Synthetic aperture sonar: An evolving technology

From: Sea Technology | Date: June 1, 1999| Author: | Copyright information

Radar Technology Used Underwater for Mine Hunting and Unexploded-Ordnance Location

Raytheon Systems Co. (RSC) and Dynamics Technology Inc. (DTI) have demonstrated that the synthetic aperture developed for radar can be used to improve underwater sonar images. Synthetic aperture sonar (SAS) technology uses the forward motion of a small physical array to synthesize a much larger array. The long synthesized array produces a much higher along-track resolution and signal-to-noise ratio (contrast) than that of the physical array alone. Using SAS technology, the alongtrack resolution can be made ...

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