航空通信系统中信道编码理论及应用分析  

Theoretical Analysis and Application of Channel Coding in Aviation Communication Systems

作　　者：邹星 李金喜 丁勇飞 方正 

机构地区：[1]中航工业无线电电子研究所,上海200241

出　　处：《电光与控制》2015年第10期68-72,共5页Electronics Optics & Control

基　　金：航空电子系统综合技术重点实验室和航空科学基金联合资助项目(2013ZC15008)

摘　　要：一般地,航空通信系统具有功率受限、带宽受限、时延受限的特点。针对航空通信系统对信道编码高增益和低时延的要求,首先理论推导通信系统(特别是二进制通信系统)应用r码率信道编码获得编码增益的香农极限值,并仿真对比分析几类典型信道编码的编码性能,最后结合工程实现考虑的技术指标对几类信道编码的应用范围进行了定性分析,其对航空通信系统的信道编码选取具有工程指导意义。Generally,the aviation communication system has some constraints, such as power, bandwidth and latency. To satisfy its requirements of high coding gain and low latency to channel coding, the paper derives the theoretical Shannon limit on the minimum SNR required for coded system, especially for the binary communication system. And then, the performance of several typical kinds of channel coding is analyzed through simulation. Finally, qualitative analysis is made to the application scope of the different channel coding methods with consideration of the technical indicators of them. The conclusion has engineering significance for the selection of channel coding in aviation communication systems.

关 键 词：航空通信 信道编码 香农极限 香农距离 

分 类 号：TN911.22[电子电信—通信与信息系统]