Abstract: A technique is presented for extraction of ocean wave directional spectra using Doppler side-scan sonars. Two 103-kHz steerable side-scan beams from a freely drifting subsurface platform are used to estimate horizontal ...

Abstract: A new method for measurement of the directional spectra of surface gravity (water) waves is presented here. Measurements are made at a single point by orthogonally mounted seismometers buried 0.5 meters below the seabed ...

Abstract: Pinkel and Smith have recently suggested the use of repeat-sequence coded pulses to increase the time-bandwidth product for single-ping incoherent Doppler velocity measurements with sidescan sonars. Comparisons between ...

Abstract: A new technique is presented for extraction of ocean wave directional spectra using steerable Doppler side-scan sonars. The method is designed for use from a subsurface platform at the 25-m depth. Two 360° steerable side-scan ...