激光引信回波信号处理方法分析研究

Analysis on Echo Waveform Processing Method of Laser Fuse

激光引信是随着现代作战环境的需求和激光技术的迅猛发展而出现的一种近炸引信,其精度受到设计系统、目标环境及后期信号处理方法等方面的影响。文中首先分析了激光脉冲测距原理及影响脉冲激光引信测距精度的因素,并分别采用了小波分析及时间加权平均方法对理论下的回波信号进行了研究仿真,并比较其精度。同时,还提出了回波波形受云雾、烟尘、阳光等背景干扰时拟采用的一些方法。通过实验分析可知,这些方法对提高激光引信的精度有很大的帮助。

Laser fuse is a near-target fuse emerged with the rapid development of laser technology in military field. Its accuracy relies on system design, target environment and post-signal processing methods, and so on. The principle of laser pulse ranging and the factors affecting the ranging precision of pulse laser fuse are analyzed. The theorical echo signal is studied and simulated by using the method of wavelet analysis and time-weighted average, and also their accuracies are compared. Meanwhile, some methods are proposed when the echo wave is interfered by clouds, dust and sunlight, etc. Experiment and analysis indicates that these methods are very helpful in increasing accuracy of the laser fuse