基于偏移量的PAM-TH-UWB信号的研究  

Study on the RAKE receiver of PAM-TH-UWB based on position-shift

作　　者：于银辉[1] 王洪磊[1] 丁建华[1] 

机构地区：[1]吉林大学通信工程学院,吉林长春130021

出　　处：《东北师大学报（自然科学版）》2010年第4期51-56,共6页Journal of Northeast Normal University(Natural Science Edition)

基　　金：国家高技术研究发展计划(863)项目(2006AA06Z114)

摘　　要：提出了基于偏移量的PAM-TH-UWB通信系统,给出了采用联合检测算法RAKE接收机的构成,详细分析了其性能.仿真结果表明:该系统稳定可靠,理想RAKE接收机(A-RAKE)优于选择性RAKE接收机(S-RAKE),选择性RAKE接收机优于部分RAKE接收机(P-RAKE),可以降低系统的误码率,提高系统抗干扰能力.In indoor environment,UWB signals suffer from dense multi-path propagation and severe time dispersion.RAKE reception is an important method to boost the performance of ultra-wide band receivers.In this paper,the concept of position-shift and the PAM-TH-UWB based on position-shift communication system are proposed,the structure and performance of the RAKE receiver adopted joint detection algorithm are analyzed in detail.It is shown by the simulation results that the performance of A-RAKE is better than that of S-RAKE and the performance of S-RAKE is better than that of P-RAKE;the system is steady and reliable,which can reduce the bit error rate,and boost the ability of anti-jamming in the whole system.

关 键 词：超宽带(UWB) 脉幅调制 误码率 联合检测 RAKE接收机 

分 类 号：TN911[电子电信—通信与信息系统]