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星载SAR相控阵天线热变形误差分析

陈杰 周荫清

陈杰, 周荫清. 星载SAR相控阵天线热变形误差分析[J]. 北京航空航天大学学报, 2004, 30(09): 839-843.
引用本文: 陈杰, 周荫清. 星载SAR相控阵天线热变形误差分析[J]. 北京航空航天大学学报, 2004, 30(09): 839-843.
Chen Jie, Zhou Yinqing. Ambiguity performance analysis of spaceborne SAR with thermal mechanism errors in phased array antenna[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(09): 839-843. (in Chinese)
Citation: Chen Jie, Zhou Yinqing. Ambiguity performance analysis of spaceborne SAR with thermal mechanism errors in phased array antenna[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(09): 839-843. (in Chinese)

星载SAR相控阵天线热变形误差分析

基金项目: 国家"863"计划资助项目(2001AA135050);博士后科学基金资助项目(2002031041)
详细信息
  • 中图分类号: TN 957

Ambiguity performance analysis of spaceborne SAR with thermal mechanism errors in phased array antenna

  • 摘要: 根据星载SAR相控阵天线结构特点,建立了天线热变形误差的数学模型,定义了阵面不平整度指标.基于成对回波畸变理论,推导了天线阵面存在热变形误差时的方向图函数表达式,导出了单频热变形误差分量与模糊度之间的统计关系,提出了定量分析星载SAR相控阵天线热变形误差对模糊性能影响的有效方法.基于L波段星载SAR天线进行了计算机仿真,验证了分析方法的正确性.

     

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出版历程
  • 收稿日期:  2003-06-04
  • 刊出日期:  2004-09-30

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