Ka频段卫星信道建模与纠错编码研究  

On Channel Modeling for Motionless Satellite Communication at Ka-band and Error Cor-recting Coding

作　　者：陈坚[1] 廖守亿[1] 邓方林[1] 

机构地区：[1]第二炮兵工程学院自动控制工程系,陕西西安710025

出　　处：《微计算机信息》2008年第22期292-294,共3页Control & Automation

基　　金：军队科学基金资助项目(编号不公开)

摘　　要：在分析Ka频段静止卫星信道特点的基础上,建立了信道仿真模型并进行了基带仿真,研究了不同天气条件下静止卫星通信系统的误比特率性能,基于这一模型通过仿真研究了串行级联Turbo码在静止卫星信道条件下的性能。仿真结果表明,除了中雨、雷雨等恶劣天气状况之外,在通常的天气条件下,串行级联Turbo码可以提供约10dB左右的编码增益,可有效改善系统性能。According to analyzing the characteristics of Ka-band motionless satellite channel, a channel model is set up and the performance of motionless satellite communication system is simulated in different atmosphere conditions. The serially-concatenated Turbo code is applied to the system model for the study of its error correction performance. The simulation results show that the seriallyconcatenated Turbo code can effectively improve the system performance by achieving a coding gain as high as lOdB in common atmosphere conditions except moderate rain and thunder storm.

关 键 词：串行级联Turbo码 KA频段 静止卫星信道 误比特率 

分 类 号：TN927[电子电信—通信与信息系统]