Accession Number : ADA320435

Title :   Factors Influencing the Design of Long-Range Echo-Ranging Equipment.

Descriptive Note : Interim rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s) : Saxton, H. L.

PDF Url : ADA320435

Report Date : 16 MAY 1949

Pagination or Media Count : 13

Abstract : Advantages of echo ranging in obtaining long detection ranges are pointed out. The mutually independent equipment parameters - - frequency, transducer area,power output, and recognition differential - - are consecutively discussed; and the bases of decisions regarding the choice of these parameters presented. The parameters obtainable for the first equipment are 10-kc frequency, 10-kilowatt power, 3-ft-diameter transducer, and -23 db recognition differential, with 5-kc equipment following as soon as feasible. Conclusions are drawn regarding ranges to be anticipated with the first equipment operating under various water conditions.

Descriptors :   *ECHO RANGING, PARAMETRIC ANALYSIS, SPECIFICATIONS, TARGET RECOGNITION, LONG RANGE(DISTANCE), SONAR.

Subject Categories : Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE