视频合成孔径雷达振动误差分析及补偿方案研究

赵雨露; 张群英; 李超; 纪奕才; 方广有

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

doi: 10.12000/JR14153

1.
(中国科学院电子学研究所电磁辐射与探测技术重点实验室北京 100190)
2.
(中国科学院大学北京 100049)

基金项目:

国家863项目(2013AA8125021A)资助课题

详细信息

作者简介:
赵雨露(1991–)，女，安徽六安人，中国科学院电子学研究所在读硕士生，研究方向为太赫兹合成孔径雷达运动补偿。E-mail:fangxuanxing@163.com 李超(1976–)，男，浙江台州人，中国科学院电子学研究所副研究员，主要研究方向为太赫兹成像技术、微波/太赫兹波段的左手材料设计和计算电磁学等。E-mail:lichao@mail.ie.ac.cn

通讯作者:
张群英qyzhang@mail.ie.ac.cn

Vibration Error Analysis and Motion Compensation of Video Synthetic Aperture Radar

1.
( Key Laboratory of Electromagnetic Radiation and Detection Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)
2.
(Graduate University of Chinese Academy of Sciences, Beijing 100049, China)

摘要: 视频合成孔径雷达(Video Synthetic Aperture Radar, ViSAR)具有成像帧速快、分辨率高等优点,对近距运动目标的精细侦查和定位有迫切应用需求.相比微波段SAR成像系统,ViSAR载波波长短,平台的微小振动会引起回波信号相位的显著变化,常常导致图像无法聚焦,使得ViSAR在实际应用中受到限制,因此有必要开展ViSAR运动误差分析及其补偿技术的研究.该文分析结果表明,载机平台在飞行方向的振动和在斜距方向的低频振动对成像结果影响较小,而在斜距方向的高频振动对成像结果影响较大,要求补偿精度较高.鉴于ViSAR运动补偿的特殊性,该文提出一种运动补偿方案,可以满足ViSAR成像中的补偿精度要求,最后通过ViSAR成像仿真实验初步验证了理论分析的正确性和运动补偿方案的有效性.
- 合成孔径雷达(SAR) /
- 高帧率 /
- 振动误差 /
- 运动补偿
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.
- Synthetic Aperture Radar (SAR) /
- High frame rate /
- Vibration errors /
- Motion compensation

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视频合成孔径雷达振动误差分析及补偿方案研究

doi: 10.12000/JR14153

通讯作者:
张群英qyzhang@mail.ie.ac.cn

Vibration Error Analysis and Motion Compensation of Video Synthetic Aperture Radar

计量

视频合成孔径雷达振动误差分析及补偿方案研究

doi: 10.12000/JR14153

1. (中国科学院电子学研究所电磁辐射与探测技术重点实验室北京 100190)

2. (中国科学院大学北京 100049)

通讯作者: 张群英qyzhang@mail.ie.ac.cn

English Abstract

Vibration Error Analysis and Motion Compensation of Video Synthetic Aperture Radar

1. ( Key Laboratory of Electromagnetic Radiation and Detection Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)

2. (Graduate University of Chinese Academy of Sciences, Beijing 100049, China)

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视频合成孔径雷达振动误差分析及补偿方案研究

doi: 10.12000/JR14153

通讯作者: 张群英qyzhang@mail.ie.ac.cn

Vibration Error Analysis and Motion Compensation of Video Synthetic Aperture Radar

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出版历程

视频合成孔径雷达振动误差分析及补偿方案研究

doi: 10.12000/JR14153

1. (中国科学院电子学研究所电磁辐射与探测技术重点实验室 北京 100190) 2. (中国科学院大学 北京 100049)

通讯作者: 张群英qyzhang@mail.ie.ac.cn

English Abstract

Vibration Error Analysis and Motion Compensation of Video Synthetic Aperture Radar

1. ( Key Laboratory of Electromagnetic Radiation and Detection Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China) 2. (Graduate University of Chinese Academy of Sciences, Beijing 100049, China)

全文HTML

目录

期刊介绍

联系我们

通讯作者:
张群英qyzhang@mail.ie.ac.cn

1. (中国科学院电子学研究所电磁辐射与探测技术重点实验室北京 100190)

2. (中国科学院大学北京 100049)

1. ( Key Laboratory of Electromagnetic Radiation and Detection Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)

2. (Graduate University of Chinese Academy of Sciences, Beijing 100049, China)