A Novel Method of Motion Compensation for Airborne High Squint Synthetic Aperture Radar

ZHOU Feng; WAN Qi; XING Meng-dao; BAO Zheng

您当前的位置：

首页 >

文章列表页 >

A Novel Method of Motion Compensation for Airborne High Squint Synthetic Aperture Radar

更新时间：2025-07-16

- A Novel Method of Motion Compensation for Airborne High Squint Synthetic Aperture Radar
- Acta Electronica Sinica Vol. 35, Issue 3, Pages: 463-468(2007)
- 作者机构：
  
  西安电子科技大学雷达信号处理重点实验室,陕西,西安,710071
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN957
- Published：2007
- 稿件说明：
移动端阅览
ZHOU Feng, WAN Qi, XING Meng-dao, et al. A Novel Method of Motion Compensation for Airborne High Squint Synthetic Aperture Radar[J]. Acta Electronica Sinica, 2007, 35(3): 463-468.
DOI：

ZHOU Feng, WAN Qi, XING Meng-dao, et al. A Novel Method of Motion Compensation for Airborne High Squint Synthetic Aperture Radar[J]. Acta Electronica Sinica, 2007, 35(3): 463-468. DOI：

摘要

大斜视合成孔径雷达(SAR)成像要求较长的合成孔径

这样载机的不平稳性对其影响较大

如何对大斜视SAR进行运动补偿是实现大斜视成像的关键.本文根据大斜视SAR成像的几何模型

推导出大斜视SAR的瞬时多普勒调频率表达式

并利用从数据中估计得到的多普勒调频率和运动平台的惯导参数来分离和估计运动误差的空间分量

然后利用所得的运动误差对大斜视SAR数据进行包络和相位的运动误差校正.本文所提出的大斜视SAR运动补偿方法能和大斜视SAR成像算法很好地结合

并且仿真和实测数据的成像结果验证了该方法的有效性.

Abstract

Long synthetic aperture is required in high squint SAR imaging

which is severely influenced by the nonstationarity of airplanes.Therefore

motion compensation is crucial in high squint SAR data processing.A motion compensation approach integrated with the imaging algorithm is proposed.Firstly

the expression of instantaneous Doppler chirp rate is given according to the image geometry model of high squint SAR.Then

the components of motion errors are separated and estimated

using the Doppler chirp rate estimated from measured data and the parameters of inertia navigation system (INS).After that

the envelope and phase corrections are performed in high squint SAR data through the obtained motion errors.The effectiveness of the proposed approach can be verified by the imaging results of simulation data and measured data.

关键词

Keywords

references

Views

1499

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

A Method of Motion Compensation for Unmanned Aerial Vehicles Borne SAR

Motion Compensation Optimization Method for 3D Multi-Object Tracking

Video Compressed Sensing Reconstruction Network Based on Temporal-Attention Feature Alignment

Error Concealment for Frame Losses in MVD Video Using Saliency

High Squint DBS Imaging Based on Constant Acceleration Movement Platform

Related Author

ZHOU Feng

BAO Zheng

WANG Shun-hong

ZHANG Yu

SHEN Jiang-nan

JI Jian-min

ZHANG Yan-yong

WEI Zhi-chao

Related Institution

School of Computer Science and Technology， University of Science and Technology of China

School of Electronic and Information Engineering, South China University of Technology

School of Telecommunication Engineering, Hangzhou Dianzi University

School of Electric Science and Engineering,National University of Defense Technology

ATR Laboratory,National University of Defense Technology

⁰