On the Relationship between Satellite Attitude Stability And Spaceborne SAR Imaging Qualities

CHEN Jie; ZHOU Yin-qing; LI Chun-sheng

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On the Relationship between Satellite Attitude Stability And Spaceborne SAR Imaging Qualities

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- On the Relationship between Satellite Attitude Stability And Spaceborne SAR Imaging Qualities
- Acta Electronica Sinica Vol. 29, Issue S1, Pages: 1785-1789(2001)
- 作者机构：
  
  北京航空航天大学电子工程系,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN957
- Published：2001
- 稿件说明：
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CHEN Jie, ZHOU Yin-qing, LI Chun-sheng. On the Relationship between Satellite Attitude Stability And Spaceborne SAR Imaging Qualities[J]. Acta Electronica Sinica, 2001, 29(S1): 1785-1789.
DOI：

CHEN Jie, ZHOU Yin-qing, LI Chun-sheng. On the Relationship between Satellite Attitude Stability And Spaceborne SAR Imaging Qualities[J]. Acta Electronica Sinica, 2001, 29(S1): 1785-1789. DOI：

摘要

姿态指向稳定度是合成孔径雷达(SAR)卫星平台设计的重要参数.本文基于成对回波畸变理论研究了存在姿态指向变化时星载SAR的点目标扩展函数表达式

在理论分析与大量计算机仿真实验基础上

总结了姿态指向变化对星载SAR图像质量影响的本质规律

推导了工程上分析卫星姿态指向稳定度同SAR图像质量之间定量关系的解析表达式

提出了适用于SAR卫星特点的姿态指向稳定度定量分析方法

为SAR卫星系统总体分析与设计提供了理论依据.根据L、C和X波段SAR卫星参数进行计算机仿真实验

验证了结论的正确性.

Abstract

Attitude stability is a very important parameter for the platform design of Synthetic Aperture Radar(SAR) satellite. The mathematical expression of spaceborne SAR impulse response function with attitude jitter is studied using paired echo theory.The effect of attitude jitter on spaceborne SAR image qualities is summarized based on the theoretical analysis and computer simulation.The analytical mathematical expression is deduced

which is useful in analysis of attitude stability and SAR image qualities.A method for quantificationally analyzing attitude stability is proposed in this paper basing on the characteristics of SAR satellite.The conclusion is validated by large quantities of computer simulation according to the L

C and X-band SAR satellite parameters.It provides theoretical foundation for SAR satellite system analysis and design.

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Related Institution

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

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