[{"title":"SNR Maximization in Beyond Diagonal RIS-Assisted Single and Multiple Antenna Links","doi":"10.1109/lsp.2023.3296902","publisher":"Institute of Electrical and Electronics Engineers (IEEE)","date_updated":"2024-04-05T13:20:51Z","volume":30,"author":[{"first_name":"Ignacio","full_name":"Santamaria, Ignacio","last_name":"Santamaria"},{"first_name":"Mohammad","full_name":"Soleymani, Mohammad","last_name":"Soleymani"},{"full_name":"Jorswieck, Eduard","last_name":"Jorswieck","first_name":"Eduard"},{"first_name":"Jesús","last_name":"Gutiérrez","full_name":"Gutiérrez, Jesús"}],"date_created":"2024-04-05T09:01:21Z","year":"2023","intvolume":"        30","page":"923-926","citation":{"apa":"Santamaria, I., Soleymani, M., Jorswieck, E., &#38; Gutiérrez, J. (2023). SNR Maximization in Beyond Diagonal RIS-Assisted Single and Multiple Antenna Links. <i>IEEE Signal Processing Letters</i>, <i>30</i>, 923–926. <a href=\"https://doi.org/10.1109/lsp.2023.3296902\">https://doi.org/10.1109/lsp.2023.3296902</a>","bibtex":"@article{Santamaria_Soleymani_Jorswieck_Gutiérrez_2023, title={SNR Maximization in Beyond Diagonal RIS-Assisted Single and Multiple Antenna Links}, volume={30}, DOI={<a href=\"https://doi.org/10.1109/lsp.2023.3296902\">10.1109/lsp.2023.3296902</a>}, journal={IEEE Signal Processing Letters}, publisher={Institute of Electrical and Electronics Engineers (IEEE)}, author={Santamaria, Ignacio and Soleymani, Mohammad and Jorswieck, Eduard and Gutiérrez, Jesús}, year={2023}, pages={923–926} }","short":"I. Santamaria, M. Soleymani, E. Jorswieck, J. Gutiérrez, IEEE Signal Processing Letters 30 (2023) 923–926.","mla":"Santamaria, Ignacio, et al. “SNR Maximization in Beyond Diagonal RIS-Assisted Single and Multiple Antenna Links.” <i>IEEE Signal Processing Letters</i>, vol. 30, Institute of Electrical and Electronics Engineers (IEEE), 2023, pp. 923–26, doi:<a href=\"https://doi.org/10.1109/lsp.2023.3296902\">10.1109/lsp.2023.3296902</a>.","chicago":"Santamaria, Ignacio, Mohammad Soleymani, Eduard Jorswieck, and Jesús Gutiérrez. “SNR Maximization in Beyond Diagonal RIS-Assisted Single and Multiple Antenna Links.” <i>IEEE Signal Processing Letters</i> 30 (2023): 923–26. <a href=\"https://doi.org/10.1109/lsp.2023.3296902\">https://doi.org/10.1109/lsp.2023.3296902</a>.","ieee":"I. Santamaria, M. Soleymani, E. Jorswieck, and J. Gutiérrez, “SNR Maximization in Beyond Diagonal RIS-Assisted Single and Multiple Antenna Links,” <i>IEEE Signal Processing Letters</i>, vol. 30, pp. 923–926, 2023, doi: <a href=\"https://doi.org/10.1109/lsp.2023.3296902\">10.1109/lsp.2023.3296902</a>.","ama":"Santamaria I, Soleymani M, Jorswieck E, Gutiérrez J. SNR Maximization in Beyond Diagonal RIS-Assisted Single and Multiple Antenna Links. <i>IEEE Signal Processing Letters</i>. 2023;30:923-926. doi:<a href=\"https://doi.org/10.1109/lsp.2023.3296902\">10.1109/lsp.2023.3296902</a>"},"publication_identifier":{"issn":["1070-9908","1558-2361"]},"publication_status":"published","keyword":["Applied Mathematics","Electrical and Electronic Engineering","Signal Processing"],"language":[{"iso":"eng"}],"_id":"53262","department":[{"_id":"263"}],"user_id":"67076","status":"public","publication":"IEEE Signal Processing Letters","type":"journal_article"},{"citation":{"apa":"Soleymani, M., Santamaria, I., Jorswieck, E., &#38; Rezvani, S. (2023). NOMA-Based Improper Signaling for Multicell MISO RIS-Assisted Broadcast Channels. <i>IEEE Transactions on Signal Processing</i>, <i>71</i>, 963–978. <a href=\"https://doi.org/10.1109/tsp.2023.3259145\">https://doi.org/10.1109/tsp.2023.3259145</a>","bibtex":"@article{Soleymani_Santamaria_Jorswieck_Rezvani_2023, title={NOMA-Based Improper Signaling for Multicell MISO RIS-Assisted Broadcast Channels}, volume={71}, DOI={<a href=\"https://doi.org/10.1109/tsp.2023.3259145\">10.1109/tsp.2023.3259145</a>}, journal={IEEE Transactions on Signal Processing}, publisher={Institute of Electrical and Electronics Engineers (IEEE)}, author={Soleymani, Mohammad and Santamaria, Ignacio and Jorswieck, Eduard and Rezvani, Sepehr}, year={2023}, pages={963–978} }","short":"M. Soleymani, I. Santamaria, E. Jorswieck, S. Rezvani, IEEE Transactions on Signal Processing 71 (2023) 963–978.","mla":"Soleymani, Mohammad, et al. “NOMA-Based Improper Signaling for Multicell MISO RIS-Assisted Broadcast Channels.” <i>IEEE Transactions on Signal Processing</i>, vol. 71, Institute of Electrical and Electronics Engineers (IEEE), 2023, pp. 963–78, doi:<a href=\"https://doi.org/10.1109/tsp.2023.3259145\">10.1109/tsp.2023.3259145</a>.","chicago":"Soleymani, Mohammad, Ignacio Santamaria, Eduard Jorswieck, and Sepehr Rezvani. “NOMA-Based Improper Signaling for Multicell MISO RIS-Assisted Broadcast Channels.” <i>IEEE Transactions on Signal Processing</i> 71 (2023): 963–78. <a href=\"https://doi.org/10.1109/tsp.2023.3259145\">https://doi.org/10.1109/tsp.2023.3259145</a>.","ieee":"M. Soleymani, I. Santamaria, E. Jorswieck, and S. Rezvani, “NOMA-Based Improper Signaling for Multicell MISO RIS-Assisted Broadcast Channels,” <i>IEEE Transactions on Signal Processing</i>, vol. 71, pp. 963–978, 2023, doi: <a href=\"https://doi.org/10.1109/tsp.2023.3259145\">10.1109/tsp.2023.3259145</a>.","ama":"Soleymani M, Santamaria I, Jorswieck E, Rezvani S. NOMA-Based Improper Signaling for Multicell MISO RIS-Assisted Broadcast Channels. <i>IEEE Transactions on Signal Processing</i>. 2023;71:963-978. doi:<a href=\"https://doi.org/10.1109/tsp.2023.3259145\">10.1109/tsp.2023.3259145</a>"},"intvolume":"        71","page":"963-978","year":"2023","publication_status":"published","publication_identifier":{"issn":["1053-587X","1941-0476"]},"doi":"10.1109/tsp.2023.3259145","title":"NOMA-Based Improper Signaling for Multicell MISO RIS-Assisted Broadcast Channels","date_created":"2024-04-05T09:03:42Z","author":[{"last_name":"Soleymani","full_name":"Soleymani, Mohammad","first_name":"Mohammad"},{"first_name":"Ignacio","last_name":"Santamaria","full_name":"Santamaria, Ignacio"},{"last_name":"Jorswieck","full_name":"Jorswieck, Eduard","first_name":"Eduard"},{"last_name":"Rezvani","full_name":"Rezvani, Sepehr","first_name":"Sepehr"}],"volume":71,"date_updated":"2024-04-05T13:21:50Z","publisher":"Institute of Electrical and Electronics Engineers (IEEE)","status":"public","type":"journal_article","publication":"IEEE Transactions on Signal Processing","language":[{"iso":"eng"}],"keyword":["Electrical and Electronic Engineering","Signal Processing"],"user_id":"67076","department":[{"_id":"263"}],"_id":"53265"},{"department":[{"_id":"178"},{"_id":"184"}],"user_id":"72497","_id":"34046","language":[{"iso":"eng"}],"keyword":["Artificial Intelligence","Computer Networks and Communications","Computer Science Applications","Human-Computer Interaction","Signal Processing","Control and Systems Engineering","Human