摘要
本文提出了超宽带(UWB)无线通信系统的一种新的接收机结构及其相应的算法。这种接收机可以使用天线阵,然后对脉冲序列相关器的输出进行加权处理,从而增强了通信系统对多用户干扰(MUI)的抑制能力。计算机仿真结果说明,不管是用于脉位调制(PPM)还是脉幅调制(PAM)系统中,这种接收机的性能都优于常规的接收机。
A receiver structure and the corresponding reception algorithm are presented for Ultra-wideband (UWB) Pulse Wireless communication (PWC) systems. The receiver uses antenna array and weighted pulse sequence correlator to enhance the Multi-User Interference (MUI) suppression capability. Simulation results show that when used in TH-SS UWB PWC system, MUI with the receiver can be efficiently canceled as to achieve much better performance than that of the conventional TH-SS UWB PWC system. The results also show that system using Pulse Amplitude Modulation (PAM) outperforms the Pulse Position Modulation (PPM) system.
出处
《电路与系统学报》
CSCD
2003年第2期14-17,共4页
Journal of Circuits and Systems
基金
国家863计划研究项目(2001AA123042)
