Accession Number : ADD004630

Title :   Sonar Alarm System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Rabon,James L

Report Date : 01 Nov 1977

Pagination or Media Count : 9

Abstract : A sonar system is disclosed which processes received sonic energy echo signals 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. (Author)

Descriptors :   *Patents, *Sonar, *Mine detection, Acoustic signals, Echo ranging, Ocean bottom, Search sonar, Underwater mines, Warning systems, Sonar operators

Subject Categories : Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE