基于斜视FMCW-SAR的改进距离多普勒算法

2018 12th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2018-12-01 DOI:10.1109/ICSPCS.2018.8631767

Zhuoqun Wang, Yajun Li, Sheng Shao, Shuangshuang Li, Jinguo Xiao, JunQiang Wu

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引用次数: 5

摘要

斜视调频连续波合成孔径雷达(FMCW-SAR)存在相位畸变，相位畸变会影响成像过程。本文建立了斜视FMCW-SAR回波信号模型，分析了斜视引起的相位误差。然后，从实时处理的角度出发，提出了一种改进的基于FMCW-SAR的距离多普勒成像算法。该算法具有计算量小、精度高的特点，适用于实时成像。最后，通过仿真分析验证了算法的可行性和有效性。

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Improved Range Doppler Algorithm Based on Squint FMCW-SAR

There is phase distortion in squint Frequency Modulated Continuous Wave Synthetic Aperture Radar (FMCW-SAR), and the phase distortion may affect the imaging process. In this paper, the echo signal model of squint FMCW-SAR is established, and the phase error caused by squint is analysed. Then in this paper, an improved Range-Doppler (RD) imaging algorithm based on FMCW-SAR is proposed from the point of view of real-time processing. The algorithm has the characteristics of small computation and high precision, and is suitable for real-time imaging. Finally, the feasibility and validity of the algorithm are verified by simulation analysis.

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2018 12th International Conference on Signal Processing and Communication Systems (ICSPCS)

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