Any Two N × N Costas Signals Must Have at Least One Common Ambiguity Sidelobe if N > 3—A Proof

Avraham Freedman; Nadav Levanon

doi:10.1109/PROC.1985.13329

Any Two N × N Costas Signals Must Have at Least One Common Ambiguity Sidelobe if N > 3—A Proof

Avraham Freedman
, Nadav Levanon

Department of Electrical Engineering - Systems

Tel Aviv University

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

Costas signals have an ambiguity function that approaches the ideal “Thumbtack” configuration. To increase the main lobe/sidelobe ratio without increasing the number of frequencies (signal dimension, N) it may be possible to stagger Costas signal pulses whose ambiguity sidelobe patterns do not coincide. We prove here that Costas signals of the same dimension, with completely different ambiguity sidelobe patterns, do not exist for N > 3.

Original language	English
Pages (from-to)	1530-1531
Number of pages	2
Journal	Proceedings of the IEEE
Volume	73
Issue number	10
DOIs	https://doi.org/10.1109/PROC.1985.13329
State	Published - Oct 1985

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Any Two N × N Costas Signals Must Have at Least One Common Ambiguity Sidelobe if N > 3—A Proof

Abstract

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