| 基于图形处理器的合成孔径声呐实时距离多普勒成像算法 |
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| 引用本文： | 钟何平,唐劲松,张森,张学波,田振.基于图形处理器的合成孔径声呐实时距离多普勒成像算法[J].电子与信息学报,2014,36(8):1899-1904. |
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| 作者姓名： | 钟何平 唐劲松 张森 张学波 田振 |
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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 |
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| 基金项目： | 国家自然科学基金，2110工程建设项目资助课题 |
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| 摘 要： | 该文提出一种基于图形处理器(GPU)的距离多普勒成像算法(RDA)，为合成孔径声呐(SAS)的实时成像提供了新的途径。通过GPU平台上的并行方法进行距离向脉冲压缩、固定相位补偿和方位向脉冲压缩，显著提升了距离多普勒成像算法效率。仿真和实验结果表明:在满足成像分辨率的前提下，该文设计的基于GPU的并行RDA和CPU串行算法相比，加速比可达到22，满足实时SAS成像需求。
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| 关 键 词： | 合成孔径声呐 距离多普勒算法 图形处理器 并行计算 |
| 收稿时间： | 2013-10-16 |
Real-time Range Doppler Algorithm for Synthetic Aperture Sonar Based on Graphic Processing Unit |
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| Zhong He-ping,Tang Jin-song,Zhang Sen,Zhang Xue-bo,Tian Zhen.Real-time Range Doppler Algorithm for Synthetic Aperture Sonar Based on Graphic Processing Unit[J].Journal of Electronics & Information Technology,2014,36(8):1899-1904. |
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| Authors: | Zhong He-ping Tang Jin-song Zhang Sen Zhang Xue-bo Tian Zhen |
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| Abstract: | A Range Doppler imaging Algorithm (RDA) based on Graphic Processing Unit (GPU) is proposed, which is a new method of real-time imaging for Synthetic Aperture Sonar (SAS). The range compression, phase compensation and azimuth compression are implemented in parallel based on GPU device, which increases greatly the efficiency of Range Doppler Algorithm (RDA). The simulation and experimental results show that the GPU- based implementation is faster (up to 22 times) than the CPU-based implementation, which makes it suitable for real-time SAS imaging. |
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| Keywords: | Synthetic Aperture Sonar (SAS) Range Doppler Algorithm (RDA) Graphic Processing Unit (GPU) Parallel computing |
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