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Optimum Costas-like decompositions of Costas arrays for channel characterization and communications

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2 Author(s)
S. K. Mehta ; Naval Underwater Warfare Center, New London, CT, USA ; E. L. Titlebaum

In the paper we show that any subset or decomposition of Costas arrays are themselves non-full Costas arrays with ideal auto-, and cross-ambiguity and multiple access properties. The decomposed waveform's “thumbtrack” like auto-ambiguity functions, and their low cross-ambiguity or mutual interference would make them applicable in various multiple access and/or communication systems. The original Costas array and its subsets can be used individually in a matched filter receiver. Also for the single transmitted Costas array we can obtain several channel responses by generating and using several different subsets. The post processing can combine them in a semi-coherent processing scheme or as abutted waveforms for new techniques which require two waveform to provide enhanced range-Doppler resolution and reverberation rejection

Published in:

Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on  (Volume:ii )

Date of Conference:

19-22 Apr 1994