摘要
为提高复合调制无线电引信的抗数字射频存储(DRFM)干扰性能,设计去周期的混沌码与线性调频复合调制无线电引信发射波形,并提出基于相关旁瓣平均的复合调制无线电引信抗干扰方法。针对DRFM干扰特点,复合调制引信发射信号不同调频周期采用不同初值的混沌码调相,实现发射信号波形去周期化设计;在信号处理模块,采用相关旁瓣累计平均方法获得引信输出的统计特征,进一步抑制DRFM干扰对引信的影响。理论分析和仿真结果表明:基于相关旁瓣平均的混沌码与线性调频复合调制引信抗干扰方法能够显著抑制引信相关旁瓣,提高无线电引信的抗DRFM干扰性能。
To enhance the anti-digital radio frequency memory(DRFM)-jamming performance of hybrid modulation continuous waveform detectors,the binary phase-coded chirp waveforms which are aperiodic are designed,and an anti-DRFM-jamming method based on averaging of the range side lobes is proposed.The chaotic codes vary with the linear frequency modulation(LFM)period to make the binary phase-coded chirp waveforms be aperiodic,and the range side lobes are used to suppress the influence of the DRFM.The proposed method is proven to be feasible and effective through numerical simulations.
作者
乔彩霞
郝新红
陈齐乐
孔志杰
王雄武
QIAO Caixia;HAO Xinhong;CHEN Qile;KONG Zhijie;WANG Xiongwu(Science and Technology on Electromechanical Dynamic Control Laboratory, Beijing Institute of Technology, Beijing 100081, China;China Academy of Launch Vehicle Technology, Beijing 100076, China)
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2020年第4期641-648,共8页
Acta Armamentarii
基金
国家自然科学基金项目(61871414)
武器装备预先研究领域基金项目(61406190101)。
关键词
无线电引信
电子对抗
复合调制
数字射频存储
相关旁瓣
radio fuze
electronic countermeasure
hybrid-modulation
digital radio frequency memory
range side lobe