Factors and Ergonomics"],"publication":"IEEE Transactions on Human-Machine Systems","type":"journal_article","status":"public","author":[{"full_name":"Hoffmann, Christin","last_name":"Hoffmann","first_name":"Christin"},{"first_name":"Kirsten","id":"72497","full_name":"Thommes, Kirsten","last_name":"Thommes"}],"date_created":"2022-11-10T07:49:01Z","publisher":"Institute of Electrical and Electronics Engineers (IEEE)","date_updated":"2023-01-09T14:05:54Z","doi":"10.1109/thms.2022.3212335","title":"Seizing the Opportunity for Automation—How Traffic Density Determines Truck Drivers' Use of Cruise Control","publication_identifier":{"issn":["2168-2291","2168-2305"]},"quality_controlled":"1","publication_status":"published","page":"1-11","citation":{"apa":"Hoffmann, C., &#38; Thommes, K. (2022). Seizing the Opportunity for Automation—How Traffic Density Determines Truck Drivers’ Use of Cruise Control. <i>IEEE Transactions on Human-Machine Systems</i>, 1–11. <a href=\"https://doi.org/10.1109/thms.2022.3212335\">https://doi.org/10.1109/thms.2022.3212335</a>","short":"C. Hoffmann, K. Thommes, IEEE Transactions on Human-Machine Systems (2022) 1–11.","mla":"Hoffmann, Christin, and Kirsten Thommes. “Seizing the Opportunity for Automation—How Traffic Density Determines Truck Drivers’ Use of Cruise Control.” <i>IEEE Transactions on Human-Machine Systems</i>, Institute of Electrical and Electronics Engineers (IEEE), 2022, pp. 1–11, doi:<a href=\"https://doi.org/10.1109/thms.2022.3212335\">10.1109/thms.2022.3212335</a>.","bibtex":"@article{Hoffmann_Thommes_2022, title={Seizing the Opportunity for Automation—How Traffic Density Determines Truck Drivers’ Use of Cruise Control}, DOI={<a href=\"https://doi.org/10.1109/thms.2022.3212335\">10.1109/thms.2022.3212335</a>}, journal={IEEE Transactions on Human-Machine Systems}, publisher={Institute of Electrical and Electronics Engineers (IEEE)}, author={Hoffmann, Christin and Thommes, Kirsten}, year={2022}, pages={1–11} }","ama":"Hoffmann C, Thommes K. Seizing the Opportunity for Automation—How Traffic Density Determines Truck Drivers’ Use of Cruise Control. <i>IEEE Transactions on Human-Machine Systems</i>. Published online 2022:1-11. doi:<a href=\"https://doi.org/10.1109/thms.2022.3212335\">10.1109/thms.2022.3212335</a>","chicago":"Hoffmann, Christin, and Kirsten Thommes. “Seizing the Opportunity for Automation—How Traffic Density Determines Truck Drivers’ Use of Cruise Control.” <i>IEEE Transactions on Human-Machine Systems</i>, 2022, 1–11. <a href=\"https://doi.org/10.1109/thms.2022.3212335\">https://doi.org/10.1109/thms.2022.3212335</a>.","ieee":"C. Hoffmann and K. Thommes, “Seizing the Opportunity for Automation—How Traffic Density Determines Truck Drivers’ Use of Cruise Control,” <i>IEEE Transactions on Human-Machine Systems</i>, pp. 1–11, 2022, doi: <a href=\"https://doi.org/10.1109/thms.2022.3212335\">10.1109/thms.2022.3212335</a>."},"year":"2022"},{"date_updated":"2023-06-16T06:56:27Z","author":[{"first_name":"Christian","last_name":"Kress","id":"13256","full_name":"Kress, Christian"},{"last_name":"Bahmanian","full_name":"Bahmanian, Meysam","id":"69233","first_name":"Meysam"},{"first_name":"Tobias","last_name":"Schwabe","full_name":"Schwabe, Tobias","id":"39217"},{"first_name":"J. Christoph","last_name":"Scheytt","orcid":"https://orcid.org/0000-0002-5950-6618","full_name":"Scheytt, J. Christoph","id":"37144"}],"volume":29,"doi":"10.1364/OE.427424","related_material":{"link":[{"relation":"confirmation","url":"https://pubmed.ncbi.nlm.nih.gov/34614628/"}]},"citation":{"ieee":"C. Kress, M. Bahmanian, T. Schwabe, and J. C. Scheytt, “Analysis of the effects of jitter, relative intensity noise, and nonlinearity on a photonic digital-to-analog converter based on optical Nyquist pulse synthesis,” <i>Opt. Express</i>, vol. 29, no. 15, pp. 23671–23681, 2021, doi: <a href=\"https://doi.org/10.1364/OE.427424\">10.1364/OE.427424</a>.","chicago":"Kress, Christian, Meysam Bahmanian, Tobias Schwabe, and J. Christoph Scheytt. “Analysis of the Effects of Jitter, Relative Intensity Noise, and Nonlinearity on a Photonic Digital-to-Analog Converter Based on Optical Nyquist Pulse Synthesis.” <i>Opt. Express</i> 29, no. 15 (2021): 23671–23681. <a href=\"https://doi.org/10.1364/OE.427424\">https://doi.org/10.1364/OE.427424</a>.","ama":"Kress C, Bahmanian M, Schwabe T, Scheytt JC. Analysis of the effects of jitter, relative intensity noise, and nonlinearity on a photonic digital-to-analog converter based on optical Nyquist pulse synthesis. <i>Opt Express</i>. 2021;29(15):23671–23681. doi:<a href=\"https://doi.org/10.1364/OE.427424\">10.1364/OE.427424</a>","apa":"Kress, C., Bahmanian, M., Schwabe, T., &#38; Scheytt, J. C. (2021). Analysis of the effects of jitter, relative intensity noise, and nonlinearity on a photonic digital-to-analog converter based on optical Nyquist pulse synthesis. <i>Opt. Express</i>, <i>29</i>(15), 23671–23681. <a href=\"https://doi.org/10.1364/OE.427424\">https://doi.org/10.1364/OE.427424</a>","short":"C. Kress, M. Bahmanian, T. Schwabe, J.C. Scheytt, Opt. Express 29 (2021) 23671–23681.","bibtex":"@article{Kress_Bahmanian_Schwabe_Scheytt_2021, title={Analysis of the effects of jitter, relative intensity noise, and nonlinearity on a photonic digital-to-analog converter based on optical Nyquist pulse synthesis}, volume={29}, DOI={<a href=\"https://doi.org/10.1364/OE.427424\">10.1364/OE.427424</a>}, number={15}, journal={Opt. Express}, publisher={OSA}, author={Kress, Christian and Bahmanian, Meysam and Schwabe, Tobias and Scheytt, J. Christoph}, year={2021}, pages={23671–23681} }","mla":"Kress, Christian, et al. “Analysis of the Effects of Jitter, Relative Intensity Noise, and Nonlinearity on a Photonic Digital-to-Analog Converter Based on Optical Nyquist Pulse Synthesis.” <i>Opt. Express</i>, vol. 29, no. 15, OSA, 2021, pp. 23671–23681, doi:<a href=\"https://doi.org/10.1364/OE.427424\">10.1364/OE.427424</a>."},"page":"23671–23681","intvolume":"        29","project":[{"name":"PONyDAC: PONyDAC II - Präziser Optischer Nyquist-Puls-Synthesizer DAC","_id":"302","grant_number":"403154102"},{"name":"NyPhE: NyPhE - Nyquist Silicon Photonics Engine","_id":"299","grant_number":"13N14882"}],"_id":"29204","user_id":"13256","department":[{"_id":"58"},{"_id":"230"}],"type":"journal_article","status":"public","publisher":"OSA","date_created":"2022-01-10T11:51:47Z","title":"Analysis of the effects of jitter, relative intensity noise, and nonlinearity on a photonic digital-to-analog converter based on optical Nyquist pulse synthesis","issue":"15","year":"2021","keyword":["Analog to digital converters","Diode lasers","Laser sources","Phase noise","Signal processing","Wavelength division multiplexers"],"language":[{"iso":"eng"}],"publication":"Opt. Express","abstract":[{"lang":"eng","text":"An analysis of an optical Nyquist pulse synthesizer using Mach-Zehnder modulators is presented. The analysis allows to predict the upper limit of the effective number of bits of this type of photonic digital-to-analog converter. The analytical solution has been verified by means of electro-optic simulations. With this analysis the limiting factor for certain scenarios: relative intensity noise, distortions by driving the Mach-Zehnder modulator, or the signal generator phase noise can quickly be identified."