【摘要】 提出了一种全新超宽带(UWB,ultra-widebandwidth)室内视距(LOS,line-of-sight)环境的多径传播模型(简称多径模型)。该模型以南加州大学UltRa实验室的UWB室内LOS环境实测数据为基础,信道冲激响应具有两个确定的簇,每个簇内具有随机到达的多径射线。模型有效地利用特定环境的几何参数数据,在预测室内LOS环境的小尺度多径传播特性(平均附加时延、RMS时延扩展、最强多径数量)上较传统的统计模型更加简化和准确,与传统的确定模型相比,明显地降低了模型建立的复杂度。更多还原

【Abstract】 A new UWB multipath model for LOS environments was proposed.The model had two deterministic clusters and stochastic arriving rays within each cluster and fitted UltRa Lab of university of Southern California indoor UWB measurements well.The model is more accurate in modeling small-scale LOS environment than traditional statistical model when considering the statistics of the mean excess delay spread,RMS delay spread and the number of significant multipaths observed in the UWB channel,also in modeling procedure it reduces complexity dramatically than traditional deterministic model.更多还原