激光引信距离测量统计分布特性研究

Statistical Distribution Characteristics of Distance Measurement of Laser Fuze

针对噪声对激光引信数字式峰值测距法的影响,研究激光引信距离测量值的统计分布特性。建立了脉冲信号和随机噪声组成的待测电压模型,在不同脉冲宽度、信噪比条件下,利用蒙特卡罗仿真方法,研究激光引信峰值测距法测得的计时终止时刻的统计分布规律。仿真结果表明,减小脉冲宽度和提高信噪比,有利于改善激光引信的测距精度。

Considering the noise effect on digital peak distance measurement method for laser fuze, the statistical distribution characteristics of distance measurement of laser fuze are studied. Based on the pulsed voltage signal and the random noise signal, the model of voltage signal to be measured is established. The statistical distribution of the time-ending moment measured by the peak distance measurement method for laser fuze is studied by Monte Carlo simulation method under the conditions of different pulse width of the pulsed voltage signals and different signal-to-noise ratio. The simulation results show that reducing pulse width of the transmitted signal and improving the signal-to-noise ratio of the detection system will improve the measurement accuracy of the laser fuze.