激光伪随机编码的最小周期识别算法改进研究

Improvement of minimum period recognition algorithm of laser pseudo-random code

目前激光制导武器使用的伪随机编码,基本都是利用移位寄存器加上特定的反馈函数来实现的,只要识别出其最小周期就可以利用准同步干扰方式进行干扰。对有限位伪随机码的特点进行研究和分析,介绍了一种新的计算小数之间的整数比的方法,并提出了对现有最小周期识别算法的改进算法。进行了仿真验证,结果表明:改进后的算法优于现有其他方法。

Nowadays,the pseudo-random code which the laser guided weapons use,is realized with the shifted-register and some feedback functions.So,if the minimum period is identified,the interference can be bring into effect.Based on the characteristics of the pseudo-random code,a new algorithm about how to count the integral ratio of two decimal fractions is introduced and the improvement algorithm of the minimum period recognition is given.The simulation results show that the improvement algorithm is better than other algorithms.