Accession Number : AD0781639
Title : Stereoscopic Mapping of the Seafloor by a Towed Two-Fish Side-Scan Sonar System.
Descriptive Note : Technical rept.,
Corporate Author : CIVIL ENGINEERING LAB (NAVY) PORT HUENEME CALIF
Personal Author(s) : Hitchcock,R. D.
Report Date : JUN 1974
Pagination or Media Count : 27
Abstract : Sea trials were conducted to test the concept of constructing a seafloor contour map by interfacing a manual stereo-sonar plotter with a digital computer. The at-sea work used a pair of 100-kHz, side-scan, sonar fish towed at a lateral separation of 42 feet. Real-time data on near-bottom scanning contained mutual interference effects which prevented the stereoscopic fusing of corresponding sonar images. System component errors were obtainable with repeated scannings of an artificial target array. (Modified author abstract)
Descriptors : *Ocean bottom topography, *Stereophotography, *Mapping, Side looking sonar, Scanning sonar, Stereoscopic map plotters, Signal processing, Computer programs, FORTRAN, Least squares method
Subject Categories : Cartography and Aerial Photography
Physical and Dynamic Oceanography
Distribution Statement : APPROVED FOR PUBLIC RELEASE