Study on real-time and parallel implementation of synthetic aperture sonar signal processing

Liu Jiyuan; Li Shuqiu; Li Liying; Zhang Chunhua; Li Qihu

Volume 25 Issue 6

Jun. 2003

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Article Navigation > Journal of Electronics & Information Technology > 2003 > 25(6): 777-783

Liu Jiyuan, Li Shuqiu, Li Liying, Zhang Chunhua, Li Qihu. Study on real-time and parallel implementation of synthetic aperture sonar signal processing[J]. Journal of Electronics & Information Technology, 2003, 25(6): 777-783.

Citation:

Liu Jiyuan, Li Shuqiu, Li Liying, Zhang Chunhua, Li Qihu. Study on real-time and parallel implementation of synthetic aperture sonar signal processing[J]. Journal of Electronics & Information Technology, 2003, 25(6): 777-783.

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Study on real-time and parallel implementation of synthetic aperture sonar signal processing

Received Date: 2002-04-05
Rev Recd Date: 2002-09-30
Publish Date: 2003-06-19

Abstract

Abstract

Reconstruction algorithms for Synthetic Aperture Sonar (SAS) are discussed, and choice of SAS parameters and parallel structures are studied in this paper. A SHARC-based real-time processing system for SAS imaging is presented. Two pipelines are used in the system. The first pipeline makes full use of pulse repetition interval and proceed data sequentially, and the second one focuses image data in frame. Therefore, SAS image is reconstructed with only one stage time-consumption though two stages are used. Moreover, parallel processing are used in both stages to meet real-time requirement.

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References

M.P. Hayes, P. T. Gough, Broad-band synthetic aperture sonar, IEEE J. of Oceanic Engineering, 1992, 17(1), 80-94.[2]P.T. Gough, D. W. Hawkins, Imaging algorithms for a strip-map synthetic aperture sonar: minimizing the effects of aperture errors and aperture undersampling, IEEE J. of Oceanic Engineering, 1997, 22(1), 27-39.[3]A.E. Adams, M. A. Lawlor, V. S. Riyait, O. R. Hinton, B. S. Sharif, Real-time synthetic aperture sonar processing, IEE Proc.-Radar, Sonar and Navigation, 1996, 143(3), 169-175.[4]V.S. Riyait, M. A. Lawlor, A. E. Adams, O. H. Hinton, B. Sharif, Real-time synthetic aperture sonar imaging using a parallel architecture, IEEE Trans. on Image Processing, 1995, IP-4(7),1010-1019.

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