Accession Number : ADA262761


Title :   Depth Dependence of the Single and Triple Traversal Correlation Trace.


Descriptive Note : Technical rept.


Corporate Author : TEXAS UNIV AT AUSTIN APPLIED RESEARCH LABS


Personal Author(s) : Miller, Elizabeth L ; Westwood, Evan K


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a262761.pdf


Report Date : 24 Nov 1992


Pagination or Media Count : 35


Abstract : Experimental evidence of the dependence on source depth of a particular correlation trace measured at near-bottom sensors in deep water is presented. The depth-dependent trace is produced by eigenrays having one and three ocean traversals, i.e., the direct path and the first bottom-bounce rays. A 65-95 Hz pseudo-random noise source towed at 100 m depth during the TAGEX87 experiment is used to examine the correlation trace for submerged sources, while the tow ship itself is used for surface sources. Ray model simulations accurately predict the change in the correlation traces as a function of source depth.


Descriptors :   *SHIP NOISE , *ACOUSTIC WAVES , *HYDROPHONES , *TOWED SONAR , *UNDERWATER TRACKING , SIMULATION , PATHS , ANGLE OF ARRIVAL , RAY TRACING , ACOUSTIC DATA , TOWING VEHICLES , DEEP WATER , ACOUSTIC VELOCITY , DEPTH , CORRELATION , BEAM FORMING , ACOUSTIC ARRAYS , ACOUSTIC FILTERS


Subject Categories : Acoustic Detection and Detectors


Distribution Statement : APPROVED FOR PUBLIC RELEASE