基于VxD的某型惯导仿真系统实时处理研究

Research on the Real Time Processing for the Simulation of Inertial Navigation System Based on VxD

文中针对某型惯导仿真系统数据实时处理中对严格定时等问题,提出了一种在Windows9x平台下实现实时处理的方案一利用VxD获取系统时钟中断。充分利用VxD在Windows9x的特权性,将实时数据的采集和发送放在Ring0层上进行,而将参数计算和功能调度程序则放在Ring3层上进行。成功解决了该惯导与某型飞机航电综合系统进行动态试验的问题。

This paper aimed at the problem of real time processing for the simulation of inertial navigation system,A method which carries out the real time processing in the Windows 9x system is proposed-Using the VxD to acquire real time clock interrupts.In order to take full advantage of the VxD's access control private in the Windows 9x system,it collects data and sends data on Ring 0, and that calulates the parameter and schedules the function on Ring 3. It successfully solved the problem of dynamic examination witch interconnected the inertial navigation system and the aerial electronic integrated system.