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Digital beamsteering for a parametric scanning sonar system










Image Number 3 for United States Patent #4190818.

Digital beamsteering for a parametric scanning sonar steers a nonlinear, ulated signal of a single high frequency by appropriately delaying and/or varying the phase of the signal as it enters each of a plurality of elements in an array. The sonar beam can be steered electronically over a wide range of angles.








 
 
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