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对北京市区内受高层建筑物影响的数字脉冲信号多径传播时域展宽的实测值进行了分析与建模，给出了多径传播信号时延特性的Ｗｅｉｂｕｌ分布的数学统计模型，分析了接收机带宽对多径传播产生的误码特性的影响。利用这个数学模型能确定出信号在多径传播中，那些路径在传播特性上起主导作用，以最小的误码率选择最佳的接收机带宽。这对于在移动数字通信中，改善由多径效应引起的误码率增高而严重影响通信的传输质量，具有非常重要的指导作用。
The measured value of time domain broadening of multipath propagation of digital impulsive signals affected by tall buildings in Beijing urban area is analyzed and modeled. The mathematical statistical model of Weibul distribution of multipath propagation delay is given. Effect of Receiver Bandwidth on Error Characteristic of Multipath Propagation. Using this mathematical model, it is possible to determine the signals that play a dominant role in propagation characteristics in multipath propagation and to choose the best receiver bandwidth with the lowest bit error rate. This is a very important guide for improving the transmission quality of communication caused by the increase of the bit error rate caused by multipath effect in mobile digital communications.