激光角度欺骗干扰技术的改进研究

A new technology of laser angle-cheating jam

传统的角度欺骗干扰技术由于使用的激光干扰机的重复频率较低,至少需要识别出制导信号的最小周期,才能有效地实施干扰,因此具有系统反应时间长,不能对制导过程的搜索段进行干扰的缺点。本文在对目前使用最广泛的PCM激光编码的特点进行分析研究的基础上,提出了通过适当提高激光干扰机的重复频率,只需接收到两个激光制导信号,就可以有效干扰使用PCM码的激光制导武器。针对伪随机码的特点,增加了简单的信号处理过程,只需接收三个激光制导信号,就可以对其实施有效干扰。改进后的角度欺骗干扰技术具有系统反应时间短,能够实现在激光制导搜索段干扰激光制导武器的目的。

The condition of traditional laser-cheating jam is that the minimum cycle time of indicator laser pulse must be identified. It is invalid to jam LGW which is searching indicator laser pulse. Based on the characteristic of PCM laser code, a new technology of laser angle-cheating jam was developed. By increasing PPS of laser, it can jam LGW if two indicator laser pulses were received. If simple signal processing technology was used, LGW which use fake-random laser code can be jammed effective when three indicator laser pulses were received. It is easy to jam LGW because the new jamming technology has a Short react-time.