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PC104总线雷达信号显示卡是将基于PC104总线的虚拟仪器技术应用于通用雷达嵌入式诊断组合中信号的显示,对于改进雷达装备故障检测方式具有重大意义。通过对信号波形显示原理以及显示方法的分析,确定了具体的实际方案,完成了功能电路的设计;采用专用接口芯片结合CPLD的方法实现了PC104总线的接口协议以及逻辑控制电路,最后编写了相关的软件程序;显示卡在实际测试过程中能稳定工作,满足设计指标要求。
PC104 bus radar signal display card is based on the PC104 bus virtual instrument technology used in general purpose radar embedded diagnostic signal display, for improving the radar equipment fault detection is of great significance. Through the analysis of signal waveform display principle and display method, the concrete practical scheme was confirmed and the design of the functional circuit was completed. The interface protocol of PC104 bus and the logic control circuit were realized by using the special interface chip combined with CPLD. Finally, Of the software program; graphics card in the actual test process can work stably to meet the design requirements.