短波信道盲均衡技术研究  

Study on Blind Equalization for HF Communication Channel

作　　者：肖毅[1] 王晓亚[2] 

机构地区：[1]中国人民解放军73683部队 [2]中国电子科技集团公司第五十四研究所

出　　处：《无线电通信技术》2014年第4期50-52,59,共4页Radio Communications Technology

摘　　要：针对短波无线信道的衰落特性严重影响信号接收的问题,在分析研究短波信道特性的基础上,通过研究现有各种盲均衡算法的特点,合理设计均衡器的结构和参数,提出了适用于短波信道的盲均衡改进算法。理论分析和仿真试验均表明,盲均衡算法较好地改善了信道环境,提高了解调性能,具有不占用信道带宽的特点,易于工程实现。The wireless fading channel always has a serious influence on the effect of signal demodulation receiving in HF communication system.To tackle this problem,the rational design of the structure and parameters of the equalizer had been proposed and the Modified blind equalization algorithm suitable for shortwave channel had been put forward,based on the analysis of the HF channel characteristics and various blind equalization algorithms.Theoretic analysis and simulation results show that the blind equalization algorithm can effec-tively improve the channel quality and improve the demodulation performance.It has the advantages of less occupied channel bandwidth and easy implementation in engineering.

关 键 词：短波通信 衰落信道 WATTERSON模型 盲均衡 

分 类 号：TN872[电子电信—信息与通信工程]