对流层散射通信信号形式的研究  

Signal Form of Troposcatter Communication

作　　者：赵彬[1] 王光辉[1] 刘树钢[1] 

机构地区：[1]中国人民解放军总参谋部通信训练基地,河北张家口075100

出　　处：《河北北方学院学报（自然科学版）》2013年第5期19-22,30,共5页Journal of Hebei North University:Natural Science Edition

摘　　要：基于对流层散射信道是多径衰落信道,会造成信号频率选择性衰落和码间干扰。研究一种重要的信号形式———交叠升余弦,给出一种基于FPGA的失真自适应相干解调的具体实现方案,并通过Matlab软件进行仿真。最后得出结论,采用交叠升余弦波形信号形式,具有一定的抗多径能力。Multipath fading of the troposcatter channel can cause signal frequency selective fading and intersymbol interference.A kind of important signal form-frequency-diversity time-interleaved raise co-sine was proposed.The paper gave an implementing of raise cosine QPSK modem by FPGA and simulated the system by Matlab software.The conclusion is that the signal form of frequency-diversity time-inter-leaved raise cosine has excellent performance in fighting against multipath fading.

关 键 词：散射通信 交叠升余弦 QPSK FPGA 

分 类 号：TN926.4[电子电信—通信与信息系统]