学术
Ka频段固定卫星通信Turbo码性能仿真
张青春[1] 王坤[1] 杜建礼[2]
[1]武汉海军工程大学,武汉430033 [2]青岛91003部队,青岛266000
摘 要:
使用Ka频段是卫星通信系统解决信道拥挤和提高系统容量的有效途径。为了提高Ka频段卫星通信的传输性能，本文在对Ka频段固定卫星通信信道进行分析的基础上，提出了一种适合该信道的Turbo码编译码方案，译码时通过使用修正的信道可靠性常数极大地提高了译码性能。最后，利用Ka固定卫星通信信道模型对该Turbo码方案性能进行了仿真。仿真结果表明，本文采用的Turbo码方案与采用相同码率的卷积码和卷积级联码方案相比，所带来的增益大于1．5dB.[著者文摘]
文章出处:
《电子测量技术》-2007年30卷1期 -116-118页
栏目信息:
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文献标识码:
A
Simulation of Turbo coding suite for Ka-band fixed satellite communication
Zhang Qingchun Wan Kun Du Jianli （1. Navy University of Engineering,Wuhan 430033;2. PLA 91003 Troop,Qingdao 266000）
Abstract:
Moving to Ka-band is an effective way of solving closed orbits and improving system capacity for the satellite communication. Based on the analysis of Ka-band fixed satellite communication channel, a Turbo coding scheme is present suit for the channel,having better performance improvement through using optimized channel constant. A model of Ka-band fixed satellite communication channel and a corresponded simulation system with the Turbo coding scheme are created. Simulation results show that the Turbo coding has more 1. 5dB gain than convolution coding or convolution concatenated coding.[著者文摘]
Key words:
Turbo coding; Ka-band; fixed satellite communication; simulation
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