空天预警研究学报2026，Vol.40Issue(1)：1-7,21,8.DOI:10.3969/j.issn.2097-180X.2026.01.001
聚束模式复杂轨迹BiSAR高效频域成像方法
Efficient frequency-domain imaging method for spotlight-mode BiSAR under complex trajectory
陈天夫 1张廷潇 1马洪斌 1陈勇强 1刘东贺 1陈璇1
作者信息
摘要
Abstract
An efficient frequency-domain imaging method is presented to resolve the echo spectrum aliasing and high-order Doppler spatial variance problem in spotlight-mode bistatic synthetic aperture radar(SAR)imag-ing under complex trajectory.This method first employs two-dimensional decoupling processing based on de-skewing operation to achieves signal decoupling and spectral aliasing elimination,and then introduces high-or-der nonlinear chirp scaling technique based on Doppler centroid expansion to effectively compensate the nonlin-ear phase errors caused by high-order spatial variations.The simulation results show that the proposed method achieves precise focusing imaging of the full scene of spotlight-mode bistatic SAR imaging under complex trajec-tory while significantly improving the processing efficiency.关键词
双基合成孔径雷达/聚束模式/复杂轨迹/空变性/非线性变标/多普勒质心Key words
bistatic synthetic aperture radar(BiSAR)/spotlight mode/complex trajectory/spatial variance/nonlinear chirp scaling/Doppler centroid分类
信息技术与安全科学引用本文复制引用
陈天夫,张廷潇,马洪斌,陈勇强,刘东贺,陈璇..聚束模式复杂轨迹BiSAR高效频域成像方法[J].空天预警研究学报,2026,40(1):1-7,21,8.
