THE OFFSET METHOD OF SONAR RANGING

D. E. Boegeman

Peer Reviewed

Abstract: A significantly improved concept and technique of sonar ranging has been developed by the Deep Tow group of the Marine Physical Laboratory. This OFFSET techniqeu resolves the multiple sweep ambiguity encountered in precision sonar ranging with graphic recorders by the temporaty use of a small relative change of sweep rate. Using the OFFSET techniqeu, high resolution and precision are maintained during teh gross range measurement. These are obtained and displayed permanetly with one recorder. Compared with conventional methods and their limitations, the advantages of OFFSET, as well as its simplicity of operation, make it a worthwhile, easily implemented extension of the graphic recorder. Echo sounding and acoustic transponder data taken at sea substantiate the usefulness and applicability of the OFFSET method to echo sounding and acoustic navigation problems.
Published in: NAVIGATION, Journal of the Institute of Navigation, Volume 17, Number 1
Pages: 47 - 51
Cite this article: Boegeman, D. E., "THE OFFSET METHOD OF SONAR RANGING", NAVIGATION, Journal of The Institute of Navigation, Vol. 17, No. 1, Spring 1970, pp. 47-51.
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