【作者】 王辉宇； 张钦宇； 张乃通；

【Author】 WANG Hui-yu, ZHANG Qin-yu, ZHANG Nai-tong (Communication Research Center, Harbin Institute of Technology, Harbin, 150001, China)

【机构】 哈尔滨工业大学通信技术研究所；

【摘要】 由于UWB主要应用在密集多径的室内环境,所以研究多径效应造成的码间干扰对于设计高速UWB 系统非常重要。分析了基于跳时多址的UWB的码间干扰效应。通过分析脉冲的各个多径分量与之后发送的脉冲的时间差的分布,得到了跳时UWB的码间干扰估算公式。与采用等间距发送脉冲时的码间干扰对比, 结果显示,随着脉冲重复周期增大,跳时UWB的码间干扰的改善的速度比等间距发送脉冲时缓慢。更多还原

【Abstract】 For UWB is mostly applied in dense multipath indoor circumstance the study on Inter Code Interference (ICI) caused by multipath is very importance for designing a high rate UWB system. The ICI of TH-UWB is studied. After study on the probability distribution of the time between the reflections of former impulse and the latter one the approximation expression of ICI is derived. The analysis shows, the improvement of ICI from increasing the pulse repetition frequency is slow than equidistance transmitting impulse when the manner of transmitting impulse is time hopping.更多还原