【摘要】 利用TH-UWB系统信号的特点,采用串行干扰消除检测方法,提出一种低复杂度的多用户检测器.该检测器采用多级检测结构,依据用户脉冲被干扰的情况来确定检测顺序,受到干扰最小的用户最先进行检测判决.前一级的检测结果反馈回来重建该用户的信号,然后从接收的信号中消除.该检测器使每级检测的处理增益最大化,从而取得较好的检测性能.理论分析和仿真结果表明,该检测器取得了远优于单用户匹配滤波检测的性能.更多还原

【Abstract】 From time hop-ultra wide-band(TH-UWB)′s signal structure,a novel low complexity multi-user detector for TH-UWB systems is proposed by using the serial interference cancellation method,in which a multistage structure was used and the users were ranked according to the interference of the users′ pulses to detect the user with minimal interference firstly.The detected results of the earlier stages were feedback to re-build the users′ signals subtracted from the received signal.The process gains of every stage were maximized by the detector to enhance the performances.Theoretical analysis and simulation results show that this detector achieves better performance than that of single user matched filter.更多还原