Accession Number:

ADA634335

Title:

Noise Cancellation and Source Localization

Descriptive Note:

Journal article

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

• Collins, Michael D.
• Makris, Nicholas C.
• Fialkowski, Laurie T.

Report Date:

1994-09-01

Pagination or Media Count:

5.0

Abstract:

A noise-canceling processor is developed for matched-field processing problems involving a signal buried in noise. This processor is based on modeling both signal and noise and searching the space of unknown parameters to achieve the best agreement between covariances. The noise-canceling processor reduces to the Bartlett processor in the limit of high signal-to-noise ratio. The examples, illustrate the localization of a source obscured by interference from ambient noise or a second source. The noise-canceling processor is also applied to localize a silent object using scattered ambient noise.

Descriptors:

• *ACOUSTIC DATA
• *AMBIENT NOISE
• BURIED OBJECTS
• COVARIANCE
• NOISE
• SEARCHING

Subject Categories:

• Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE