TRANSPONDER WITH UNDERSAMPLING METHOD
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 clutters suppressed. One type of encoding transponder inverts the chirp slope of a linear frequency modulation (LFM) signal transmitted by the SAR. Two methods exist by which the transponder can invert the chirp slope of a LFM signal from the SAR: the analog mixing method and the digital undersampling method. I put forth the latter method in this paper as being the superior approach. I have applied this method in the design of a RadarSat-1 SAR transponder.
SAR transponder undersampling encode
Wang Yiding
College of Information Engineering North China University of Technology Beijing, P.R.China
国际会议
北京
英文
1143-1146
2009-10-27(万方平台首次上网日期,不代表论文的发表时间)