}]},{"year":"2019","citation":{"bibtex":"@article{Boschmann_Agne_Thombansen_Witschen_Kraus_Platzner_2019, title={Zynq-based acceleration of robust high density myoelectric signal processing}, volume={123}, DOI={<a href=\"https://doi.org/10.1016/j.jpdc.2018.07.004\">10.1016/j.jpdc.2018.07.004</a>}, journal={Journal of Parallel and Distributed Computing}, publisher={Elsevier}, author={Boschmann, Alexander and Agne, Andreas and Thombansen, Georg and Witschen, Linus Matthias and Kraus, Florian and Platzner, Marco}, year={2019}, pages={77–89} }","short":"A. Boschmann, A. Agne, G. Thombansen, L.M. Witschen, F. Kraus, M. Platzner, Journal of Parallel and Distributed Computing 123 (2019) 77–89.","mla":"Boschmann, Alexander, et al. “Zynq-Based Acceleration of Robust High Density Myoelectric Signal Processing.” <i>Journal of Parallel and Distributed Computing</i>, vol. 123, Elsevier, 2019, pp. 77–89, doi:<a href=\"https://doi.org/10.1016/j.jpdc.2018.07.004\">10.1016/j.jpdc.2018.07.004</a>.","apa":"Boschmann, A., Agne, A., Thombansen, G., Witschen, L. M., Kraus, F., &#38; Platzner, M. (2019). Zynq-based acceleration of robust high density myoelectric signal processing. <i>Journal of Parallel and Distributed Computing</i>, <i>123</i>, 77–89. <a href=\"https://doi.org/10.1016/j.jpdc.2018.07.004\">https://doi.org/10.1016/j.jpdc.2018.07.004</a>","ama":"Boschmann A, Agne A, Thombansen G, Witschen LM, Kraus F, Platzner M. Zynq-based acceleration of robust high density myoelectric signal processing. <i>Journal of Parallel and Distributed Computing</i>. 2019;123:77-89. doi:<a href=\"https://doi.org/10.1016/j.jpdc.2018.07.004\">10.1016/j.jpdc.2018.07.004</a>","chicago":"Boschmann, Alexander, Andreas Agne, Georg Thombansen, Linus Matthias Witschen, Florian Kraus, and Marco Platzner. “Zynq-Based Acceleration of Robust High Density Myoelectric Signal Processing.” <i>Journal of Parallel and Distributed Computing</i> 123 (2019): 77–89. <a href=\"https://doi.org/10.1016/j.jpdc.2018.07.004\">https://doi.org/10.1016/j.jpdc.2018.07.004</a>.","ieee":"A. Boschmann, A. Agne, G. Thombansen, L. M. Witschen, F. Kraus, and M. Platzner, “Zynq-based acceleration of robust high density myoelectric signal processing,” <i>Journal of Parallel and Distributed Computing</i>, vol. 123, pp. 77–89, 2019."},"page":"77-89","intvolume":"       123","publication_status":"published","publication_identifier":{"issn":["0743-7315"]},"title":"Zynq-based acceleration of robust high density myoelectric signal processing","doi":"10.1016/j.jpdc.2018.07.004","date_updated":"2022-01-06T06:51:13Z","publisher":"Elsevier","author":[{"first_name":"Alexander","full_name":"Boschmann, Alexander","last_name":"Boschmann"},{"full_name":"Agne, Andreas","last_name":"Agne","first_name":"Andreas"},{"full_name":"Thombansen, Georg","last_name":"Thombansen","first_name":"Georg"},{"first_name":"Linus Matthias","id":"49051","full_name":"Witschen, Linus Matthias","last_name":"Witschen"},{"last_name":"Kraus","full_name":"Kraus, Florian","first_name":"Florian"},{"first_name":"Marco","full_name":"Platzner, Marco","id":"398","last_name":"Platzner"}],"date_created":"2019-07-12T13:13:55Z","volume":123,"abstract":[{"text":"Advances in electromyographic (EMG) sensor technology and machine learning algorithms have led to an increased research effort into high density EMG-based pattern recognition methods for prosthesis control. With the goal set on an autonomous multi-movement prosthesis capable of performing training and classification of an amputee’s EMG signals, the focus of this paper lies in the acceleration of the embedded signal processing chain. We present two Xilinx Zynq-based architectures for accelerating two inherently different high density EMG-based control algorithms. The first hardware accelerated design achieves speed-ups of up to 4.8 over the software-only solution, allowing for a processing delay lower than the sample period of 1 ms. The second system achieved a speed-up of 5.5 over the software-only version and operates at a still satisfactory low processing delay of up to 15 ms while providing a higher reliability and robustness against electrode shift and noisy channels.","lang":"eng"}],"status":"public","type":"journal_article","publication":"Journal of Parallel and Distributed Computing","keyword":["High density electromyography","FPGA acceleration","Medical signal processing","Pattern recognition","Prosthetics"],"language":[{"iso":"eng"}],"_id":"11950","user_id":"398","department":[{"_id":"78"}]},{"author":[{"last_name":"Russer","full_name":"Russer, Johannes A.","first_name":"Johannes A."},{"last_name":"Uddin","full_name":"Uddin, Nasir","first_name":"Nasir"},{"first_name":"Ahmed Sanaa","last_name":"Awny","full_name":"Awny, Ahmed Sanaa"},{"id":"538","full_name":"Thiede, Andreas","last_name":"Thiede","first_name":"Andreas"},{"first_name":"Peter","full_name":"Russer, Peter","last_name":"Russer"}],"date_created":"2023-02-07T10:59:53Z","volume":4,"date_updated":"2023-02-07T11:00:56Z","publisher":"Institute of Electrical and Electronics Engineers (IEEE)","doi":"10.1109/memc.2015.7336761","title":"Near-field measurement of stochastic electromagnetic fields","issue":"3","publication_status":"published","publication_identifier":{"issn":["2162-2264","2162-2272"]},"citation":{"mla":"Russer, Johannes A., et al. “Near-Field Measurement of Stochastic Electromagnetic Fields.” <i>IEEE Electromagnetic Compatibility Magazine</i>, vol. 4, no. 3, Institute of Electrical and Electronics Engineers (IEEE), 2015, pp. 79–85, doi:<a href=\"https://doi.org/10.1109/memc.2015.7336761\">10.1109/memc.2015.7336761</a>.","bibtex":"@article{Russer_Uddin_Awny_Thiede_Russer_2015, title={Near-field measurement of stochastic electromagnetic fields}, volume={4}, DOI={<a href=\"https://doi.org/10.1109/memc.2015.7336761\">10.1109/memc.2015.7336761</a>}, number={3}, journal={IEEE Electromagnetic Compatibility Magazine}, publisher={Institute of Electrical and Electronics Engineers (IEEE)}, author={Russer, Johannes A. and Uddin, Nasir and Awny, Ahmed Sanaa and Thiede, Andreas and Russer, Peter}, year={2015}, pages={79–85} }","short":"J.A. Russer, N. Uddin, A.S. Awny, A. Thiede, P. Russer, IEEE Electromagnetic Compatibility Magazine 4 (2015) 79–85.","apa":"Russer, J. A., Uddin, N., Awny, A. S., Thiede, A., &#38; Russer, P. (2015). Near-field measurement of stochastic electromagnetic fields. <i>IEEE Electromagnetic Compatibility Magazine</i>, <i>4</i>(3), 79–85. <a href=\"https://doi.org/10.1109/memc.2015.7336761\">https://doi.org/10.1109/memc.2015.7336761</a>","ama":"Russer JA, Uddin N, Awny AS, Thiede A, Russer P. Near-field measurement of stochastic electromagnetic fields. <i>IEEE Electromagnetic Compatibility Magazine</i>. 