基于空心光锥技术的非视线红外激光大气散射通信技术

Non-line-of-sight Infrared Laser Atmospheric Scattering Communication Technology Based on Hollow Cone Technology

为减少激光探测接收背景噪声的影响,针对非视距(non-line-of-sight,NLOS)激光远程通信问题,提出一种扇形和空心光锥压缩接收激光的前向散射信号的新方法。根据非视线散射通信原理,介绍其计算方法,并通过非视线激光大气散射通信数据测试和外场试验,实现便携式、低功率的1.1 km激光大气散射通信距离。验证结果表明:在非视线激光大气散射通信接收机中使用空心光锥能有效地提高通信能力,为战场上部队在受敌方电磁干扰或电磁静默时提供通信保障。

In order to reduce the influence of background noise in laser detection receiver,a new method of compressing and receiving the forward scattering signal of laser is proposed for the problem of"non-line-of-sight"laser telecommunication.According to the principle of NLOS laser atmospheric scattering communication,the calculation method is introduced.Through the data test and outfield experiment of NLOS laser atmospheric scattering communication,the portable and low power communication range of 1.1 km is realized.The results show that the use of hollow light cone in the NLOS laser atmospheric scattering communication receiver can effectively improve the communication capability,and provide communication support for the troops in the battlefield when they are subjected to enemy electromagnetic interference or electromagnetic silence.