噪声调幅干扰下伪码调相引信启动概率分析

Analysis on Starting Probability of Pseudo-random Code Phase Modulation Fuze under Noise AM Jamming

研究了噪声调幅干扰对伪码调相引信启动概率的影响.从理论上推导了瞄准式噪声调幅干扰下伪码调相引信的启动概率,仿真分析了影响引信启动概率的因素.仿真结果表明:增加引信接收机输入干信比、减小干扰信号带宽、提高噪声有效调制系数和噪声质量因数,能够降低伪码调相引信的启动概率;合理地降低伪码调相引信启动门限电平、增加码长、减小码元宽度和多普勒频率,能够提高伪码调相引信的启动概率.

The impact of noise AM jamming on starting probability of pseudo-random code phase modulation fuze （PRCPMF）was researched.The starting probability of the PRCPMF was deduced under noise AM jam-ming.Factors influencing the starting probability were discussed.The simulation results showed that the start-ing probability cloud be reduced by increasing the input jamming to signal ratio（JSR）of the receiver,and by minishing jamming bandwidth and improving noise effective modulation coefficient and noise quality factor,the starting probability cloud be improved by reasonably reducing the starting threshold level of the PRCPMF,and by increasing the code period and decreasing the code-element width and the Doppler frequency.