合成孔径雷达多普勒频谱的盲分裂解法  

Blind Splitting Solution of Doppler Spectrum for Synthetic Aperture Radar

作　　者：许稼[1] 李骏[1] 彭应宁[1] 夏香根 李刚[1] 

机构地区：[1]清华大学电子工程系 [2]Dept of ECE,University of Delaware,Newark,DE19716,USA

出　　处：《电子学报》2005年第6期974-976,共3页Acta Electronica Sinica

基　　金：国家自然科学基金(No.60128102);国防预研基金(No.51407030203JW01)

摘　　要：针对合成孔径雷达中由于多普勒中心偏移和谱宽扩展导致的“频谱分裂”问题,本文提出了一种基于“双门限”处理的频谱盲解分裂方法.基于单个距离单元的采样数据,新方法无需辅助信息便可实现正确的频谱解分裂.仿真性能分析和实际数据验证了新方法的有效性.Due to the width spread and center shifting of the Doppler spectrum, the spectrum splitting phenomena may be drawn in synthetic aperture radar. Based on a proposed double threshold processing, a novel method of blind spectrum splitting is developed. Via a single range unit sampling, the proposed method may correctly realize spectrum splitting without any other auxiliary information. Lastly, simulation experiments and real data are also provided to validate the proposed method.

关 键 词：合成孔径雷达 频谱分裂 双门限处理 频谱盲解分裂 

分 类 号：TN[电子电信]