一种Ka频段海上卫星通信抗雨衰编码方案  

An anti-rain attenuation encoding solution for sea Ka-band satellite communication

作　　者：高化猛[1] 李智[2] 

机构地区：[1]装备指挥技术学院继续教育系,北京102206 [2]装备指挥技术学院重点实验室,北京101416

出　　处：《舰船科学技术》2011年第12期76-78,102,共4页Ship Science and Technology

基　　金：国家高技术发展计划资助项目(2006AA705102)

摘　　要：分析卫星通信雨衰现象的产生机制和对Ka频段卫星通信的影响,提出采用CCSDS标准卷积码作为抗雨衰编码方案。研究CCSDS(15,1/6)卷积码编译码性能:使用C语言编译环境,仿真CCSDS(15,1/6)编码系统,得出编码效率;使用二进制相移键控调制、加性高斯白噪声信道、维特比译码,仿真CCSDS(15,1/6)译码系统,得出译码性能和编码增益。仿真计算表明,CCSDS(15,1/6)具有编码速度快,译码性能好,编码增益高的特点,是一种好的海上卫星通信抗雨衰编码方案。The mechanism of rain attenuation in satellite communication and it＇s affection to Ka-band satellite communication are analyzed. CCSDS（15,1/6）standard convolution code is recommended as channel code to anti-rain attenuation the performance of CCSDS（15,1/6） standard convolution code is researched. The encoding efficiency is found by simulating encoding system in C translation environment. The decoding performance and encoding gain are found by simulating decoding system in BPSK modulation, AGWN channel, viterbi decoding algorithm. Simulation research demonstrates that the CCSDS （15, 1/6）standard convolution code is a good channel encoding solution for anti-rain attenuation in satellite communication on the sea because of high encoding velocity, high decoding performance and high encoding gain.

关 键 词：卫星通信 雨衰 标准卷积码 编码 译码 仿真 

分 类 号：E917[军事] TN911.22[电子电信—通信与信息系统]