雷达学报Issue(2)：238-239,2.DOI:10.12000/JR14153
视频合成孔径雷达振动误差分析及补偿方案研究
Vibration Error Analysis and Motion Compensation of Video Synthetic Aperture Radar
摘要
Abstract
Video Synthetic Aperture Radar (ViSAR) system offers high imaging frame rate, and high resolution, and it is consequently used to investigate and locate near-moving targets. Compared with microwave SAR, the practical application of ViSAR is restricted by motion compensation caused by short wavelength. Even slight platform vibrations cause significant variations in the phase of echo signal. Thus, it is imperative to analyze the motion compensation and the error of ViSAR. In this study, the results show that imaging is affected less in the direction of flight direction and by low vibration in the direction of the slant range. In contrast, high-frequency vibration in the direction of the slant range requires higher compensation accuracy. Given the particularity of ViSAR’s motion compensation, a compensation scheme is designed to achieve high compensation precision. The effectiveness of the scheme is verified by ViSAR imaging simulation experiments.关键词
合成孔径雷达(SAR)/高帧率/振动误差/运动补偿Key words
Synthetic Aperture Radar (SAR)/High frame rate/Vibration errors/Motion compensation分类
信息技术与安全科学引用本文复制引用
赵雨露,张群英,李超,纪奕才,方广有..视频合成孔径雷达振动误差分析及补偿方案研究[J].雷达学报,2015,(2):238-239,2.基金项目
国家863项目资助课题 （）
