基于高频段卫星通信的迭代解调和解码  

Iterative demodulation and decoding based on high frequency satellite communications

作　　者：彭东[1] 高大伟[1] 

机构地区：[1]中国人民解放军92941部队3分队

出　　处：《计算机工程与设计》2009年第22期5097-5099,共3页Computer Engineering and Design

摘　　要：基于卫星通信系统正面临着在更小的和更具有流动性的终端之间且没有多少增加可分配带宽的条件下,以高速率传输更多信息的挑战,提出了一种误码控制编码和调制方法,可以帮助满足未来卫星通信系统的要求。该方法的接收器在解调器和解码器之间迭代,可以使得近似一致地具有小的参考码元开销的性能。同时,解码过程被扩展,从而在干扰的情况下,接收器可以估计干扰情况并恰当地综合从不同跳变得来的信息。Satellite communications systems are being challenged to transport more information at higher rates, among smaller and more mobile terminals, with little or no increase in allocated bandwidth. An approach to error-control coding and modulation that can help achieve the requirements of future satellite communications systems is proposed. The receiver in this approach iterated between demodu- lation and decoding, which enabled near-coherent performance with minimal reference symbol overhead. Also, the decoding process is augmented so that, in the presence of jamming, the receiver estimated the jammer state and combines information appropriately from different hops.

关 键 词：卫星通信系统 极高频 迭代 跳频 解码 

分 类 号：TN911.22[电子电信—通信与信息系统]