NDLI: Code design and performance characterization for code multiplexed imaging

Content Provider	IEEE Xplore Digital Library
Author	Jaffe, J.S. Cassereau, P.M. Glassbrenner, D.J.
Copyright Year	1974
Abstract	A new sonar imaging technique which uses coded waveforms to project different sound signals in different directions has bee proposed. In this context, the problem of creating a set of frequency-hopped code words that have mutually small correlation properties has arisen. The design and performance characterization of frequency-hopped signals for multibeam sonar imaging are discussed. The two special cases considered are the fully coherent case, and the incoherent case when medium perturbations destroy the phase coherence. Two systematic design techniques are presented that are based on elements of the Galois field GF(p), where p is a prime number. One technique uses first-order Reed-Solomon code words in order to generate p code words of length p-1. The other technique is an empirical design technique which generates p-1 code words of length p.<>
Starting Page	1321
Ending Page	1329
Page Count	9
File Size	946402
File Format	PDF
ISSN	00963518
Volume Number	38
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-08-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Acoustic imaging Frequency Sonar equipment Associate members Signal design Galois fields Reed-Solomon codes Sonar applications Pulse shaping methods
Content Type	Text
Resource Type	Article
Subject	Signal Processing

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