Utilization of shipboard transducers to create single ping three dimensional bathymetry

Describes an experiment utilizing existing shipboard sonar system transducers to obtain along and across track ocean bottom profiles from single return echoes. A short, sparse two dimensional receiving array was formed with sections of both the athwartships hydrophones and alongships projectors, of the vessel´s wide swath SASS bathymetry system. A standard navy BQN-3 transducer, of the ship´s along track profiling system, served as the transmitter. The limited data from the short arrays of 5 elements each were applied to the Burg implementation of a high resolution algorithm and an FFT beamformer for every sample or snapshot. Processed snapshots resulting from a single ping were then combined to form the along and across track profiles