Ambiguity Analysis of Deployment Errors in Phased Array Antenna of Spaceborne Synthetic Aperture Radar

CHEN Jie

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Ambiguity Analysis of Deployment Errors in Phased Array Antenna of Spaceborne Synthetic Aperture Radar

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- Ambiguity Analysis of Deployment Errors in Phased Array Antenna of Spaceborne Synthetic Aperture Radar
- Acta Electronica Sinica Vol. 31, Issue S1, Pages: 2026-2030(2003)
- 作者机构：
  
  1. 北京航空航天大学电子信息工程学院,北京,100083
  2. 北京航空航天大学电子信息工程学院,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN957
- Published Online：25 December 2003，
  
  Published：2003
- 稿件说明：
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CHEN Jie. Ambiguity Analysis of Deployment Errors in Phased Array Antenna of Spaceborne Synthetic Aperture Radar[J]. Acta Electronica Sinica, 2003, 31(S1): 2026-2030.
DOI：

CHEN Jie. Ambiguity Analysis of Deployment Errors in Phased Array Antenna of Spaceborne Synthetic Aperture Radar[J]. Acta Electronica Sinica, 2003, 31(S1): 2026-2030. DOI：

摘要

根据星载SAR天线的特点建立了天线展开误差模型

定义了展开不平直度指标

基于成对回波理论推导了存在展开误差条件下天线方向图函数的表达式

推出单频天线展开误差分量与方位模糊度之间统计关系

给出了天线展开误差影响方位模糊度指标的上界.大量的计算机仿真验证了本文分析方法的正确性.

Abstract

The thermal mechanism errors of deployment distortion in phased array antenna of spaceborne Synthetic Aperture Radar (SAR) play an important role in the ambiguity performance analysis.A mathematic model for deployment distortion error is founded according to the characteristics of the phase array antenna on SAR satellite.Based on paired echo theory

the expression of antenna pattern function under deployment distortion errors is obtained.The statistic model of the SAR ambiguity performance analysis with antenna deployment distortion errors is proposed.The ambiguity performance analysis method for deployment distortion errors is presented.The computer simulation results are presented with a L-band space-borne SAR phase array antenna

by which the correctness of the conclusion is validated.

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