射频仿真系统中目标回波距离处理器

Distance Simulator of Echo Signal in Radio Frequency Simulation System

描述了射频仿真系统中使用的目标回波距离处理器。它可从主控计算机接收目标与导弹之间的距离信息，根据射频信号的运动距离和时间之间的对应关系，用延迟时间来仿真目标与导弹之间的距离。文中通过软件置初值、硬件计数相结合的方法实现的延时电路，既具有高的时间分辨率，又可灵活地改变延时时间的大小。此外，本目标回波距离处理器还可以仿真距离变化速率，调节回波脉冲的宽度。

Describes a distance simulator of echo signal used in radio frequency simulation system. It can receive the distance message between goal and missile from main control computer. According to the relation between distance and time, it can use a delay time to simulate the distance between the goal and the missile and realize the time delay by software to set value and hardware to count the data. It can also simulate the speed about distance changing and adjust the pulse width of echo signal.