高速运动空间目标的三维成像

2017 International Workshop on Remote Sensing with Intelligent Processing (RSIP) Pub Date : 2017-05-18 DOI:10.1109/RSIP.2017.7958797

Yu-Xue Sun, Ying Luo, Qun Zhang, Song Zhang

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引用次数: 0

摘要

空间目标的高速运动引起距离像的畸变和偏移，对目标的三维成像产生不利影响。本文提出了一种基于参数稀疏表示的高速运动空间目标三维成像方法。首先，分析了高速对航程轮廓的影响。然后，基于l型三天线干涉系统，建立了三天线回波的动态联合参数稀疏表示模型;通过速度的迭代估计来细化字典矩阵。最后进行干涉处理，得到目标散射体的三维图像。仿真结果验证了该方法的有效性。

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3-D imaging of high-speed moving space target

The high-speed moving of space targets introduces distortion and migration to range profile, which will have a negative effect on three-dimensional (3-D) imaging of targets. In this paper, based on parametric sparse representation, a 3-D imaging method for high-speed moving space target is proposed. First, the impact of high speed on range profile is analyzed. Then, based on L-shaped three-antenna interferometric system, a dynamic joint parametric sparse representation model of echoes from three antennas is established. The dictionary matrix is refined by iterative estimation of velocity. Finally, interferometric processing is conducted to obtain the 3-D image of target scatterers. The simulation results verify the effectiveness of the proposed method.

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来源期刊

2017 International Workshop on Remote Sensing with Intelligent Processing (RSIP)

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