星载SAR天线方向图在轨测量技术发展现状与趋势

基金项目:

国家自然科学基金重大项目(60890070)

Current Situation and Development Trend of Inflight Antenna Pattern Measurement Techniques of Spaceborne SAR

(National Key Laboratory of Microwave Imaging Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China)

摘要: 合成孔径雷达(Synthetic Aperture Radar, SAR)天线方向图不确定性是影响SAR 辐射精度的主要误差源，天线方向图在轨测量技术是星载SAR 定标的关键技术之一。该文综述了星载SAR 天线方向图在轨测量技术发展历程，分析了技术发展趋势，并对现有的在轨测量技术进行了分析比较，将为星载SAR 天线方向图在轨测试方案的设计提供重要参考。
- 合成孔径雷达(Synthetic Aperture Radar, SAR) /
- SAR 定标 /
- SAR 天线方向图在轨测量 /
- 地面接收机 /
- 热带雨林
Abstract: The antenna pattern uncertainty is the main error of SAR system. The technique for inflight antenna pattern measurement of spaceborne SAR is one of the most important technique of SAR calibration. This paper discusses the development courses of the inflight antenna pattern measurement of spaceborne SAR, analyses its development trend and compares the main inflight antenna pattern measurement techniques. This paper will be an important reference for designing a project of inflight antenna pattern measurement of spaceborne SAR.
- Synthetic Aperture Radar (SAR) /
- SAR calibration /
- Inflight measurement of spaceborne SAR antenna patterns /
- Ground receiver /
- Rain forest