多发多收网络仿真器的FPGA实现及测试

Implementation and Test of Multi-transmitting and Multi-receiving Network Simulator Based on FPGA

为了能验证战术电台组网时在不同拓扑图的组网路由情况,利用现场可编程门阵列(Field Programmable GateArray,FPGA)技术设计了一种能快速生成并方便修改拓扑图的网络仿真器,该仿真器既能测试多发多收模式,也能测试时分多址(Time Division Multiple Access,TDMA)模式的发送情况,节点数可以方便地升级,便于功能的扩展。为了测试所设计的仿真器,采用SignalTapII对多个节点的输出信号进行测试,测试结果证明了在2种模式下网络仿真器均能快速地完成拓扑图的切换并能很好地工作。

In order to validate the performance of the constructed network based on tactical radios,the paper makes uses of the FPGA technology to design a kind of Network Simulator.It can quickly form network routeway according to the topology figure provided.The Network Simulator can test both the mode of TDMA transmitting and the mode of multi-transmitting and multi receiving.The number of nodes simulated can easily be increased to enlarge functions.To quickly test the simulator designed,the paper uses the SignalTapII tool to test a great deal of output signals.The result of test indicates the Network Simulator can quickly accomplish the switch of network topology figure in two modes and works well.