电讯技术Issue(2)：140-144,5.DOI:10.3969/j.issn.1001-893x.2016.02.005
利用多转发器直播卫星信号的外辐射源目标探测技术
Target Detection Technology Based on Signals of Multiple Transponders on Broadcasting Satellite
摘要
Abstract
According to the characteristic of the real signal from a broadcasting satellite,the maximum de-tection distance and the influence of the walking range and spreading frequency on target detection are ana-lyzed. The feasibility of the target detection method is proved by the real satellite signal experiment. The coherent accumulation algorithm based on signals of multiple transponders on broadcasting satellite is put forward. The principle of the coherent accumulation algorithm is introduced. Finally,the coherent accumu-lation algorithm based on two-dimension interpolation to the ambiguity is derived and simulated. The simu-lation results prove that the signal-to-noise ratio( SNR) can be improved 8 dB while achieving coherent accumulation by the signals of 7 multiple transponders.关键词
外辐射源雷达/目标探测/直播卫星/多转发器/相参积累Key words
passive radar/target detection/broadcasting satellite/multiple transponders/coherent accumulation分类
信息技术与安全科学引用本文复制引用
于钦添,彭华峰,孙正波,吴永强..利用多转发器直播卫星信号的外辐射源目标探测技术[J].电讯技术,2016,(2):140-144,5.基金项目
国家自然科学基金资助项目(61172140)Foundation Item:The National Natural Science Foundation of China(No.61172140) （61172140）
