PAM和PPM在多天线超宽带通信系统中的应用  

Application of PAM and PPM in multi-antenna UWB communication system

作　　者：吴南南[1] 窦峥[1] 陈丽丽[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,哈尔滨150001

出　　处：《哈尔滨商业大学学报（自然科学版）》2013年第4期470-473,共4页Journal of Harbin University of Commerce：Natural Sciences Edition

摘　　要：在超宽带(UWB)无线通信系统上采用多天线技术不仅可以提高信道容量,又能提高数据传输速率并扩大覆盖范围.构建了多天线超宽带通信系统仿真模型,研究不同种调制方式在多天线超宽带系统中的应用,并分别对采用跳时脉冲位置调制(TH-PPM)、跳时脉冲幅度调制(TH-PAM)和直扩脉冲幅度调制(DS-PAM)时系统性能进行了仿真.仿真结果表明,在相同条件下,当误码率为时,采用TH-PAM较采用TH-PPM方式的信噪比有近6 dB的提高;当均用PAM,采用TH技术与采用DS技术的多天线超宽带系统误码率性能差别不大.Multi-antenna are desirable in ultra wide band communication system to improve the channel capacity, increase data rate and expand coverage. This paper set up the multi-an- tenna UWB communication system and studied on the different modulation in multi-antenna UWB system. Simulated the system performance using TH - PPM, TH - PAM, DS - PAM. The simulation showed that Eb/No was improved near 6 dB in the system with TH - PAM modulation than the one in the system with TH - PPM when BER was 10 -4. When PAM were used, system error rate using DS and using TH technology had little difference.

关 键 词：超宽带 多天线 脉冲幅度调制 脉冲位置调制 跳时 直扩 

分 类 号：TN914.2[电子电信—通信与信息系统]