高频地波雷达OSMAR2000同步控制器

The Synchro Controller of HF Ground Wave Radar OSMAR2000

根据高频地波雷达 (OSMAR2 0 0 0 )的时序要求 ,给出了利用可编程序间隔定时器 82 C5 4产生各种控制信号和同步信号的方法 .同步控制器采用可编程器件 ,所有信号的时间关系均由软件设定 ,以计数方式产生 .不但电路简单 ,调试修改方便 ,更重要的是使各信号间的时序关系准确、稳定、可靠 .

According to the time sequence requirement for high frequency ground wave radar OSMAR2000 system, the paper presents a method to generate synchro signals and control signals with 82C54 PIT(Programmable Interval Timer). The synchro controller utilized the programmable chip. Thus the time relationship among all signals were set up by software and generated in the mode of count. The method not only simplified the circuit, but also made the time sequence of signals precise, stable, and credible. Moreover, it decreased the possibility of phasic errors generated by the system.