Unambiguous Reconstruction and Imaging of Nonuniform Sampling SAR Signals

摘要：

Nonuniform sample of SAR signal will bring the noise into the signals, and thus mix the spectrum of the echo signals with that of the noises, increase ambiguity of the signals, and depress the SAR imaging quality. In wide swath SAR mode, the multi-channel receivers are used in azimuth, the nonuniform sampling will be met, This paper analyzes in detail analysis the unambiguous spectrum reconstruction of the nonuniform sampling SAR signals and multi-channel SAR imaging; Based on the difference and correlation between the multi-channels signals and single channel signal, we resolve the multi-channels SAR imaging, the simulate results prove that the theoretic analysis is correct.

关键词： Non-uniform sample Multi-channels Frequency spectrum Azimuth ambiguity SAR.

作者: Liu Guangyan Wang youlin Lin Youquan

作者单位: Nanjing Research Institute of Electronic and Technology.Nanjing,China 210013

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）