基于判决自相关超宽带接收机研究

首先介绍了基于判决自相关(简称DDA)超宽带接收机的接收原理和结构,理论分析了接收误码率特点;比较了基于判决自相关接收机与Rake接收机和基本TR接收机的基本参数要求,并在标准信道模型下仿真对比了它们的接收性能;考察了窗口宽度因子N对基于判决自相关接收机接收性能和结构的影响;通过提高判决自相关系统脉冲功率可在相同能量效率条件下获得与平均TR系统相近的接收性能,且具有更高传输率的优点。

Study of Decision-directed Autocorrelation UWB Receiver

This paper introduces the receiving principle and structure of decision-directed autocorrelation （DDA for short） UWB receiver firstly,analyzes the receiving bit error rate;compares the basic parameters of DDA receiver with those of Rake receiver and TR receiver, then compares their performances;studies the effect of width of sliding window （N） on the performance and structure of DDA receiver;with the power of basic pulse in DDA system increased, the DDA receiver has almost the same performance as average TR receiver at the same power efficiency, but has the advantage of higher transmission speed.