Signals and signaling, Submarine, Sonar, Underwater acoustics
In recent years the United States Navy has concentrated most of its Anti-Submarine Warfare (ASW) research and development efforts toward passive sonar. Its ability to locate enemy targets without being detected gives the passive sonar system a supreme strategic advantage over its active counterpart. One aspect of passive sonar signal processing is the time delay estimation of an underwater acoustic wavefront. From this estimation the location and velocity of the radiating source (target) can then be determined. This report compares two popular methods of estimating time delay utilizing computer simulations of each: the cross correlator and the beamformer.
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Harris, Michael G.
Master of Science (M.S.)
College of Engineering
Length of Campus-only Access
Masters Thesis (Open Access)
Montalbano, Frank J., "A Comparison of Two Techniques for Estimating the Travel Time of an Acoustic Wavefront Between Two Receiving Sensors" (1984). Retrospective Theses and Dissertations. 4694.