电波科学学报2023，Vol.38Issue(6)：972-981,10.DOI:10.12265/j.cjors.2023147
基于相位调制表面角反射器的ISAR图像调制方法
The method of ISAR image modulation based on corner reflector with phase-switched screen
摘要
Abstract
In order to solve the problem of limited protection area and lack of flexibility of passive protection means against inverse synthetic aperture radar(ISAR)imaging reconnaissance,an inverse synthetic aperture radar(ISAR)image modulation method based on phase-switched screen(PSS)corner reflector is proposed.The ISAR imaging characteristics of the mutual-spin corner reflector structure with and without PSS period modulation are analyzed,and the jamming characteristics of the mutual-spin corner reflector structure on ISAR images are revealed.Based on the expansion requirements of jamming area in the distance direction,the spectrum characteristics of PSS bipolar modulation waveform and triangular-stepped phase modulation waveform are analyzed,and different jamming strategies are designed.Simulation experiments are designed to analyze the jamming effect of different modulation signals loaded on the mutual-spin PSS corner reflector structure.The simulation results show that the jamming extent of the mutual-spin corner reflector structure is limited only by its physical size without PSS modulation,and according to different strategies,the jamming extent can be extended to 3-7 times.The simulation results are consistent with the theoretical analysis.This method combines the advantages of active jamming and passive jamming,which means a simple structure,low cost,low exposure and flexible application.With the method,aerial targets equipped with small passive protection devices can countermine ISAR imaging reconnaissance.关键词
相位调制表面(PSS)/角反射器/无源干扰/旋转微动/ISAR干扰Key words
phase-switched screen/corner reflector/passive jamming/rotational micro-motion/ISAR jamming分类
信息技术与安全科学引用本文复制引用
刘思佳,王俊杰,冯德军,崔逸纯,艾夏..基于相位调制表面角反射器的ISAR图像调制方法[J].电波科学学报,2023,38(6):972-981,10.基金项目
国家自然科学基金(62201589) （62201589）
