Sonar alarm system

Details Sonar alarm system Sonar alarm system

1976-03-10

1977-11-01

Farley, Richard A.

Communications: electrical

Selective

Monitoring in addition to control

340 3C, G01S 966

Patent

active

040568024

ABSTRACT:
A sonar system is disclosed which processes received sonic energy echo sils in such manner as to determine whether or not a marine mine or other object of significance is laying on a particular area of sea floor being sonically scanned or searched and, in addition, whether or not said marine mine or other object has a sonic energy shadow behind it. If and when such two conditions are met, an alarm is given to the human operator monitoring the subject sonar system, so as to call his attention to the fact that a target of significance has been acquired.

REFERENCES:
patent: 3321737 (1967-05-01), Russell
patent: 3922631 (1975-11-01), Thompson et al.

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