北京航空航天大学学报 ›› 2017, Vol. 43 ›› Issue (10): 2163-2170.doi: 10.13700/j.bh.1001-5965.2016.0829

• 论文 • 上一篇    下一篇

调频多普勒引信抗调幅干扰性能分析

左环宇, 郝新红, 岳凯   

  1. 北京理工大学 机电学院, 北京 100081
  • 收稿日期:2016-10-26 修回日期:2017-01-20 出版日期:2017-10-20 发布日期:2017-04-07
  • 通讯作者: 郝新红 E-mail:haoxinhong@bit.edu.cn
  • 作者简介:左环宇,男,硕士研究生。主要研究方向:无线电引信信号处理;郝新红,女,博士,副教授,博士生导师。主要研究方向:无线电探测与信号处理、信息感知与对抗技术;岳凯,男,博士研究生。主要研究方向:无线电引信及其对抗技术。
  • 基金资助:
    国防“973”计划(613196)

Anti-AM jamming performance analysis of FM Doppler fuze

ZUO Huanyu, HAO Xinhong, YUE Kai   

  1. School of Mechatronical Engineering, Beijing Institute of Technology, Beijing 100081, China
  • Received:2016-10-26 Revised:2017-01-20 Online:2017-10-20 Published:2017-04-07

摘要: 为提高调频多普勒引信抗调幅干扰性能,定量研究了调幅干扰对其作用机理,以信干比(SJR)增益作为表征参量定量研究了不同调幅干扰作用下调频多普勒引信的抗干扰性能。详细推导了正弦波调幅、方波调幅和三角波调幅干扰作用下调频多普勒引信的信干比增益,并对其进行了仿真验证。定量分析、仿真与引信实验测试结果表明:在调幅干扰下调频多普勒引信总信干比增益在10 dB量级;调频多普勒引信抗各种调制样式调幅干扰能力相当,对调幅干扰调制样式不敏感;调幅指数对调频多普勒引信抗干扰性能基本无影响;减小多普勒滤波器带宽可以一定程度提高调频多普勒引信系统抗干扰性能。

关键词: 调频多普勒引信, 调幅干扰, 抗干扰, 信干比(SJR)增益, 多普勒滤波器, 仿真

Abstract: To improve the anti-AM jamming performance of FM Doppler fuze, the AM jamming mechanism was quantitatively studied, and the anti-jamming performance of FM Doppler fuze under different AM jamming was quantitatively studied with signal to jamming ratio (SJR) gain as descriptive parameter. The SJR gains of FM Doppler fuze in the environment of sine wave AM jamming, square wave AM jamming and triangle wave AM jamming were deduced in detail and verified by simulation. Quantitative analysis, simulation and experimental results indicate that the total SJR gain of FM Doppler fuze is at 10 dB under AM jamming; anti-AM jamming performance of FM Doppler fuze is not sensitive to the types of AM waves; modulation depth nearly has no effects on the anti-jamming performance of FM Doppler fuze; to a certain extent, reducing Doppler filter bandwidth can improve the anti-jamming performance of FM Doppler fuze system.

Key words: FM Doppler fuze, AM jamming, anti-jamming, signal to jamming ratio (SJR) gain, Doppler filter, simulation

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