Hydroacoustic sonar equipment

Details Hydroacoustic sonar equipment Hydroacoustic sonar equipment

G - Physics

01

S

349/25

G01S 7/52 (2006.01) G01S 7/526 (2006.01) G01S 7/529 (2006.01) G01S 15/96 (2006.01)

Patent

CA 1292305

ABSTRACT The invention relates to a hydroacoustic sonar system in which received signals are processed without extensive filtering thereby to conserve higher fourier components of the received signals and so conserve useful information of targets. This is achieved by using a wideband detector module to effect demodulation of the received signals, and so eliminating the usual intermediate frequency stage. The module comprises a wideband input amplifier, a wideband full wave detector and an active low pass filter having a cut off frequency of at least 50 kHz.

602788

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