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| Study on real-time and parallel implementation of synthetic aperture sonar signal processing |
| Liu Jiyuan; Li Shuqiu; Li Liying; Zhang Chunhua; Li Qihu |
| Institute of Acoustics Chinese Academy of Sciences Beijing 100080 China |
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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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Received: 05 April 2002
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2003, Vol. 25 
