摘要
从紫外光的传播特性看,它具有较强的大气散射和衰减特性,使其具有较强的绕射能力,能够有效实现非直视通信,同时能够有效控制信号的覆盖范围。因此,紫外光通信是一种具有良好反侦察、抗截获能力的通信技术体制。其中紫外光的调制解调与信道编译码技术是其关键技术。该文重点讨论多进制脉冲位置调制原理及方法,同时,也研究了各种编码方案,并提出了卷积编码作为其信道编译码的技术体制。
When propagating in the free space, the ultraviolet was attenuated and scattered strongly by the atmosphere. These characters on propagation enable the ultraviolet the ability of communication in non-line site and controlling the signal propagation arrange. So, the ultraviolet communication is a kind of communication technology with excellent ability of counter-reconnaissance and anti-interception. The modulation of ultraviolet and the FEC is the key technology of ultraviolet communication. Generally, PPM is used as the ultraviolet modulation technology and convolution code as the FEC technology.
出处
《舰船电子工程》
2011年第12期14-17,共4页
Ship Electronic Engineering
关键词
日盲紫外光
反侦察
抗截获
solar blind ultraviolet, counter-reconnaissance, anti-interception
