Pseudo-random noise generated target simulator

Details Pseudo-random noise generated target simulator Pseudo-random noise generated target simulator

1981-05-26

1983-06-07

Farley, Richard A.

Education and demonstration

Detection or range determination of distant object by...

Sonar

367 1, 367137, G01S 752

Patent

active

043869130

ABSTRACT:
A target simulator tests the characteristics of a multi-element array witt the use of large memories and long delay line storage. The simulator includes a master clock which provides the count frequency to a binary counter. The reading of the binary counter is compared in a comparator with a stored number in a sequence from a programmable readable memory (PROM). On agreement the comparator feeds an output to an appropriate member of a group of hydrophone counters. Upon receipt of the signal from the comparator the counter provides a signal to the PROM. The PROM then provides its next synchronizing binary number to the comparator. The hydrophone counter also provides a signal to the channel selector reset which resets an appropriate pseudo-random noise generator (PRNG) to produce an output of the target simulator.

REFERENCES:
patent: 2910586 (1959-10-01), Kohler
patent: 3700780 (1972-10-01), Roeschlein
patent: 3916533 (1975-11-01), Kijesky
patent: 4049953 (1977-09-01), Evans, Jr.

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