基于异值检测及干扰样本归零的调频引信抗扫频干扰方法  

FM Fuze Anti Sweep Interference Based on Heterogeneity Detection and Zero Interference Samples

作　　者：杨瑾[1] 郝新红[1] 周文 钱鹏飞 蔡鑫 YANG Jin;HAO Xinhong;ZHOU Wen;QIAN Pengfei;CAI Xin(Science and Technology on Electromechanical Dynamic Control Laboratory,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]北京理工大学机电动态控制重点实验室,北京100081

出　　处：《探测与控制学报》2023年第5期22-26,共5页Journal of Detection & Control

摘　　要：针对调频引信抗扫频干扰能力不足的问题,提出一种基于异值检测及干扰样本归零的抗干扰方法。通过分析调频扫频干扰下调频引信的失效原理,指出干扰有效部分的长度与相对斜率及滤波器带宽有关,并在时域表现为幅度较大的异常样本,提出通过异值检测与样本归零的方法能有效降低干扰效果,改善距离包络的峰值旁瓣比,为实现精确定距提供可靠依据。通过仿真实验验证了该方法能有效提高调频引信抗扫频干扰的能力。Aiming at the problem that FM fuze has insufficient ability to resist frequency sweeping interference,this paper proposed an anti-jamming method based on outlier detection and zero return of interference samples.By analyzing the failure principle of FM fuze under FM sweep interference,it was pointed out that the length of the effective part of the interference was related to the relative slope and the filter bandwidth,and it was shown as abnormal samples with large amplitude in the time domain.The method of differential processing,outlier detection and sample zeroing could effectively reduce the interference effect,improve the peak sidelobe ratio of the range envelope,and provide a reliable basis for achieving accurate ranging,The simulation results showed that the proposed method could effectively improve the ability of FM fuze to resist frequency sweep interference.

关 键 词：调频引信 扫频干扰 异值检测 距离包络 峰值旁瓣比 

分 类 号：TJ434.1[兵器科学与技术—火炮、自动武器与弹药工程]