中国空间科学技术

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SAR 天线功率方向图误差补偿的新方法

王五兔,漆一宏   

  1. 西安空间无线电技术研究所
  • 发布日期:1997-06-25

A NEW TECHNIQUE TO COMPENSATE FOR ERROR IN SAR ANTENNA POWER RATTERN

Wang Wutu (Xi'an Institute of Space Radio Technology,Xi'an 710000) Qi Yihong John Litva (Communications Research Lab,McMaster University,Canada)   

  • Online:1997-06-25

摘要: 首先提出了一种经济而有效的仅改变激励相位的新方法来补偿SAR天线功率方向图误差;其次讨论了SAR天线在温度载荷作用下的特定的“缓慢变化”的系统变形;然后给出了一些算例以验证方法的有效性;最后给出了一些重要结论。

关键词: 合成孔径天线, 天线方向图, 误差, 补偿, 方法

Abstract: A Cost effective,phase only adjustment technique to compensate for any error in SAR antenna power pattern is first presented,secondly,the particular "slowly varying systematic distortions"of SAR antenna subjected to thermal loads are discussed,and then some examples are taken to test the validity of the compensation technique,finally,some important conclusions are given in this paper.