An experimental study on synthetic Aperture Sonar for perturbed array

Hyun Woo Kang, Hee Young Park, Dae Hee Youn, Chungyong Lee, Ki Man Kim, Won Tchon Oh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Synthetic Aperture Sonar is a technique of extending physically limited length of an array through signal processing. SAS method is often used to enhance bearing resolution of a system. Previous techniques assume most of array shapes as linear, so when towed array shapes are distorted, this can create a deviation from actual situation. In this paper, we estimated perturbed array shapes, and compensated distortion of array by using shape information, and then conducted synthetic aperture array method in aperture domain. As experimental data, we used data obtained from linear towed array in neighboring waters of the Korean peninsula. We extended array by compensating differences in time and spatial position between overlapping subarrays by using synthetic aperture array method. In simulation results, we confirmed that the bearing resolution was enhanced.

Original languageEnglish
Title of host publicationOcean '04 - MTS/IEEE Techno-Ocean '04
Subtitle of host publicationBridges across the Oceans - Conference Proceedings
Pages1934-1939
Number of pages6
Publication statusPublished - 2004
EventOcean '04 - MTS/IEEE Techno-Ocean '04: Bridges across the Oceans - Conference Proceedings - Kobe, Japan
Duration: 2004 Nov 92004 Nov 12

Publication series

NameOcean '04 - MTS/IEEE Techno-Ocean '04: Bridges across the Oceans - Conference Proceedings
Volume4

Other

OtherOcean '04 - MTS/IEEE Techno-Ocean '04: Bridges across the Oceans - Conference Proceedings
CountryJapan
CityKobe
Period04/11/904/11/12

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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