基于自适应的DS-UWB多用户检测方案研究

The Multiuser Detection of the DS- UWB Receiver Based on the Adaptive Scheme

文章在文献[1]的基础上进一步研究了基于直接序列扩频超宽带(DS-UWB)通信系统中接收机的多用户检测方案及其实现,提出了利用不同用户各自多径信道具有非相关性的特点进行多用户检测的独特思路。该方案充分考虑了多径信道的影响,给出了用户接入容量与地址码之间的关系以及用户接入容量与接收信号采样率之间的关系,最终提出了一种针对具体应用环境(多径信道)的简化的设计方法。

This paper further studies the scheme of the multiuser detection and its realization for the DS-UWB receiver with reference to reference [1] and gives a new scheme which utilizes the muhipath channels instead of eliminating it. The scheme takes multipath channels into consideration and gives the relationships between the user＇s capacities and address codes as well as between the user＇s capacities and the sample rates of the received signal. Some simplified design suggestions aimed at the specified environments （multipath channels） are presented at the end of the paper.