针对广义平稳非相干散射(WSSUS)多径时变信道,提出一种离散延迟-离散多普勒频率的“频移滤波器组”模型,并以此为基础提出一种时变多径信道仿真方法。与常用方法相比,该方法参数配置和实现简单,并且能清楚地反映信道的多径-多普勒结构。
A "frequency shifted filter bank" model with discrete delay and discrete Doppler is derived for wide-sense stationary uncorrelated scattering (WSSUS) time-variant multipath channel, based on which a simulation method is constructed. Compared with existing simulation algorithms, the method is simpler in parameter configuration and implementation, and can show the multipath-Doppler structure of channels clearly.