基于VxWorks下PCI总线的窄带中频信号产生器的实现

The implementation of narrowband intermediate frequency signals generator based on PCI bus under VxWorks

本文介绍了一种基于VxWorks下PCI总线的窄带中频信号产生的方法,并阐述了其实现过程。该设计利用VxWorks的实时响应性能和PCI总线的高速传输性能保证了系统的实时性,并通过直接数字合成技术(DDS)产生了高质量的中频信号,实际证明该系统可有效的使用在雷达仿真系统中。

This article presents a scheme of narrowband IF （Intermediate Frequency） signals generator based on PCI bus under VxWorks, and its implementation as well. The real time processing is guaranteed by RTOS （Real Time Operation System） VxWorks and high-speed transmission performance of PCI local Bus. Moreover, high-quality IF signals are generated by DDS technology. Its application in radar simulation system shows that this implementation is effective.