Perturbation stability of various coherent Riesz families

Werner Kozek; Goetz E. Pfander; Georg Zimmermann

doi:10.1117/12.408627

4 December 2000 Perturbation stability of various coherent Riesz families

Werner Kozek, Goetz E. Pfander, Georg Zimmermann

Proceedings Volume 4119, Wavelet Applications in Signal and Image Processing VIII; (2000) https://doi.org/10.1117/12.408627
Event: International Symposium on Optical Science and Technology, 2000, San Diego, CA, United States

Abstract

We compare three types of coherent Riesz families with respect to their perturbation stability under convolution with elements of a family of typical channel functions. This problem is of key relevance in the design of modulation signal sets for digital communication over time-invariant channels. Upper and lower bounds on the orthogonal perturbation are formulate din terms of spectral spread and temporal support of the prototype, and by the approximate design of worst case convolution kernels. Among the considered bases, the Weyl-Heisenberg structure which generates Gabor systems turns out to be optimal.

Citation Download Citation

Werner Kozek, Goetz E. Pfander, and Georg Zimmermann "Perturbation stability of various coherent Riesz families", Proc. SPIE 4119, Wavelet Applications in Signal and Image Processing VIII, (4 December 2000); https://doi.org/10.1117/12.408627

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