Sea bottom slope compensation apparatus

Details Sea bottom slope compensation apparatus Sea bottom slope compensation apparatus

1980-10-20

1983-09-13

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

364728, 364862, G01S 752, G01S 1502

Patent

active

044046650

ABSTRACT:
A sonar system for the detection of signals reflected from a sloping ocean bed in which a sample of the transmitted signal is modified to correspond to the received signal as modified by the sea bottom before both signals are applied to a correlation detector. Modification of the transmitted signal sample is provided by summing incrementally delayed portions of the transmitted signal sample.

REFERENCES:
patent: 2253975 (1941-08-01), Guanella
patent: 3696414 (1972-10-01), Allen et al.
patent: 3798590 (1974-03-01), Jacobson et al.
patent: 3997973 (1976-12-01), Buss
patent: 4019038 (1977-04-01), Critten et al.
patent: 4207620 (1980-06-01), Morgera
patent: 4255795 (1981-03-01), Hechtenberg
patent: 4287578 (1981-09-01), Heyser

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