@article{16764, author = {{Meyer auf der Heide, Friedhelm}}, issn = {{0004-5411}}, journal = {{Journal of the ACM (JACM)}}, pages = {{740--747}}, title = {{{Fast algorithms for N-dimensional restrictions of hard problems}}}, doi = {{10.1145/44483.44490}}, year = {{1988}}, } @article{16765, author = {{Borodin, Allan and Fich, Faith E. and Meyer auf der Heide, Friedhelm and Upfal, Eli and Wigderson, Avi}}, issn = {{0304-3975}}, journal = {{Theoretical Computer Science}}, pages = {{57--68}}, title = {{{A tradeoff between search and update time for the implicit dictionary problem}}}, doi = {{10.1016/0304-3975(88)90018-7}}, year = {{1988}}, } @inproceedings{16766, author = {{Dietzfelbinger, M. and Karlin, A. and Mehlhorn, K. and Meyer auf der Heide, Friedhelm and Rohnert, H. and Tarjan, R.E.}}, booktitle = {{[Proceedings 1988] 29th Annual Symposium on Foundations of Computer Science}}, isbn = {{0818608773}}, title = {{{Dynamic perfect hashing: upper and lower bounds}}}, doi = {{10.1109/sfcs.1988.21968}}, year = {{1988}}, } @inbook{16767, author = {{Just, Bettina and Mathematik, Fb and Meyer auf der Heide, Friedhelm and Informatik, Fb and Wigderson, Avi}}, booktitle = {{STACS 88}}, isbn = {{9783540188346}}, issn = {{0302-9743}}, title = {{{On computations with integer division}}}, doi = {{10.1007/bfb0035829}}, year = {{1988}}, } @inbook{16768, author = {{Dietzfelbinger, M. and Mehlhorn, K. and Meyer auf der Heide, Friedhelm and Rohnert, H.}}, booktitle = {{SWAT 88}}, isbn = {{9783540194873}}, issn = {{0302-9743}}, title = {{{Upper and lower bounds for the dictionary problem}}}, doi = {{10.1007/3-540-19487-8_24}}, year = {{1988}}, } @inproceedings{16915, author = {{Domik, Gitta}}, booktitle = {{Proceedings of the Computer Science Symposium}}, pages = {{pp. 211--217}}, title = {{{Enhancement Techniques in Digital Image Processing}}}, year = {{1988}}, } @inproceedings{11783, abstract = {{The common basis of coherent and differentially coherent detection is considered from the viewpoint of carrier recovery as the estimation of fading distortion. In the differentially coherent receiver a simple estimate of the fading distortion is used whereas the coherent receiver uses the optimal estimate. The bit error rates (BERs) for M-ary PSK (phase-shift keyed) and DPSK (double phase-shift keyed) transmission are calculated using a single method of calculation for both detection schemes. The calculation takes into account nonperfect carrier recovery, cochannel interference, and diversity. The results allow a direct comparison of the two schemes and show that coherent detection is preferable in many realistic fading environments.}}, author = {{Haeb-Umbach, Reinhold}}, booktitle = {{International Conference on Vehicular Technology, Philadelphia}}, title = {{{A Comparison of Coherent and Differentially Coherent Detection Schemes for Fading Channels}}}, year = {{1988}}, } @inproceedings{11794, abstract = {{A digital carrier recovery structure which allows coherent detection on frequency-nonselective fading channels is presented. The synchronizer estimates the multiplicative distortion introduced by the channel. It is shown that the structure is superior to a phase-locked loop and is well suited for a fully digital realization. A detailed synchronizer design and simulation results are presented for a land-mobile radio channel. This includes a novel scheme for a fully digital frequency offset estimation and correction.}}, author = {{Haeb-Umbach, Reinhold and Meyr, Heinrich}}, booktitle = {{International Conference on Communications, Philadelphia}}, title = {{{A digital Synchronizer for Linearly Modulated Signals Transmitted over a Frequency-Nonselective Fading Channel}}}, year = {{1988}}, } @inproceedings{15320, author = {{Brugel, Edward W and Domik, Gitta and Voels, Stephen A}}, booktitle = {{European Southern Observatory Conference and Workshop Proceedings}}, pages = {{3--8}}, title = {{{A multi-spectral analysis system using large databases.}}}, volume = {{28}}, year = {{1988}}, } @article{15321, author = {{Domik, Gitta and Leberl, Franz and Cimino, J}}, journal = {{International Journal of Remote Sensing}}, number = {{5}}, pages = {{1013--1022}}, publisher = {{Taylor \& Francis}}, title = {{{Dependence of image grey values on topography in SIR-B images}}}, volume = {{9}}, year = {{1988}}, }