一种短波扩频通信系统的信号接收方案  

A scheme of signal acquisition of HF SS communication system

作　　者：王孜[1] 张永红[1] 

机构地区：[1]武汉船舶通信研究所,湖北武汉430079

出　　处：《舰船科学技术》2008年第B11期128-131,共4页Ship Science and Technology

摘　　要：给出了一种短波扩频通信系统的信号接收方案。该方案针对短波信道的特点,设计了一种可靠信号同步捕获方法以消除多径对信号捕获的影响,同时利用多径信号的有效能量,采用了RAKE接收技术来提高输出信噪比。经仿真证明,该方案使得误比特性能有了明显的改善。A scheme of signal receiver of the HF SS communication system is presented. Aiming at the multi-path effect and Doppler effect of the HF channel, a reliably capturing mode of the signal is designed to counteract the impact of multi-path, and RAKE receiving technology is also adopted to improve output SNR with utilizing the effective energy of multi-path signal. It is indicated that the BER is obviously improved in being use of RAKE receive technology.

关 键 词：短波通信 级联码 RAKE接收技术 多径分离 多径合并 

分 类 号：TN913[电子电信—通信与信息系统]