无线通信实验室信道仿真器的设计与实现

移动无线信道传输特性的仿真对移动通信的研究具有重要意义,本文介绍了一种基于ARM和FPGA设计的信道仿真器。该信道仿真器不仅可以实时模拟移动通信信道的基本性质(移动通信信道的性质是通过误码率变化来实现的),实现移动终端(仿真电台)的集群通信,还可以验证通信网络的组网能力。文中主要介绍了信道仿真器整体的设计及在工程上的实现方法。实验证明,该信道仿真器可灵活改变信道的参数,能够满足多种测试环境的需要,具有一定的使用价值。

Implementation of channel simulator for the wireless communication laboratory

Simulation of mobile wireless channel characteristics is of great importance for mobile communication study.Implementation of the channel simulator based on ARM and FPGA is described.This simulator not only has the basic characters of the mobile radio channel,which is achieved by changing bit error rate,but also implements trunking communications by mobile terminals(radios simulator) and verifies the network capacity of communications.The whole design and implementation of the project is also introduced.It is proved that this simulator can change the channel parameters freely and therefore can meet the need of a variety of testing environment.