【摘要】 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。更多还原

【Abstract】 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.更多还原