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Proceedings Paper

Improving temporal coherence to enhance gain and improve detection performance
Author(s): Ronald A. Wagstaff; Heath E. Rice
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Paper Abstract

Temporal coherence is an important property of many acoustic signals. This paper discusses two fluctuation-based signal processors that improve the temporal coherence of phase and amplitude. Then they exploit the improved coherences to achieve substantial gains, such as, elimination of all noise to achieve exceptionally large "noise-free" automatic detections of temporally coherent signals. Both processors are discussed. One exploits phase fluctuations and the other one exploits amplitude fluctuations. The exploited parameters and signal processors are defined. Results are presented for automatic signal detection of a heavy treaded / tracked vehicle, a helicopter, a fast-boat in shallow coastal water, and a submerged source in the ocean.

Paper Details

Date Published: 16 April 2008
PDF: 10 pages
Proc. SPIE 6963, Unattended Ground, Sea, and Air Sensor Technologies and Applications X, 69630T (16 April 2008); doi: 10.1117/12.777281
Show Author Affiliations
Ronald A. Wagstaff, Univ. of Mississippi (United States)
Heath E. Rice, Univ. of Mississippi (United States)

Published in SPIE Proceedings Vol. 6963:
Unattended Ground, Sea, and Air Sensor Technologies and Applications X
Edward M. Carapezza, Editor(s)

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