噪声调频干扰下伪码调相引信启动概率分析  

Analysis on Starting Probability of Pseudo-random Binary-phase-coded Fuze under Noise FM Jamming

作　　者：涂友超[1,2] 赵惠昌[1] 周新刚[1] 

机构地区：[1]南京理工大学电子工程与光电技术学院,江苏南京210094 [2]信阳师范学院物理电子工程学院,河南信阳464000

出　　处：《南京理工大学学报》2011年第2期252-256,共5页Journal of Nanjing University of Science and Technology

基　　金：国家部委基金(9140A05060209BQ0210);河南省教育厅自然科学基础研究计划项目(2010A510010);河南省高等学校青年骨干教师资助计划项目(2010GGJS-107)

摘　　要：该文通过建立伪码调相引信启动概率分析模型,从理论上推导出在噪声调频干扰下伪码调相引信的启动概率,仿真分析了压制性噪声调频干扰对伪码调相引信启动概率的影响。仿真结果表明,增加伪码序列的码长和接收机带宽,减小码元宽度,能够提高伪码调相引信启动概率;增加到达引信接收机的干信比,减小干扰信号带宽和干扰载频瞄准误差,能够降低其启动概率;当多普勒频率小于5 kHz时,它对启动概率的影响很小;随着多普勒频率的增加,它对启动概率的影响变大。该文研究可为引信抗干扰性能评估提供一种方法。The starting probability of pseudo-random code fuze（PRCF） is deduced under suppressing noise FM jamming by setting up an analysis model of the starting probability.The influence of suppressing noise FM jamming on the starting probability of the PRCF is analyzed by simulation.The simulation results show that the starting probability can be improved by increasing the pseudo-random code period and receiver bandwidth and by minishing the code-element width.The starting probability can be reduced by increasing jamming to signal ratio（JSR） of a reaching receiver and by minishing jamming bandwidth and collimating error of jamming carrier wave frequency.The Doppler frequency leaves a small influence on the starting probability when it is less than 5 kHz,but the influence becomes greater with the increase of Doppler frequency.This study can provide a method of assessing anti-jamming performances of fuzes.

关 键 词：伪码 引信 噪声调频 启动概率 干扰 

分 类 号：TJ43[兵器科学与技术—火炮、自动武器与弹药工程]