无人机通信干扰电磁环境半实物仿真系统

针对战场环境下复杂传播环境及敌方干扰对无人机通信系统性能的影响，提出了综合信道衰落和干扰共同作用下的无人机通信信道理论模型。在此基础上，基于微波暗室设计实现了无人机通信干扰电磁环境半实物仿真系统。该系统利用硬件现场可编程门阵列(Field Programmable Gate Array,FPGA)实时模拟无人机通信信道和干扰信号，利用微波暗室模拟外场的无线传播环境，并通过天线位置和角度调节装置模拟发射机、干扰机和接收机之间的空间位置特性。实测结果表明，该半实物仿真系统能够真实复现无人机通信干扰电磁环境，可用于无人机数据链抗干扰性能的测试和评估。

A hardware-in-loop simulation system for UAV communication and jamming electromagnetic environment

Since the complex communication environment and enemy jamming will influence the performance of the unmanned aerial vehicle(UAV) communication system under battlefield environment,a theoretical model of UAV communication about the channel fading and enemy jamming is proposed.Then on this base,a hardware-in-loop simulation system for the UAV communication and jamming electromagnetic environment is designed and implemented based on the microwave anechoic chamber.The system uses field programmable gate array(FPGA) to simulate the UAV communication channel and jamming in real time,and uses the microwave anechoic chamber to build the outfield wireless communication environment,and uses the antenna position and angle adjusting device to simulate the spatial-location-relation between transmitter,jammer and receiver.The measured results show that the hardware-in-loop simulation system can truly reproduce the UAV communication and jamming electromagnetic environment,which can be applied in the test and evaluation of the anti-jamming performance of UAV data link.