中继卫星系统信道模拟器硬件电路设计

摘要

For the design and implementation of channel simulator for relay satellite system,and based on the study for simu-lation principle and working process of the channel simulator,the IF signal processing board card,receiving and transmitting board cards of the channel simulator were designed in detail for hardware circuits in combination with the practical application. The configuration program of the high-speed DA chip was designed based on FPGA platform,and simulated with Modelsim to verify the correctness of its functions. The hardware of the board card is tested,and the test results show that the designed hardware cir-cuit is completely in conformity with the operating requirements in testing of the channel simulator for relay satellite system.%结合实际应用,针对中继卫星系统信道模拟器的设计和实现,在对信道模拟器的模拟原理和工作流程进行研究的基础上,从信道模拟器的硬件电路入手,对信道模拟器的中频信号处理板卡、接收及发射板卡进行了详细的设计.基于FPGA平台对高速DA芯片的配置程序进行设计,并对该配置程序进行ModelSim仿真,验证其功能的正确性.最后对板卡进行了硬件测试,测试结果表明,设计的硬件电路完全符合中继卫星系统信道模拟器在测试中的使用要求.