DS-SS系统中横向均衡器的性能分析

The Performance Analysis of Transversal Equalizer in DS-SS System

在直接序列扩谱（ＤＳ－ＳＳ）系统中，横向均衡器（ＴＥ）能够有效地克服多径干扰．本文在文［２］的模型基础上给出了ＴＥ的稳态解，指出系统的稳态性能由有效信号和干扰信号的相关系数决定．实际系统中相关系数是时变的，用实验方法统计得到相关系数以趋近１的概率落在［０，０．３］之间，证明相对匹配滤波器接收，ＴＥ能有效地抑制多径干扰．另外，文中还分析了其它参数对系统性能的影响．

In Direct-Sequence Spread-Spectrum (DS-SS) system,Transversal Equalizer (TE) can combat multipath interference effectively.Based on the model in [2],the steady state solution of TE is given in this paper.lt shows that the steady state performance is mainly decided by the correlation coefficient between the effective signal and the interference. However, the coefficient is time-variant in practical in practical systems,The simulation demonstrates that it is located in [0,0.3] with a Probability about, which proves that TE can combat multipath interference effectively compared to the matched filter receiver. Additionally, we analyze the effects to the system performance by other parameters.