Submitting Campus

Prescott

Department

Physics and Astronomy

Document Type

Article

Publication/Presentation Date

10-2004

Abstract/Description

Criteria necessary to accurately estimate a set of unknown geoacoustic parameters from remote acoustic measurements are developed in order to aid the design of geoacoustic experiments. The approach is to have estimation error fall within a specified design threshold by adjusting controllable quantities such as experimental sample size or signal-to-noise ratio (SNR). This is done by computing conditions on sample size and SNR necessary for any estimate to have a variance that (1) asymptotically attains the Cramer–Rao lower bound (CRLB) and (2) has a CRLB that falls within the specified design error threshold. Applications to narrow band deterministic signals received with additive noise by vertical and horizontal arrays in typical continental shelf waveguides are explored. For typical low-frequency scenarios, necessary SNRs and samples sizes can often approach prohibitively large values when a few or more important geoacoustic parameters are unknown, making it difficult to attain practical design thresholds for allowable estimation error.

Publication Title

The Journal of the Acoustical Society of America

DOI

https://doi.org/10.1121/1.1787526

Publisher

Acoustical Society of America

Additional Information

Dr. Zanolin was not affiliated with Embry-Riddle Aeronautical University at the time this paper was published.

Required Publisher’s Statement

This article was published by The Acoustical Society of America and is available on their website.

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