Summary of Signal Processing Techniques for Conformal/Planar Array Sonar System.
GENERAL ELECTRIC CO SYRACUSE N Y HEAVY MILITARY ELECTRONIC SYSTEMS
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A previous report entitled The First Cut Signal Processor for ConformalPlanar Array Sonar System, in which a feasible signal processing sub-system for the CPAS System was recommended, contains much of the background material for the work reported here. In the course of this work various techniques were studied under the requirements imposed by the CPAS System concept. It was deemed appropriate to review the technique studies that were previously made and to determine their range of applicability in terms of signal bandwidth and number of beams to be processed. Therefore, the purpose of the work reported here is to 1 Review the technique studies previously conducted to determine feasibility of these techniques for various combinations of signal bandwidth and number of beams. Specifically, bandwidths in the range of 50 to 200 cps for the wideband signals, 1 to 4 cps for the narrow band signal, and number of beams in the range of 100 to 1000 were assumed. 2 Extend the studies previously conducted to include cost and size estimates for hardware implementations of the First Cut Signal Processing Sub-System, as well as for other techniques studied, as a function of signal bandwidth and number of beams. 3 Identify critical components of the most promising techniques which require further detailed study andor laboratory breadboard work in order to raise confidence level for application to the CPAS System. Section II contains a summary of the important features of the signal processing techniques which have been studied to date as well as a table showing requirements under which studies were made.
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