激光编码周期的自相关解算

Method to solving laser-coded period by autocorrelation

针对时间差分统计法在探测到的激光制导信号出现漏脉冲或干扰脉冲的情况难以正确识别制导激光的编码周期,提出了一种基于自相关运算的编码周期解算新方法。该方法首先在时间上对激光制导信号进行离散化处理,使得激光制导信号变成标准的、数字式的激光脉冲序列,然后对此激光脉冲序列进行自相关运算,得到激光制导信号的编码周期。仿真结果表明了该方法的有效性。

Because it is difficult for time differencing method and statistics law to accurately identify laser-coded period when here are the missing pulses and the spurious pulses in the laser guidance signal that is detected, a new method solving laser-coded period based on autocorrelation is presented. After the laser guidance signal is changed into a normalized and digitized pulse sequence by time division, the laser-coded period of the signal is obtained based on autocorrelation operation to the sequence. The si...