移动通信信道仿真器的FPGA设计与实现

FPGA Implementation of the Mobile Channel Simulator

本文介绍了一种信道仿真器的FPGA硬件设计与实现,该仿真器模拟了移动通信信道的基本性质,包括多径Rayleigh衰落效应、多普勒效应。重点分析了信道仿真器实现中的主要关键技术,包括高斯噪声源的产生、多普勒滤波器的设计以及多径衰落信道在FPGA硬件电路中的实时处理。

This paper describes the implementation of the mobile radio channel simulator.The simulator has the basic characters of the mobile radio channel,including Rayleigh fading and Doppler spectrum.The key problem focuses on how to create the Gaussian noise signal resource,how to design the Doppler filter and how to realize the realtime processing of the multipath fading in the FPGA circuit.