| 合成孔径声纳运动补偿算法的局部优化研究 |
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| 引用本文： | 刘兴华,刘纪元,李淑秋,张春华.合成孔径声纳运动补偿算法的局部优化研究[J].声学技术,2008,27(3):315-318. |
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| 作者姓名： | 刘兴华 刘纪元 李淑秋 张春华 |
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| 作者单位： | 1. 中国科学院声学研究所,北京,100080;中国科学院研究生院,北京,100080
2. 中国科学院声学研究所,北京,100080 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 在合成孔径声纳（Synthetic Aperture Sonar，SAS）的成像处理中，声纳基阵的不稳定是影响成像质量的重要因素，运动误差的存在会直接导致图像的畸变和分辨率下降，在实际的SAS成像中必须考虑运动误差的影响。结合SAS成像的特点，分析了传统运动补偿算法的不足，并提出了针对强点目标的局部优化方案，最后通过仿真和试验数据进行了有效性验证。
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| 关 键 词： | 合成孔径声纳 运动补偿 DPC DPIA |
| 收稿时间： | 2007/6/29 0:00:00 |
| 修稿时间： | 2007/7/31 0:00:00 |
Research on partial optimization of SAS motion compensation |
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| LIU Xing-hu,LIU Ji-yuan,LI Shu-qiu and ZHANG Chun-hua.Research on partial optimization of SAS motion compensation[J].Technical Acoustics,2008,27(3):315-318. |
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| Authors: | LIU Xing-hu LIU Ji-yuan LI Shu-qiu and ZHANG Chun-hua |
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| Affiliation: | LIU Xing-hua, LIU Ji-yuan, LI Shu-qiu, ZHANG Chun-hua (1. Institue of Acoustics, Chinese Academy of Science, Beijing 100080, China; 2. Graduate School of Chinese Academy of Sciences, Beijing 100080, China) |
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| Abstract: | The instabilities of the towfish is has an important effect on the image quality in SAS image processing. The motion errors can distort the images and lower the resolution. So it is very necessary to compensate the motion errors in SAS imaging. Based on the features of SAS imaging model, the traditional motion compensation algorithms are analyzed and an optimized algorithm for strong point target is proposed. The validity of the algorithm is examined through computer simulation and lake-trials data processing. |
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| Keywords: | synthetic aperture sonar motion compensation DPC DPIA |
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