论文部分内容阅读
根据室内无线电波传播规律和实测数据,研究建立了一个新的抽头时延线模型,该模型可以简单有效地估计视距和非视距路径下室内平均功率时延谱,并与实验结果一致.在广义平稳非相关散射信道前提下,通过分析抽头时延模型频率相关系数、抽头系数分布和相关性、抽头多普勒频谱等特性参数,给出了评估抽头时延线模型的新方法.文中建立的信道模型和参数,对于室内多输入多输出无线信道模拟仿真有较为重要的意义.
According to the propagation law and measured data, a new model of tap time delay line is established. The model can estimate the indoor average power time delay of line-of-sight and non-line-of-sight paths easily and effectively, and is consistent with the experimental results. Under the premise of generalized stationary non-correlated scattering channel, a new method of evaluating tapped time-delay model is given by analyzing the frequency correlation coefficient, tap coefficient distribution and correlation, tap Doppler spectrum and other characteristic parameters. The established channel model and parameters are more important for simulation and simulation of multiple input and multiple output wireless channels in the room.