Simultaneous coherent and incoherent processor for sonar signals

Details Simultaneous coherent and incoherent processor for sonar signals Simultaneous coherent and incoherent processor for sonar signals

1987-04-02

1989-05-16

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

36472403, 367 99, G01S 1534

Patent

active

048316024

ABSTRACT:
A receiver for active sonar systems comprises two fundamentally different detection processes operating simultaneously with the output of each detection process being combined by a computer utilizing a computer-aided detection algorithm. One detection processor is a segmented replica correlator (SRC) and the other detection processor is a polarity coincidence correlator (PCC). Each detection processor provides to the active computer-aided detection algorithm a list of ranges and bearings of a relatively small number of detection events. The computer algorithm operates on these events to compare events from the current ping and the previous ping for each of the processors.

REFERENCES:
patent: Re31509 (1984-01-01), Neidell
patent: 3579180 (1971-05-01), Taddeo
patent: 3622963 (1971-11-01), Sage
patent: 3681747 (1972-08-01), Walsh
patent: 3750152 (1973-07-01), Waful
patent: 4330876 (1982-05-01), Johnson
patent: 4404665 (1983-09-01), Kits van Heynigen

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