Near-field source localization with an underwater inflatable sonar co-prime array

Tongdi Zhou; Fauzia Ahmad; Bing Ouyang; Yanjun Li

doi:10.1117/12.2520967

13 May 2019 Near-field source localization with an underwater inflatable sonar co-prime array

Tongdi Zhou, Fauzia Ahmad, Bing Ouyang, Yanjun Li

Proceedings Volume 10989, Big Data: Learning, Analytics, and Applications; 1098905 (2019) https://doi.org/10.1117/12.2520967
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

We present a near-field source localization method for use with a recently proposed inflatable array-based sonar system. The sensing system, known as the Underwater Inflatable Co-prime Sonar Array, can be easily deployed from an unmanned underwater vehicle (UUV), as it can be stored as a folded package with compact stowed dimension. This package can be detached from the UUV and it can morph into its final structural form at the destination. The co-prime sparse array configuration offers the capability to resolve a much higher number of sources as compared to a conventional uniform half-wavelength-spaced array. Using real-data measurements in a water tank with a co-prime array prototype, we demonstrate the capability of the proposed system to localize wideband acoustic sources.

Citation Download Citation

Tongdi Zhou, Fauzia Ahmad, Bing Ouyang, and Yanjun Li "Near-field source localization with an underwater inflatable sonar co-prime array", Proc. SPIE 10989, Big Data: Learning, Analytics, and Applications, 1098905 (13 May 2019); https://doi.org/10.1117/12.2520967

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