Accession Number : ADP003825

Title :   Air-Path Acoustic Tracking System,

Corporate Author : DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD

Personal Author(s) : Motter,L. E. ; Huminik,D.

Report Date : AUG 1983

Pagination or Media Count : 15

Abstract : A two-dimensional acoustic tracking system has been developed and installed in the Maneuvering and Seakeeping (MASK) Facility at DTNSRDC. The system consists of an acoustic pinger in the vehicle being tracked, eight microphones positioned around the basin and a shoreborne microprocessor. In operation, the acoustic pinger in the vehicle is monitored by the eight microphones and the arrival time of the pulses are fed into the microprocessor. The microprocessor computes the travel time of the pulses, uses the times combined with known frequency propagation characteristics, microphone positions and test facility geometry to determine the position of the vehicle. The X and Y coordinates of the vehicle location can be recorded along with other model data on a digital computer and/or plotted in real time on an X-Y plotter.

Descriptors :   *Ship models, *Acoustic tracking, Pingers, Stroboscopes, Remote control, Model basins, Microprocessors, Microphones, Turning(Maneuvering), Plotters, Position(Location), Travel time, Grids(Coordinates)

Distribution Statement : APPROVED FOR PUBLIC RELEASE