2015;4(3):79-85. doi:<a href=\"https://doi.org/10.1109/memc.2015.7336761\">10.1109/memc.2015.7336761</a>","chicago":"Russer, Johannes A., Nasir Uddin, Ahmed Sanaa Awny, Andreas Thiede, and Peter Russer. “Near-Field Measurement of Stochastic Electromagnetic Fields.” <i>IEEE Electromagnetic Compatibility Magazine</i> 4, no. 3 (2015): 79–85. <a href=\"https://doi.org/10.1109/memc.2015.7336761\">https://doi.org/10.1109/memc.2015.7336761</a>.","ieee":"J. A. Russer, N. Uddin, A. S. Awny, A. Thiede, and P. Russer, “Near-field measurement of stochastic electromagnetic fields,” <i>IEEE Electromagnetic Compatibility Magazine</i>, vol. 4, no. 3, pp. 79–85, 2015, doi: <a href=\"https://doi.org/10.1109/memc.2015.7336761\">10.1109/memc.2015.7336761</a>."},"intvolume":"         4","page":"79-85","year":"2015","user_id":"77496","department":[{"_id":"51"}],"_id":"41866","language":[{"iso":"eng"}],"keyword":["Electrical and Electronic Engineering","Computer Networks and Communications","Instrumentation","Signal Processing","Software"],"type":"journal_article","publication":"IEEE Electromagnetic Compatibility Magazine","status":"public"},{"doi":"10.3390/electronics4030480","title":"Flexible Electronics: Integration Processes for Organic and Inorganic Semiconductor-Based Thin-Film Transistors","volume":4,"author":[{"first_name":"Fábio","full_name":"Vidor, Fábio","last_name":"Vidor"},{"first_name":"Thorsten","last_name":"Meyers","full_name":"Meyers, Thorsten"},{"first_name":"Ulrich","id":"20179","full_name":"Hilleringmann, Ulrich","last_name":"Hilleringmann"}],"date_created":"2023-01-24T11:23:57Z","publisher":"MDPI AG","date_updated":"2023-03-21T10:16:23Z","page":"480-506","intvolume":"         4","citation":{"apa":"Vidor, F., Meyers, T., &#38; Hilleringmann, U. (2015). Flexible Electronics: Integration Processes for Organic and Inorganic Semiconductor-Based Thin-Film Transistors. <i>Electronics</i>, <i>4</i>(3), 480–506. <a href=\"https://doi.org/10.3390/electronics4030480\">https://doi.org/10.3390/electronics4030480</a>","short":"F. Vidor, T. Meyers, U. Hilleringmann, Electronics 4 (2015) 480–506.","bibtex":"@article{Vidor_Meyers_Hilleringmann_2015, title={Flexible Electronics: Integration Processes for Organic and Inorganic Semiconductor-Based Thin-Film Transistors}, volume={4}, DOI={<a href=\"https://doi.org/10.3390/electronics4030480\">10.3390/electronics4030480</a>}, number={3}, journal={Electronics}, publisher={MDPI AG}, author={Vidor, Fábio and Meyers, Thorsten and Hilleringmann, Ulrich}, year={2015}, pages={480–506} }","mla":"Vidor, Fábio, et al. “Flexible Electronics: Integration Processes for Organic and Inorganic Semiconductor-Based Thin-Film Transistors.” <i>Electronics</i>, vol. 4, no. 3, MDPI AG, 2015, pp. 480–506, doi:<a href=\"https://doi.org/10.3390/electronics4030480\">10.3390/electronics4030480</a>.","chicago":"Vidor, Fábio, Thorsten Meyers, and Ulrich Hilleringmann. “Flexible Electronics: Integration Processes for Organic and Inorganic Semiconductor-Based Thin-Film Transistors.” <i>Electronics</i> 4, no. 3 (2015): 480–506. <a href=\"https://doi.org/10.3390/electronics4030480\">https://doi.org/10.3390/electronics4030480</a>.","ieee":"F. Vidor, T. Meyers, and U. Hilleringmann, “Flexible Electronics: Integration Processes for Organic and Inorganic Semiconductor-Based Thin-Film Transistors,” <i>Electronics</i>, vol. 4, no. 3, pp. 480–506, 2015, doi: <a href=\"https://doi.org/10.3390/electronics4030480\">10.3390/electronics4030480</a>.","ama":"Vidor F, Meyers T, Hilleringmann U. Flexible Electronics: Integration Processes for Organic and Inorganic Semiconductor-Based Thin-Film Transistors. <i>Electronics</i>. 2015;4(3):480-506. doi:<a href=\"https://doi.org/10.3390/electronics4030480\">10.3390/electronics4030480</a>"},"year":"2015","issue":"3","publication_identifier":{"issn":["2079-9292"]},"publication_status":"published","language":[{"iso":"eng"}],"keyword":["Electrical and Electronic Engineering","Computer Networks and Communications","Hardware and Architecture","Signal Processing","Control and Systems Engineering"],"department":[{"_id":"59"}],"user_id":"20179","_id":"39479","status":"public","publication":"Electronics","type":"journal_article"},{"user_id":"44006","department":[{"_id":"54"}],"_id":"11850","status":"public","type":"journal_article","main_file_link":[{"url":"https://groups.uni-paderborn.de/nt/pubs/2011/KrWaHa11.pdf","open_access":"1"}],"doi":"10.1109/TASL.2010.2047324","author":[{"last_name":"Krueger","full_name":"Krueger, Alexander","first_name":"Alexander"},{"first_name":"Ernst","full_name":"Warsitz, Ernst","last_name":"Warsitz"},{"full_name":"Haeb-Umbach, Reinhold","id":"242","last_name":"Haeb-Umbach","first_name":"Reinhold"}],"volume":19,"oa":"1","date_updated":"2022-01-06T06:51:11Z","citation":{"bibtex":"@article{Krueger_Warsitz_Haeb-Umbach_2011, title={Speech Enhancement With a GSC-Like Structure Employing Eigenvector-Based Transfer Function Ratios Estimation}, volume={19}, DOI={<a href=\"https://doi.org/10.1109/TASL.2010.2047324\">10.1109/TASL.2010.2047324</a>}, number={1}, journal={IEEE Transactions on Audio, Speech, and Language Processing}, author={Krueger, Alexander and Warsitz, Ernst and Haeb-Umbach, Reinhold}, year={2011}, pages={206–219} }","mla":"Krueger, Alexander, et al. “Speech Enhancement With a GSC-Like Structure Employing Eigenvector-Based Transfer Function Ratios Estimation.” <i>IEEE Transactions on Audio, Speech, and Language Processing</i>, vol. 19, no. 1, 2011, pp. 206–19, doi:<a href=\"https://doi.org/10.1109/TASL.2010.2047324\">10.1109/TASL.2010.2047324</a>.","short":"A. Krueger, E. Warsitz, R. Haeb-Umbach, IEEE Transactions on Audio, Speech, and Language Processing 19 (2011) 206–219.","apa":"Krueger, A., Warsitz, E., &#38; Haeb-Umbach, R. (2011). Speech Enhancement With a GSC-Like Structure Employing Eigenvector-Based Transfer Function Ratios Estimation. <i>IEEE Transactions on Audio, Speech, and Language Processing</i>, <i>19</i>(1), 206–219. <a href=\"https://doi.org/10.1109/TASL.2010.2047324\">https://doi.org/10.1109/TASL.2010.2047324</a>","ieee":"A. Krueger, E. Warsitz, and R. Haeb-Umbach, “Speech Enhancement With a GSC-Like Structure Employing Eigenvector-Based Transfer Function Ratios Estimation,” <i>IEEE Transactions on Audio, Speech, and Language Processing</i>, vol. 19, no. 1, pp. 206–219, 2011.","chicago":"Krueger, Alexander, Ernst Warsitz, and Reinhold Haeb-Umbach. “Speech Enhancement With a GSC-Like Structure Employing Eigenvector-Based Transfer Function Ratios Estimation.” <i>IEEE Transactions on Audio, Speech, and Language Processing</i> 19, no. 1 (2011): 206–19. <a href=\"https://doi.org/10.1109/TASL.2010.2047324\">https://doi.org/10.1109/TASL.2010.2047324</a>.","ama":"Krueger A, Warsitz E, Haeb-Umbach R. Speech Enhancement With a GSC-Like Structure Employing Eigenvector-Based Transfer Function Ratios Estimation. <i>IEEE Transactions on Audio, Speech, and Language Processing</i>. 