CPC G01S 15/8902 (2013.01) [G01S 7/52003 (2013.01); G01S 7/534 (2013.01); G01S 15/32 (2013.01); G01S 15/325 (2013.01); G01S 15/586 (2013.01); G01S 15/89 (2013.01)] | 24 Claims |
1. A sonar data compression system comprising:
plural projectors excited at time to for ensonifying a particular geometric space wherein multiple ones of the projectors emit acoustic signals whose frequency and phase do not vary independently from each other;
echoes from the geometric space received on plural hydrophones at each of plural times t1, t2 . . . ;
receive beamformers that form at one or more times tx Q beams with respective angles of arrival;
each of the Q beams associated with a magnitude Mtx,i is indexed by time tx and beam number i; and,
at each time tx a beam with a largest magnitude (Mtx,i)max1 is identified as a characterizing beam;
wherein data associated with these characterizing beams are used as a compressed characterization of the ensonified space.
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