基于空间分集的UWB系统性能分析  

Performance Analysis of UWB System Based on Multiple Receive Antennas

作　　者：刘敏[1] 颜彪[1] 杨娜[1] 张慧[1] 杨银霞[1] 

机构地区：[1]扬州大学信息工程学院,江苏扬州225009

出　　处：《无线电工程》2009年第3期13-15,共3页Radio Engineering

基　　金：新空时编码技术研究;江苏省高校自然科学基础研究项目(07KJD510247)

摘　　要：将多接收天线应用于跳时(TH)二进制反极性脉冲幅度调制(2PAM)超宽带(UWB)系统中,在存在多用户干扰的环境下以提高系统的误码性能,进而达到高速率通信。分析了在SGA条件下,基于空间分集的SINR的表达式,估计了系统的误比特率,并对2PAM-TH-UWB系统的性能进行仿真。仿真结果表明,随着接收端接收天线数的增加,2PAM-TH-UWB系统误码性能提高。Multiple receive antennas are applied to the multi-user binary pulse amplitude modulation（2PAM）time hopping（TH）ultra-wideband（UWB）system so that the BER performance of the system could be improved in the presence of the multi-user interferences and high-data-rate communications could be achieved.On the condition of SGA,the expression for the SINR based on spatial combining is analyzed,the bit error rate（BER）performance is evaluated and the performance simulation of 2PAM-TH-UWB system is carried out.Numerical results show that the BER performance can be enhanced by spatial diversity combining.

关 键 词：2PAM UWB 多用户 空间分集 

分 类 号：TN929.5[电子电信—通信与信息系统]