2011;19(1):206-219. doi:<a href=\"https://doi.org/10.1109/TASL.2010.2047324\">10.1109/TASL.2010.2047324</a>"},"page":"206-219","intvolume":"        19","language":[{"iso":"eng"}],"keyword":["acoustical transfer function ratio","adaptive eigenvector tracking","array signal processing","beamformer design","blocking matrix","eigenvalues and eigenfunctions","eigenvector-based transfer function ratios estimation","generalized sidelobe canceler","interference reduction","iterative methods","power iteration method","reduced speech distortions","reverberant enclosure","reverberation","speech enhancement","stationary noise"],"abstract":[{"text":"In this paper, we present a novel blocking matrix and fixed beamformer design for a generalized sidelobe canceler for speech enhancement in a reverberant enclosure. They are based on a new method for estimating the acoustical transfer function ratios in the presence of stationary noise. The estimation method relies on solving a generalized eigenvalue problem in each frequency bin. An adaptive eigenvector tracking utilizing the power iteration method is employed and shown to achieve a high convergence speed. Simulation results demonstrate that the proposed beamformer leads to better noise and interference reduction and reduced speech distortions compared to other blocking matrix designs from the literature.","lang":"eng"}],"publication":"IEEE Transactions on Audio, Speech, and Language Processing","title":"Speech Enhancement With a GSC-Like Structure Employing Eigenvector-Based Transfer Function Ratios Estimation","date_created":"2019-07-12T05:29:28Z","year":"2011","issue":"1"},{"type":"conference","publication":"IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2010)","status":"public","abstract":[{"lang":"eng","text":"In this paper we propose to employ directional statistics in a complex vector space to approach the problem of blind speech separation in the presence of spatially correlated noise. We interpret the values of the short time Fourier transform of the microphone signals to be draws from a mixture of complex Watson distributions, a probabilistic model which naturally accounts for spatial aliasing. The parameters of the density are related to the a priori source probabilities, the power of the sources and the transfer function ratios from sources to sensors. Estimation formulas are derived for these parameters by employing the Expectation Maximization (EM) algorithm. The E-step corresponds to the estimation of the source presence probabilities for each time-frequency bin, while the M-step leads to a maximum signal-to-noise ratio (MaxSNR) beamformer in the presence of uncertainty about the source activity. Experimental results are reported for an implementation in a generalized sidelobe canceller (GSC) like spatial beamforming configuration for 3 speech sources with significant coherent noise in reverberant environments, demonstrating the usefulness of the novel modeling framework."}],"user_id":"44006","department":[{"_id":"54"}],"_id":"11913","language":[{"iso":"eng"}],"keyword":["array signal processing","blind source separation","blind speech separation","complex vector space","complex Watson distribution","directional statistics","expectation-maximisation algorithm","expectation maximization algorithm","Fourier transform","Fourier transforms","generalized sidelobe canceller","interference suppression","maximum signal-to-noise ratio beamformer","microphone signal","probabilistic model","spatial aliasing","spatial beamforming configuration","speech enhancement","statistical distributions"],"citation":{"ieee":"D. H. Tran Vu and R. Haeb-Umbach, “Blind speech separation employing directional statistics in an Expectation Maximization framework,” in <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2010)</i>, 2010, pp. 241–244.","chicago":"Tran Vu, Dang Hai, and Reinhold Haeb-Umbach. “Blind Speech Separation Employing Directional Statistics in an Expectation Maximization Framework.” In <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2010)</i>, 241–44, 2010. <a href=\"https://doi.org/10.1109/ICASSP.2010.5495994\">https://doi.org/10.1109/ICASSP.2010.5495994</a>.","ama":"Tran Vu DH, Haeb-Umbach R. Blind speech separation employing directional statistics in an Expectation Maximization framework. In: <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2010)</i>. ; 2010:241-244. doi:<a href=\"https://doi.org/10.1109/ICASSP.2010.5495994\">10.1109/ICASSP.2010.5495994</a>","short":"D.H. Tran Vu, R. Haeb-Umbach, in: IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2010), 2010, pp. 241–244.","bibtex":"@inproceedings{Tran Vu_Haeb-Umbach_2010, title={Blind speech separation employing directional statistics in an Expectation Maximization framework}, DOI={<a href=\"https://doi.org/10.1109/ICASSP.2010.5495994\">10.1109/ICASSP.2010.5495994</a>}, booktitle={IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2010)}, author={Tran Vu, Dang Hai and Haeb-Umbach, Reinhold}, year={2010}, pages={241–244} }","mla":"Tran Vu, Dang Hai, and Reinhold Haeb-Umbach. “Blind Speech Separation Employing Directional Statistics in an Expectation Maximization Framework.” <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2010)</i>, 2010, pp. 241–44, doi:<a href=\"https://doi.org/10.1109/ICASSP.2010.5495994\">10.1109/ICASSP.2010.5495994</a>.","apa":"Tran Vu, D. H., &#38; Haeb-Umbach, R. (2010). Blind speech separation employing directional statistics in an Expectation Maximization framework. In <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2010)</i> (pp. 241–244). <a href=\"https://doi.org/10.1109/ICASSP.2010.5495994\">https://doi.org/10.1109/ICASSP.2010.5495994</a>"},"page":"241-244","year":"2010","author":[{"first_name":"Dang Hai","last_name":"Tran Vu","full_name":"Tran Vu, Dang Hai"},{"id":"242","full_name":"Haeb-Umbach, Reinhold","last_name":"Haeb-Umbach","first_name":"Reinhold"}],"date_created":"2019-07-12T05:30:40Z","date_updated":"2022-01-06T06:51:12Z","oa":"1","main_file_link":[{"open_access":"1","url":"https://groups.uni-paderborn.de/nt/pubs/2010/DaHa10-2.pdf"}],"doi":"10.1109/ICASSP.2010.5495994","title":"Blind speech separation employing directional statistics in an Expectation Maximization