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为在现代电子战争中可靠地识别敌我,提出了一种基于激光束编码的合作式目标识别方法.该方法通过半导体激光器发射含有询问、应答密码信号的调制光束进行通信,完成敌我目标的主动式识别,从而解决了传统无线电识别系统抗干扰性差、精度低等问题.设计了一种以M序列为询问、应答码的密码器.解决了传统目标识别系统中密码容量不足,随机性、保密性差和抗干扰能力低等问题.给出了产生全部M序列的过程及其电路设计.试验结果证明了该方法的实用性和可靠性.
In order to reliably identify the enemy and ourselves in modern electronic warfare, a cooperative target recognition method based on laser beam coding is proposed. In this method, the semiconductor laser emits a modulated light beam containing an interrogating and answering cryptographic signal to perform active identification of the enemy and the target, so as to solve the problems of poor anti-interference and low accuracy of the traditional radio identification system. A coder designed with M sequence as inquiry and reply code is designed. Solve the traditional target recognition system password capacity shortage, randomness, confidentiality and anti-interference ability of low and other issues. The process of generating all M sequences and its circuit design are given. The test results prove the practicability and reliability of this method.