UWB multipath propagation channel characteristics based on time-domain ray tracing

摘要

The uniform geometrical theory of diffraction (UTD) and ray tracing technique is used to simulate ultra wideband (UWB) signal multipath propagation characteristics. According to the simulation results, the article presents the parameters of the double exponential decay model using cluster method in the office. A piecewise exponential multipath channel model is proposed for multipath power delay distribution (PDP), which is suitable for long distance from indoor to corridor, and the slow fading channel on the indoor and corridor is proved by using Doppler expansion.