Spatial Matched Processing for Multipath Propagation.
Abstract
Underwater acoustic propagation is characterized by multipath or multimode propagation. Ray theory and mode theory are not fully adequate for modeling physical reality. Impulses responses can be more accurately calculated using Gaussian beam theory. Signal processors can be designed to take advantage of the channel complexity if the propagation is actually known so that detectability is increased. The proposed technique, channel matched filtering, synthetically backpropagates the wave front to a hypothesized source location. Accurate passive estimates can be made without knowledge of signal characteristics. GB theory can easily accommodate a range-dependent deep water environment. Keywords include: Signal processing, Underwater acoustic propagation, and Channel matched filtering.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 16, 1987
- Accession Number
- ADA189790
Entities
People
- Matthew A. Dzieciuch
- T. G. Birdsall
Organizations
- University of Michigan