Part of the Mathematical Sciences Research Institute Publications book series (MSRI, volume 6)
Ambiguity Functions and Group Representations
P.M. Woodward popularized the concept of ambiguity functions in his book ↑Wo←. Ambiguity functions did not yield to the standard theory of Abelian harmonic analysis and though studied by numerical methods their theory has not advanced much since the fundamental work of C. Wilcox ↑Wo←. In recent years, the Wigner transform, a close relative of the ambiguity function, has gained a lot of attention in engineering circles that are concerned with speech and its synthesis and non-intrusive methods for determining fluid flow in the human body. There seem to be three major theoretical problems that are of great interest in this subject:
Find all ambiguity functions;
Develop a theory for sampling ambiguity functions;
Complete Woodward’s program of giving an information theoretic model that includes the ambiguity function.
KeywordsHeisenberg Group Dual Group Ambiguity Function Positive Definite Function Maximal Abelian Subgroup
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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- [H-S]H.M. Helsaker and W. Schempp, “Radar detection, quantum mechanics and nilpotent harmonic analysis,” Preprint.Google Scholar
- [Wi]C.H. Wilcox, “The synthesis problem for radar ambiguity functions,” MRC Technical Report 157 (1960), Mathematics Research Center, U.S. Army, University of Wisconsin.Google Scholar
© Springer-Verlag New York Inc. 1987