西安电子科技大学学报（自然科学版）Issue(3)：1-7,7.DOI:10.3969/j.issn.1001-2400.2014.03.001
一种同轨双基SAR的非线性CS成像算法
Focusing of highly-squinted bistatic SAR using the nonlinear CS algorithm for constant-offset configuration
摘要
Abstract
Focusing on the range variance of the range cell migration ( RCM ) and the second range compression ( SRC) for tandem bistatic SAR with high squinted angles , a nonlinear chirp scaling algorithm ( NCSA) is proposed to handle the problems based on an exact analytical bistatic spectrum . Unlike the chirp scaling ( CS) imaging algorithm which is suitable for the case with small squint angles , not only is the variation with the Doppler frequency considered for the Doppler chirp rate , but also its variation with range is taken into account . The proposed algorithm can compensate the SRC for tandem bistatic SAR well . Satisfactory results are obtained with simulated experiments .关键词
双基地合成孔径雷达/非线性线频调变标成像算法/雷达成像Key words
bistatic synthetic aperture radar/nonlinear chirp-scaling algorithm/radar imaging分类
信息技术与安全科学引用本文复制引用
陈士超,邢孟道,保铮..一种同轨双基SAR的非线性CS成像算法[J].西安电子科技大学学报（自然科学版）,2014,(3):1-7,7.基金项目
国家自然科学基金优秀青年基金资助项目（61222108）；稀疏微波成像信号处理方法研究资助项目（2010CB731903）；“十二五”预研项目 （）
