A New Encoding Transponders for SAR Calibration

摘要：

A transponder can encode the signal transmitted by synthetic aperture radar (SAR). The reflected signal from the encoding transponder to SAR can be imaged with the background signals suppressed. One type of encoding transponder is to make the linear frequency modulation (LFM) signal transmitted by SAR inverted. To realize this aim, there are the analog mixing method and the digital undersampling method, which is put forward in this paper. The error models of these two methods are studied. Simulation experiments about an input LFM signal are carried out. The results prove that the precision of the digital undersampling method is better than that of the analog mixing method.

关键词： SAR transponder encoding undersampling

作者: Wang Yiding

作者单位: The Graduate University of Chinese Academy of Sciences P.O.Box 3908,Post Code 100049,Beijing,P.R.China

会议类型: 国际会议

会议名称: 首届亚太合成孔径雷达会议(1st Asian and Pacific Conference on Synthetic Aperture Radar Proceedings)

会议地点: 安徽黄山

会议语种:英文

在线出版日期: 2007-11-05（万方平台首次上网日期，不代表论文的发表时间）