Monostatic Projector Synthetic Aperture Sonar.
Patent, Filed 27 Dec 94, patented 13 Aug 96,
DEPARTMENT OF THE NAVY WASHINGTON DC
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A pulsed-transmission, echo ranging sonar system of the side scanning type uses a synthetic aperture to form search beams. The system uses multiple projectors, and a multistatic hydrophone array and a four transmission sequence, each originating at the same location thus permitting a shorter array which can travel twice as fast as conventional systems while achieving grating lobe suppression.