In this paper, a two-dimensional (2-D) transverse magnetic (TM) mode finite difference time domain (FDTD) method is used to simulate the indoor radio wave propagation and model the indoor ultra wideband (UWB) channel. The modulated Gaussian p

实现超宽带信号在自由空间，室内的传播过程，该过程通过FDTD技术来实现。-Through FDTD technology,we simulate the process that UWB signal transmits in freespace