Imaging Study of High Squint SAR Based on FMCW

摘要：

This paper establishes the model of high squint FMCW SAR received signal, analyzes its characteristics, and posts the Doppler frequency shift effect induced by the continuous motion in range direction while radar transmitting and receiving signal. Meanwhile, this paper proposes a Modified RD Algorithm (RDA) aimed at high squint FMCW SAR dechirp-on-receive data, which compensates for range walk in the time domain, Doppler frequency shift and range curve in the frequency domain. Point target simulation verifies the analysis and validity of the proposed algorithm. In addition, for the Doppler frequency shift induced by the continuous motion while radar transmitting and receiving signal, this paper also analyses its effect on image.

关键词： high squint FMCW SAR Doppler frequency shift Modified-RDA

作者: Liang Yi Wang Hongxian Xing Mengdao Bao Zheng

作者单位: National Key Lab.of Radar Signal Processing,Xidian University,Xian,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）