基于FPGA的雷达终端音频远程监控系统设计

摘要

An radar terminal multi-way audio remote monitoring system based on FPGA technology and fiber channel technology is designed for monitoring the sounds of faults,alarms etc.from various parts of remote radar and taking urgent treatment for radar.The sampling and encoding of multi-way analog sounds are completed by audio encoder in this design.Then the audio data is packed through the FPGA audio processor,and transmitted remotely through fiber.Audio receiving parts unpack the transmitted data by FPGA,then restore the analog sounds by audio decoder.Experimental results show that this system applied in radar terminal can really and clearly restore the sounds from several kilometers away,so the design applying to radar remote monitoring system is feasible and reliable.%为了监听远程雷达多处部位传出的故障、报警等声音,对雷达采取应急措施,设计了一种基于FPGA技术和光纤通道技术的雷达终端多路音频远程监控系统。本设计采用音频编码器对多路模拟声音采样编码,经音频处理器FPGA实现多路音频数据的打包,最终通过光纤实现音频数据远距离传输;音频接收端采用FPGA对光纤传输过来的多路音频进行解包处理,经音频解码器实现多路音频的还原。实验结果表明该系统能逼真清晰地还原几十公里远的声音,因此,应用于雷达远程监控系统是可行的。