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根据多频高频地波雷达总线数据传输速率的要求,本文设计了一种基于以太网通信的数据传输系统.系统以数字信号处理器TMS320C6748为硬件基础,该处理器有一个10/100 Mb·s-1自适应的以太网接口,既可以完成对大量雷达采样数据的处理又可以直接与上位机通信,不需要额外的硬件平台.该系统具有设置固定和可变IP地址、接收和上传设备信息、响应在线设备搜索命令以及定时上传雷达采样数据的功能,并提供一套有效的系统可靠性测试方案.测试结果表明,该网络通信系统有良好的稳定性和可靠性,数据传输速率平均可达80 Mb/s,很好地满足了多频高频地波雷达系统的需求.
According to the requirements of multi-frequency and high-frequency ground wave radar data transmission rate, a data transmission system based on Ethernet communication is designed in this paper.The system is based on the digital signal processor TMS320C6748, which has a 10/100 Mb · s-1 adaptive Ethernet interface, which can not only process the large amount of radar sampling data but also directly communicate with the host computer without any additional hardware platform.The system has the functions of setting fixed and variable IP address, receiving and uploading device Information, response on-line device search command and time-lapse radar sampling data, and provides an effective system reliability test program.The test results show that the network communication system has good stability and reliability, and the average data transfer rate Up to 80 Mb / s, well meet the needs of multi-frequency and high-frequency ground wave radar systems.