频率捷变调频引信抗DRFM干扰设计  

Anti DRFM Interference Design for Frequency Agile FM Fuze

作　　者：刘金烨 邵渤涵 朱文丽 赵柏钥 钱伟丰 LIU Jinye;SHAO Bohan;ZHU Wenli;ZHAO Baiyue;QIAN Weifeng(System Engineering Research Institute,CSSC,Beijing 100094,China)

机构地区：[1]中国船舶集团系统工程研究院,北京100094

出　　处：《探测与控制学报》2024年第3期17-22,共6页Journal of Detection & Control

摘　　要：针对传统调频引信易被数字射频存储(DRFM)干扰,从引信发射波形去周期化角度出发开展了调频引信抗DRFM干扰方法研究,设计了一种m状态序列编码的频率捷变三角波调频引信抗DRFM干扰总体方案,提出一种补零FFT频谱细化提取谐波时序判决的信号处理方法,根据总体设计方案,完成了频率捷变调频引信样机信号处理系统的硬件电路设计与程序开发。实验结果表明,所设计的频率捷变引信抗DRFM干扰方法可以在保证定距精度的同时大幅提高抗DRFM干扰性能。The modern battlefield environment is becoming increasingly complex,and the digital radio frequency memory(DRFM)transmissive jamming technology posed a severe challenge to the battlefield survival capability of frequency-agile fuzes.Against the background that traditional frequency-agile fuzes were easily jammed by DRFM,the paper started from the aspect of demodulating wave shape periodicity of the fuze to carry out research on anti-DRFM jamming methods for frequency-agile fuzes.A general scheme for frequency-agile fuzes resistant to DRFM jamming was designed,which used m-state sequence encoding.A signal processing method for extracting harmonics by zero-padding FFT spectrum refinement and timing judgment was proposed.According to the overall design plan,the hardware circuit design and program development of the frequency-agile fuze signal processing system were completed.The experimental results showed that the frequency-agile fuze anti-DRFM jamming method designed in the paper could significantly improve the anti-DRFM jamming performance while ensuring the precision of the fuze's interval.

关 键 词：调频引信 跳频参数 数字射频存储干扰 波形设计 频率捷变 

分 类 号：TJ43[兵器科学与技术—火炮、自动武器与弹药工程]