Modified algorithm for synthetic aperture sonar

T. Sawa, T. Aoki, M. Nakamura, H. Yoshida, S. Tsukioka, H. Tadahiro, S. Syoujiro, A. Isikawa, T. Kamakura, S. Matusbara, S. Wright

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

Abstract

It is hard to negate the effects of ocean waves on a synthetic aperture sonar that has to operate in the ocean, and many efforts against the ocean waves had been taken. One of the effort is motion compensation by calculating phase errors with computer. But the synthetic aperture algorithm with motion compensation is heavy, and remains difficult to be executed on real time. Thus, modified synthetic aperture algorithm is proposed in this paper. The algorithm, which is named 1.5-Dimensional algorithm, is in between 1-Dimensional and 2-Dimensional algorithm. The algorithm synthesizes an virtual aperture faster than the others, and has no phase error theoretically. The algorithm had been executed with raw sonar data acquired in a sea trial experimentally, and higher quality sonar images are generated successufully.

Original languageEnglish
Title of host publicationOCEANS'08 MTS/IEEE Kobe-Techno-Ocean'08 - Voyage toward the Future, OTO'08
DOIs
Publication statusPublished - Sep 16 2008
Externally publishedYes
EventOCEANS'08 MTS/IEEE Kobe-Techno-Ocean'08 - Voyage toward the Future, OTO'08 - Kobe, Japan
Duration: Apr 9 2008Apr 11 2008

Publication series

NameOCEANS'08 MTS/IEEE Kobe-Techno-Ocean'08 - Voyage toward the Future, OTO'08

Other

OtherOCEANS'08 MTS/IEEE Kobe-Techno-Ocean'08 - Voyage toward the Future, OTO'08
CountryJapan
CityKobe
Period4/9/084/11/08

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All Science Journal Classification (ASJC) codes

  • Computers in Earth Sciences
  • Ocean Engineering
  • Acoustics and Ultrasonics

Cite this

Sawa, T., Aoki, T., Nakamura, M., Yoshida, H., Tsukioka, S., Tadahiro, H., ... Wright, S. (2008). Modified algorithm for synthetic aperture sonar. In OCEANS'08 MTS/IEEE Kobe-Techno-Ocean'08 - Voyage toward the Future, OTO'08 [4530943] (OCEANS'08 MTS/IEEE Kobe-Techno-Ocean'08 - Voyage toward the Future, OTO'08). https://doi.org/10.1109/OCEANSKOBE.2008.4530943