| 斜视合成孔径声呐成像研究 |
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| 引用本文： | 刘纪元, 唐劲松, 孙宝申, 张春华, 李启虎. 斜视合成孔径声呐成像研究[J]. 声学学报, 2003, 28(5): 439-442. DOI: 10.15949/j.cnki.0371-0025.2003.05.011 |
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| 作者姓名： | 刘纪元 唐劲松 孙宝申 张春华 李启虎 |
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| 作者单位： | 中国科学院声学研究所,北京,100080;中国科学院声学研究所,北京,100080;中国科学院声学研究所,北京,100080;中国科学院声学研究所,北京,100080;中国科学院声学研究所,北京,100080 |
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| 摘 要： | 在论述斜视合成孔径成像及其进展的基础上,分析了正侧视情况下延时相加的模型及斜视对它的影响,将延时相加法分为“有效孔径处理”和“盲处理”两种实现方法,并提出斜视模式有效孔径计算数学模型。斜视出现时,参与方位向波束形成的有效孔径的定位会出现错误,使图像产生失真。斜视模型可对有效孔径正确定位,从而得到正确的图像。仿真实验及湖试结果验证了模型的有效性。
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| 收稿时间： | 2001-10-19 |
| 修稿时间： | 2002-02-27 |
Study on the imaging of squint synthetic aperture sonar |
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| LIU Jiyuan, TANG Jingsong, SUN Baoshen, ZHANG Chunhua, LI Qihu. Study on the imaging of squint synthetic aperture sonar[J]. ACTA ACUSTICA, 2003, 28(5): 439-442. DOI: 10.15949/j.cnki.0371-0025.2003.05.011 |
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| Authors: | LIU Jiyuan TANG Jingsong SUN Baoshen ZHANG Chunhua LI Qihu |
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| Abstract: | Synthetic aperture imaging with squint mode and its advances are presented, and the imaging of broadside and squint mode on sum-delay algorithm is discussed. Effective aperture processing and blind processing for the sum-delay algorithm are described, and a mathematical model for the calculation of effective aperture is suggested. When squint receiving arrays exist, broadside model can not locate effect aperture correctly, and consequently, a degraded image may occur. The suggested model can correctly locate the effect aperture, and the computer simulations and results from lake experiments validate the method. |
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