framework"},{"date_updated":"2023-02-01T13:00:15Z","author":[{"first_name":"Anna-Lisa","full_name":"Vollmer, Anna-Lisa","last_name":"Vollmer"},{"last_name":"Pitsch","full_name":"Pitsch, Karola","first_name":"Karola"},{"first_name":"Katrin Solveig","full_name":"Lohan, Katrin Solveig","last_name":"Lohan"},{"first_name":"Jannik","last_name":"Fritsch","full_name":"Fritsch, Jannik"},{"first_name":"Katharina","last_name":"Rohlfing","full_name":"Rohlfing, Katharina","id":"50352"},{"last_name":"Wrede","full_name":"Wrede, Britta","first_name":"Britta"}],"date_created":"2020-06-24T13:02:20Z","title":"Developing feedback: How children of different age contribute to a tutoring interaction with adults","year":"2010","page":"76-81","citation":{"chicago":"Vollmer, Anna-Lisa, Karola Pitsch, Katrin Solveig Lohan, Jannik Fritsch, Katharina Rohlfing, and Britta Wrede. “Developing Feedback: How Children of Different Age Contribute to a Tutoring Interaction with Adults.” In <i>Development and Learning (ICDL), 2010 IEEE 9th International Conference on Development and Learning</i>, 76–81, 2010.","ieee":"A.-L. Vollmer, K. Pitsch, K. S. Lohan, J. Fritsch, K. Rohlfing, and B. Wrede, “Developing feedback: How children of different age contribute to a tutoring interaction with adults,” in <i>Development and Learning (ICDL), 2010 IEEE 9th International Conference on Development and Learning</i>, 2010, pp. 76–81.","ama":"Vollmer A-L, Pitsch K, Lohan KS, Fritsch J, Rohlfing K, Wrede B. Developing feedback: How children of different age contribute to a tutoring interaction with adults. In: <i>Development and Learning (ICDL), 2010 IEEE 9th International Conference on Development and Learning</i>. ; 2010:76-81.","apa":"Vollmer, A.-L., Pitsch, K., Lohan, K. S., Fritsch, J., Rohlfing, K., &#38; Wrede, B. (2010). Developing feedback: How children of different age contribute to a tutoring interaction with adults. <i>Development and Learning (ICDL), 2010 IEEE 9th International Conference on Development and Learning</i>, 76–81.","bibtex":"@inproceedings{Vollmer_Pitsch_Lohan_Fritsch_Rohlfing_Wrede_2010, title={Developing feedback: How children of different age contribute to a tutoring interaction with adults}, booktitle={Development and Learning (ICDL), 2010 IEEE 9th International Conference on Development and Learning}, author={Vollmer, Anna-Lisa and Pitsch, Karola and Lohan, Katrin Solveig and Fritsch, Jannik and Rohlfing, Katharina and Wrede, Britta}, year={2010}, pages={76–81} }","mla":"Vollmer, Anna-Lisa, et al. “Developing Feedback: How Children of Different Age Contribute to a Tutoring Interaction with Adults.” <i>Development and Learning (ICDL), 2010 IEEE 9th International Conference on Development and Learning</i>, 2010, pp. 76–81.","short":"A.-L. Vollmer, K. Pitsch, K.S. Lohan, J. Fritsch, K. Rohlfing, B. Wrede, in: Development and Learning (ICDL), 2010 IEEE 9th International Conference on Development and Learning, 2010, pp. 76–81."},"_id":"17253","department":[{"_id":"749"}],"user_id":"14931","keyword":["tutoring interaction","social interaction","video signal processing","robot systems","paediatrics","neurophysiology","Learning","infant","feedback","biology computing","cognitive capabilities","cognition","children"],"language":[{"iso":"eng"}],"publication":"Development and Learning (ICDL), 2010 IEEE 9th International Conference on Development and Learning","type":"conference","status":"public"},{"title":"Speech enhancement with a new generalized eigenvector blocking matrix for application in a generalized sidelobe canceller","main_file_link":[{"url":"https://groups.uni-paderborn.de/nt/pubs/2008/WaKrHa08.pdf","open_access":"1"}],"doi":"10.1109/ICASSP.2008.4517549","oa":"1","date_updated":"2022-01-06T06:51:12Z","date_created":"2019-07-12T05:31:06Z","author":[{"last_name":"Warsitz","full_name":"Warsitz, Ernst","first_name":"Ernst"},{"first_name":"Alexander","full_name":"Krueger, Alexander","last_name":"Krueger"},{"id":"242","full_name":"Haeb-Umbach, Reinhold","last_name":"Haeb-Umbach","first_name":"Reinhold"}],"year":"2008","citation":{"mla":"Warsitz, Ernst, et al. “Speech Enhancement with a New Generalized Eigenvector Blocking Matrix for Application in a Generalized Sidelobe Canceller.” <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)</i>, 2008, pp. 73–76, doi:<a href=\"https://doi.org/10.1109/ICASSP.2008.4517549\">10.1109/ICASSP.2008.4517549</a>.","bibtex":"@inproceedings{Warsitz_Krueger_Haeb-Umbach_2008, title={Speech enhancement with a new generalized eigenvector blocking matrix for application in a generalized sidelobe canceller}, DOI={<a href=\"https://doi.org/10.1109/ICASSP.2008.4517549\">10.1109/ICASSP.2008.4517549</a>}, booktitle={IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)}, author={Warsitz, Ernst and Krueger, Alexander and Haeb-Umbach, Reinhold}, year={2008}, pages={73–76} }","short":"E. Warsitz, A. Krueger, R. Haeb-Umbach, in: IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008), 2008, pp. 73–76.","apa":"Warsitz, E., Krueger, A., &#38; Haeb-Umbach, R. (2008). Speech enhancement with a new generalized eigenvector blocking matrix for application in a generalized sidelobe canceller. In <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)</i> (pp. 73–76). <a href=\"https://doi.org/10.1109/ICASSP.2008.4517549\">https://doi.org/10.1109/ICASSP.2008.4517549</a>","ama":"Warsitz E, Krueger A, Haeb-Umbach R. Speech enhancement with a new generalized eigenvector blocking matrix for application in a generalized sidelobe canceller. In: <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)</i>. ; 2008:73-76. doi:<a href=\"https://doi.org/10.1109/ICASSP.2008.4517549\">10.1109/ICASSP.2008.4517549</a>","chicago":"Warsitz, Ernst, Alexander Krueger, and Reinhold Haeb-Umbach. “Speech Enhancement with a New Generalized Eigenvector Blocking Matrix for Application in a Generalized Sidelobe Canceller.” In <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)</i>, 73–76, 2008. <a href=\"https://doi.org/10.1109/ICASSP.2008.4517549\">https://doi.org/10.1109/ICASSP.2008.4517549</a>.","ieee":"E. Warsitz, A. Krueger, and R. Haeb-Umbach, “Speech enhancement with a new generalized eigenvector blocking matrix for application in a generalized sidelobe canceller,” in <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)</i>, 2008, pp. 73–76."