In place calibration of sonar receive array

Details In place calibration of sonar receive array In place calibration of sonar receive array

G - Physics

01

S

G01S 7/52 (2006.01)

Patent

CA 2319633

The invention pertains to sonar receive arrays. More particularly, the invention pertains to a process for calibrating the amplitude, position and phase angle of an array of underwater receive hydrophones with respect to one another. The process requires projecting an acoustic test signal at a known frequency from a towed underwater acoustic projector toward an array of towed, underwater, interconnected, receive hydrophones; detecting and determining the response of the receive hydrophones to said test signal by signal processing means; and calibrating at least one parameter for the operation of the receive hydrophones resulting from the response. Calibrated parameters include the amplitude, position and phase angle of the receive hydrophones relative to one another.

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