Radar ambiguity functions, the Heisenberg group, and holomorphic theta series
HTML articles powered by AMS MathViewer
- by Walter Schempp PDF
- Proc. Amer. Math. Soc. 92 (1984), 103-110 Request permission
Abstract:
The concept of linear Schrödinger representation of the real Heisenberg nilpotent group and its various realizations is used to link the theory of radar ambiguity functions with nilpotent harmonic analysis. This group-representation theoretic approach allows us to analyze the radar ambiguity functions simultaneously in time and frequency. Moreover, it allows us to determine the group of all transformations that leave the radar ambiguity surfaces invariant and to specify all admissible envelope functions that belong to radar signals of the same finite energy. In particular, an investigation of the radial, i.e., S0(2, R)-invariant radar ambiguity surfaces, gives rise to an identity for Laguerre-Weber functions of different orders, which implies on its part an identity for holomorphic theta series.References
- Louis Auslander, Lecture notes on nil-theta functions, Regional Conference Series in Mathematics, No. 34, American Mathematical Society, Providence, R.I., 1977. MR 0466409
- Armand Borel and Nolan R. Wallach, Continuous cohomology, discrete subgroups, and representations of reductive groups, Annals of Mathematics Studies, No. 94, Princeton University Press, Princeton, N.J.; University of Tokyo Press, Tokyo, 1980. MR 554917
- Roger Howe, Quantum mechanics and partial differential equations, J. Functional Analysis 38 (1980), no. 2, 188–254. MR 587908, DOI 10.1016/0022-1236(80)90064-6
- David Mumford, Tata lectures on theta. I, Progress in Mathematics, vol. 28, Birkhäuser Boston, Inc., Boston, MA, 1983. With the assistance of C. Musili, M. Nori, E. Previato and M. Stillman. MR 688651, DOI 10.1007/978-1-4899-2843-6
- W. Schempp, Gruppentheoretische Aspekte der Signalübertragung und der kardinalen Interpolationssplines. I, Math. Methods Appl. Sci. 5 (1983), no. 2, 195–215 (German, with English summary). MR 703955, DOI 10.1002/mma.1670050115
- Walter Schempp, Radar ambiguity functions, nilpotent harmonic analysis, and holomorphic theta series, Special functions: group theoretical aspects and applications, Math. Appl., Reidel, Dordrecht, 1984, pp. 217–260. MR 774060 —, Harmonic analysis on the Heisenberg group with applications, Pitman, Boston, Mass. —, The complex Laplace-Beltrami operator, nilpotent harmonic analysis, and holomorphic theta series (to appear). C. H. Wilcox, The synthesis problem for radar ambiguity functions, MRC Tech. Summary Report #157, 1960.
- P. M. Woodward, Probability and information theory, with applications to radar, 2nd ed., Pergamon Press, Oxford-Edinburgh-New York-Paris-Frankfurt, 1964. MR 0180402
Additional Information
- © Copyright 1984 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 92 (1984), 103-110
- MSC: Primary 22E25; Secondary 22E30, 33A75, 43A80, 60G35, 81D05, 94A12
- DOI: https://doi.org/10.1090/S0002-9939-1984-0749901-6
- MathSciNet review: 749901