},"page":"73-76","keyword":["adaptive interference canceller","adaptive signal processing","array signal processing","beamforming method","eigenvalues and eigenfunctions","generalized eigenvector blocking matrix","generalized sidelobe canceller","interference suppression","matrix algebra","noise suppression","speech enhancement","transfer function estimation","transfer functions"],"language":[{"iso":"eng"}],"_id":"11935","user_id":"44006","department":[{"_id":"54"}],"abstract":[{"lang":"eng","text":"The generalized sidelobe canceller by Griffith and Jim is a robust beamforming method to enhance a desired (speech) signal in the presence of stationary noise. Its performance depends to a high degree on the construction of the blocking matrix which produces noise reference signals for the subsequent adaptive interference canceller. Especially in reverberated environments the beamformer may suffer from signal leakage and reduced noise suppression. In this paper a new blocking matrix is proposed. It is based on a generalized eigenvalue problem whose solution provides an indirect estimation of the transfer functions from the source to the sensors. The quality of the new generalized eigenvector blocking matrix is studied in simulated rooms with different reverberation times and is compared to alternatives proposed in the literature."}],"status":"public","type":"conference","publication":"IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2008)"},{"_id":"11927","department":[{"_id":"54"}],"user_id":"44006","status":"public","type":"journal_article","doi":"10.1109/TASL.2007.898454","main_file_link":[{"open_access":"1","url":"https://groups.uni-paderborn.de/nt/pubs/2007/WaHa07.pdf"}],"date_updated":"2022-01-06T06:51:12Z","oa":"1","volume":15,"author":[{"first_name":"Ernst","last_name":"Warsitz","full_name":"Warsitz, Ernst"},{"first_name":"Reinhold","full_name":"Haeb-Umbach, Reinhold","id":"242","last_name":"Haeb-Umbach"}],"page":"1529-1539","intvolume":"        15","citation":{"apa":"Warsitz, E., &#38; Haeb-Umbach, R. (2007). Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition. <i>IEEE Transactions on Audio, Speech, and Language Processing</i>, <i>15</i>(5), 1529–1539. <a href=\"https://doi.org/10.1109/TASL.2007.898454\">https://doi.org/10.1109/TASL.2007.898454</a>","short":"E. Warsitz, R. Haeb-Umbach, IEEE Transactions on Audio, Speech, and Language Processing 15 (2007) 1529–1539.","bibtex":"@article{Warsitz_Haeb-Umbach_2007, title={Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition}, volume={15}, DOI={<a href=\"https://doi.org/10.1109/TASL.2007.898454\">10.1109/TASL.2007.898454</a>}, number={5}, journal={IEEE Transactions on Audio, Speech, and Language Processing}, author={Warsitz, Ernst and Haeb-Umbach, Reinhold}, year={2007}, pages={1529–1539} }","mla":"Warsitz, Ernst, and Reinhold Haeb-Umbach. “Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition.” <i>IEEE Transactions on Audio, Speech, and Language Processing</i>, vol. 15, no. 5, 2007, pp. 1529–39, doi:<a href=\"https://doi.org/10.1109/TASL.2007.898454\">10.1109/TASL.2007.898454</a>.","chicago":"Warsitz, Ernst, and Reinhold Haeb-Umbach. “Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition.” <i>IEEE Transactions on Audio, Speech, and Language Processing</i> 15, no. 5 (2007): 1529–39. <a href=\"https://doi.org/10.1109/TASL.2007.898454\">https://doi.org/10.1109/TASL.2007.898454</a>.","ieee":"E. Warsitz and R. Haeb-Umbach, “Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition,” <i>IEEE Transactions on Audio, Speech, and Language Processing</i>, vol. 15, no. 5, pp. 1529–1539, 2007.","ama":"Warsitz E, Haeb-Umbach R. Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition. <i>IEEE Transactions on Audio, Speech, and Language Processing</i>. 2007;15(5):1529-1539. doi:<a href=\"https://doi.org/10.1109/TASL.2007.898454\">10.1109/TASL.2007.898454</a>"},"keyword":["acoustic signal processing","arbitrary transfer function","array signal processing","blind acoustic beamforming","direction-of-arrival","direction-of-arrival estimation","eigenvalues and eigenfunctions","generalized eigenvalue decomposition","gradient ascent adaptation algorithm","microphone arrays","microphones","narrowband array beamforming","sensor array","single-channel post-filter","spatially colored noise","transfer functions"],"language":[{"iso":"eng"}],"abstract":[{"text":"Maximizing the output signal-to-noise ratio (SNR) of a sensor array in the presence of spatially colored noise leads to a generalized eigenvalue problem. While this approach has extensively been employed in narrowband (antenna) array beamforming, it is typically not used for broadband (microphone) array beamforming due to the uncontrolled amount of speech distortion introduced by a narrowband SNR criterion. In this paper, we show how the distortion of the desired signal can be controlled by a single-channel post-filter, resulting in a performance comparable to the generalized minimum variance distortionless response beamformer, where arbitrary transfer functions relate the source and the microphones. Results are given both for directional and diffuse noise. A novel gradient ascent adaptation algorithm is presented, and its good convergence properties are experimentally revealed by comparison with alternatives from the literature. A key feature of the proposed beamformer is that it operates blindly, i.e., it neither requires knowledge about the array geometry nor an explicit estimation of the transfer functions from source to sensors or the direction-of-arrival.","lang":"eng"}],"publication":"IEEE Transactions on Audio, Speech, and Language Processing","title":"Blind Acoustic Beamforming Based on Generalized Eigenvalue Decomposition","date_created":"2019-07-12T05:30:57Z","year":"2007","issue":"5"},{"page":"iv/797-iv/800 Vol. 4","intvolume":"         4","citation":{"bibtex":"@inproceedings{Warsitz_Haeb-Umbach_2005, title={Acoustic filter-and-sum beamforming by adaptive principal component analysis}, volume={4}, DOI={<a href=\"https://doi.org/10.1109/ICASSP.2005.1416129\">10.1109/ICASSP.2005.1416129</a>}, booktitle={IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2005)}, author={Warsitz, Ernst and Haeb-Umbach, Reinhold}, year={2005}, pages={iv/797-iv/800 Vol. 4} }","mla":"Warsitz, Ernst, and Reinhold Haeb-Umbach. “Acoustic Filter-and-Sum Beamforming by Adaptive Principal Component Analysis.” <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2005)</i>, vol. 4, 2005, p. iv/797-iv/800 Vol. 4, doi:<a href=\"https://doi.org/10.1109/ICASSP.2005.1416129\">10.1109/ICASSP.2005.1416129</a>.","short":"E. Warsitz, R. Haeb-Umbach, in: IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2005), 2005, p. iv/797-iv/800 Vol. 4.","apa":"Warsitz, E., &#38; Haeb-Umbach, R. (2005). Acoustic filter-and-sum beamforming by adaptive principal component analysis. In <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2005)</i> (Vol. 4, p. iv/797-iv/800 Vol. 4). <a href=\"https://doi.org/10.1109/ICASSP.2005.1416129\">https://doi.org/10.1109/ICASSP.2005.1416129</a>","ieee":"E. Warsitz and R. Haeb-Umbach, “Acoustic filter-and-sum beamforming by adaptive principal component analysis,” in <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2005)</i>, 2005, vol. 4, p. iv/797-iv/800 Vol. 4.","chicago":"Warsitz, Ernst, and