Analysis of Motion Compensation for FMCW Synthetic Aperture Radar

JIA Gao-wei; CHANG Wen-ge

doi:10.3969/j.issn.0372-2112.2013.09.001

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Analysis of Motion Compensation for FMCW Synthetic Aperture Radar

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- Analysis of Motion Compensation for FMCW Synthetic Aperture Radar
- Acta Electronica Sinica Vol. 41, Issue 9, Pages: 1665-1671(2013)
- 作者机构：
  
  国防科技大学电子科学与工程学院,湖南,长沙,410073
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China (No.61072116)
- DOI：10.3969/j.issn.0372-2112.2013.09.001
  CLC： TN957
- Published：2013
- 稿件说明：
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JIA Gao-wei, CHANG Wen-ge. Analysis of Motion Compensation for FMCW Synthetic Aperture Radar[J]. Acta Electronica Sinica, 2013, 41(9): 1665-1671.
DOI：

JIA Gao-wei, CHANG Wen-ge. Analysis of Motion Compensation for FMCW Synthetic Aperture Radar[J]. Acta Electronica Sinica, 2013, 41(9): 1665-1671. DOI： 10.3969/j.issn.0372-2112.2013.09.001.

摘要

调频连续波(Frequency Modulated Continuous Wave

FMCW)技术与合成孔径雷达(Synthetic Aperture Radar

SAR)技术的结合

促进了小型化、低成本、低功耗、高分辨率成像传感器的发展.本文建立了非理想情况下FMCW SAR的回波信号模型

分析了FMCW SAR运动补偿处理同脉冲体制SAR的区别;提出了完整的三维误差补偿流程

并分别论证了前向运动误差及沿视线方向(Line of Sight

LOS)方向运动补偿处理方法;文中最后采用FMCW SAR实测数据对所提处理流程进行了验证.

Abstract

The combination of frequency modulated continuous wave(FMCW)and synthetic aperture radar(SAR)leads to the rapid development of the compact

low-cost

low power imaging sensors.The model of imaging in the presence of motion error is presented firstly

based on which the difference of motion compensation between FMCW SAR and pulsed SAR is compared.The integrated processing flow of motion compensation is proposed

contains the compensation along track and in the line of sight.The experimental FMCW SAR data and focused SAR images verify the feasibility of the proposed method.

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