| 异构环境下的多子阵合成孔径声呐距离多普勒成像算法 |
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| 引用本文： | 钟何平,唐劲松,黄攀.异构环境下的多子阵合成孔径声呐距离多普勒成像算法[J].计算机应用研究,2019,36(2). |
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| 作者姓名： | 钟何平 唐劲松 黄攀 |
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| 作者单位： | 海军工程大学海军水声技术研究所,武汉,430033;海军工程大学海军水声技术研究所,武汉,430033;海军工程大学海军水声技术研究所,武汉,430033 |
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| 基金项目： | 国家自然科学基金资助项目(61671461,41304015);中国博士后科学基金资助项目(2015M582813) |
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| 摘 要： | 为解决多子阵合成孔径声纳成像效率低的问题，提出了一种异构环境下的多子阵合成孔径声纳快速成像方法。根据多子阵合成孔径声纳距离多普勒成像算法特点以及CPU和GPU各自计算特点，通过将算法中距离向脉冲压缩、固定相位补偿、距离徙动校正和方位向脉冲压缩密集型运算采用GPU计算，极大提高了多子阵合成孔径声纳成像效率。最后通过实测数据的成像实验对所提算法的正确性和高效性进行了验证，与串行计算方法相比加速比高达14.45。
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| 关 键 词： | 合成孔径声呐 距离多普勒成像 并行计算 图形处理器 |
| 收稿时间： | 2017/8/15 0:00:00 |
| 修稿时间： | 2018/12/29 0:00:00 |
Range doppler algorithm for multi-array synthetic aperture sonar in heterogeneous environment |
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| Zhong Heping,Tang Jinsong and Huang Pan.Range doppler algorithm for multi-array synthetic aperture sonar in heterogeneous environment[J].Application Research of Computers,2019,36(2). |
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| Authors: | Zhong Heping Tang Jinsong and Huang Pan |
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| Affiliation: | Naval Institute of Underwater Acoustic Technology,Naval University of Engineering,, |
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| Abstract: | Aiming to solving the low efficiency imaging of multi-array synthetic aperture sonar, a fast imaging method for multi-array synthetic aperture sonar in heterogeneous environment is proposed. Considered the range Doppler algorithm characteristic for multi-array synthetic aperture sonar and different calculation features between CPU and GPU, the intensive calculation such as range compression, phase compensation, range cell migration compensation and azimuth compression is implemented on GPU, which greatly enhances the imaging efficiency for multi-array synthetic aperture sonar. In the end, the validity and efficiency of the proposed method are verified through the imaging experiment performed on real data and the speedup is up to 14.45 times compared to the serial algorithm. |
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| Keywords: | synthetic aperture sonar range Doppler algorithm parallel computing GPU |
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