Reinhold Haeb-Umbach. “Acoustic Filter-and-Sum Beamforming by Adaptive Principal Component Analysis.” In <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2005)</i>, 4:iv/797-iv/800 Vol. 4, 2005. <a href=\"https://doi.org/10.1109/ICASSP.2005.1416129\">https://doi.org/10.1109/ICASSP.2005.1416129</a>.","ama":"Warsitz E, Haeb-Umbach R. Acoustic filter-and-sum beamforming by adaptive principal component analysis. In: <i>IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2005)</i>. Vol 4. ; 2005:iv/797-iv/800 Vol. 4. doi:<a href=\"https://doi.org/10.1109/ICASSP.2005.1416129\">10.1109/ICASSP.2005.1416129</a>"},"year":"2005","doi":"10.1109/ICASSP.2005.1416129","main_file_link":[{"url":"https://groups.uni-paderborn.de/nt/pubs/2005/WaHa05.pdf","open_access":"1"}],"title":"Acoustic filter-and-sum beamforming by adaptive principal component analysis","volume":4,"date_created":"2019-07-12T05:31:00Z","author":[{"last_name":"Warsitz","full_name":"Warsitz, Ernst","first_name":"Ernst"},{"first_name":"Reinhold","full_name":"Haeb-Umbach, Reinhold","id":"242","last_name":"Haeb-Umbach"}],"date_updated":"2022-01-06T06:51:12Z","oa":"1","status":"public","abstract":[{"lang":"eng","text":"For human-machine interfaces in distant-talking environments multichannel signal processing is often employed to obtain an enhanced signal for subsequent processing. In this paper we propose a novel adaptation algorithm for a filter-and-sum beamformer to adjust the coefficients of FIR filters to changing acoustic room impulses, e.g. due to speaker movement. A deterministic and a stochastic gradient ascent algorithm are derived from a constrained optimization problem, which iteratively estimates the eigenvector corresponding to the largest eigenvalue of the cross power spectral density of the microphone signals. The method does not require an explicit estimation of the speaker location. The experimental results show fast adaptation and excellent robustness of the proposed algorithm."}],"publication":"IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2005)","type":"conference","language":[{"iso":"eng"}],"keyword":["acoustic filter-and-sum beamforming","acoustic room impulses","acoustic signal processing","adaptive principal component analysis","adaptive signal processing","architectural acoustics","constrained optimization problem","cross power spectral density","deterministic algorithm","deterministic algorithms","distant-talking environments","eigenvalues and eigenfunctions","eigenvector","enhanced signal","filter-and-sum beamformer","FIR filter coefficients","FIR filter coefficients","FIR filters","gradient methods","human-machine interfaces","iterative estimation","iterative methods","largest eigenvalue","microphone signals","multichannel signal processing","optimisation","principal component analysis","spectral analysis","stochastic gradient ascent algorithm","stochastic processes"],"department":[{"_id":"54"}],"user_id":"44006","_id":"11930"},{"year":"2004","page":"367-370","citation":{"ama":"Warsitz E, Haeb-Umbach R. Robust speaker direction estimation with particle filtering. In: <i>IEEE Workshop on Multimedia Signal Processing (MMSP 2004)</i>. ; 2004:367-370. doi:<a href=\"https://doi.org/10.1109/MMSP.2004.1436569\">10.1109/MMSP.2004.1436569</a>","chicago":"Warsitz, Ernst, and Reinhold Haeb-Umbach. “Robust Speaker Direction Estimation with Particle Filtering.” In <i>IEEE Workshop on Multimedia Signal Processing (MMSP 2004)</i>, 367–70, 2004. <a href=\"https://doi.org/10.1109/MMSP.2004.1436569\">https://doi.org/10.1109/MMSP.2004.1436569</a>.","ieee":"E. Warsitz and R. Haeb-Umbach, “Robust speaker direction estimation with particle filtering,” in <i>IEEE Workshop on Multimedia Signal Processing (MMSP 2004)</i>, 2004, pp. 367–370.","apa":"Warsitz, E., &#38; Haeb-Umbach, R. (2004). Robust speaker direction estimation with particle filtering. In <i>IEEE Workshop on Multimedia Signal Processing (MMSP 2004)</i> (pp. 367–370). <a href=\"https://doi.org/10.1109/MMSP.2004.1436569\">https://doi.org/10.1109/MMSP.2004.1436569</a>","bibtex":"@inproceedings{Warsitz_Haeb-Umbach_2004, title={Robust speaker direction estimation with particle filtering}, DOI={<a href=\"https://doi.org/10.1109/MMSP.2004.1436569\">10.1109/MMSP.2004.1436569</a>}, booktitle={IEEE Workshop on Multimedia Signal Processing (MMSP 2004)}, author={Warsitz, Ernst and Haeb-Umbach, Reinhold}, year={2004}, pages={367–370} }","short":"E. Warsitz, R. Haeb-Umbach, in: IEEE Workshop on Multimedia Signal Processing (MMSP 2004), 2004, pp. 367–370.","mla":"Warsitz, Ernst, and Reinhold Haeb-Umbach. “Robust Speaker Direction Estimation with Particle Filtering.” <i>IEEE Workshop on Multimedia Signal Processing (MMSP 2004)</i>, 2004, pp. 367–70, doi:<a href=\"https://doi.org/10.1109/MMSP.2004.1436569\">10.1109/MMSP.2004.1436569</a>."},"title":"Robust speaker direction estimation with particle filtering","doi":"10.1109/MMSP.2004.1436569","main_file_link":[{"open_access":"1","url":"https://groups.uni-paderborn.de/nt/pubs/2004/WaHa04.pdf"}],"oa":"1","date_updated":"2022-01-06T06:51:12Z","author":[{"first_name":"Ernst","last_name":"Warsitz","full_name":"Warsitz, Ernst"},{"last_name":"Haeb-Umbach","full_name":"Haeb-Umbach, Reinhold","id":"242","first_name":"Reinhold"}],"date_created":"2019-07-12T05:31:01Z","abstract":[{"text":"The paper is concerned with binaural signal processing for a bimodal human-robot interface with hearing and vision. The two microphone signals are processed to obtain an enhanced single-channel input signal for the subsequent speech recognizer and to localize the acoustic source, an important information for establishing a natural human-robot communication. We utilize a robust adaptive algorithm for filter-and-sum beamforming (FSB) and extract speaker direction information from the resulting FIR filter coefficients. Further, particle filtering is applied which conducts a nonlinear Bayesian tracking of speaker movement. Good location accuracy can be achieved even in highly reverberant environments. The results obtained outperform the conventional generalized cross correlation (GCC) method.","lang":"eng"}],"status":"public","publication":"IEEE Workshop on Multimedia Signal Processing (MMSP 2004)","type":"conference","keyword":["bimodal human-robot interface","binaural signal processing","enhanced single-channel input signal","filter-and-sum beamforming","filtering theory","FIR filter coefficient","generalized cross correlation method","microphones","microphone signal","nonlinear Bayesian tracking","particle filtering","robust adaptive algorithm","robust speaker direction estimation","signal processing","speech enhancement","speech recognition","speech recognizer","user interfaces"],"language":[{"iso":"eng"}],"_id":"11931","department":[{"_id":"54"}],"user_id":"44006"}]