【摘要】 分析跳时序列在跳时脉冲位置调制(TH-PPM)超宽带无线电系统中的作用及对系统性能的影响。给出了一种新颖的跳时序列设计方法,理论分析该跳时序列具有最佳的汉明相关特性,适用于跳时超宽带多址系统。计算机仿真验证了在超宽带无线电多址系统中,采用该跳时序列比其他跳时序列更能有效地抑制多用户干扰的影响,从而获得较佳性能。更多还原

【Abstract】 This paper investigates the specific role of time-hopping sequences in the time-hopping pulse position modulation ultra-wideband system and its effect on the BER performance of the system.A novel family of time-hopping sequences that provides the optimal hamming correlation properties is constructed.Computer simulation shows that the UWB system employing the constructed time-hopping sequence can reduce the multi-access interference and accordingly better performance can be gained as compared with the other ones.更多还原