The Effects of Towfish Motion on Sidescan Sonar Images
MATERIALS RESEARCH LABS ASCOT VALE (AUSTRALIA)
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A simulation algorithm to estimate the geometrical effects of towfish motions on sidescan sonar images is described. The results of simulations using the algorithm are discussed, and bounds for acceptable amplitudes of towfish motions are estimated. Yaw is found to be the most potentially damaging towfish motion, and a sinusoidal yaw motion with amplitude 0.5 deg and period 3 s is found to induce unacceptable distortion of a towfish image. The effects of towfish motions on the coverage of the seabed are also discussed.
- Marine Engineering
- Acoustic Detection and Detectors