基于FPGA的车载光电系统瞄准控制与实现

Design and Implementation of Optoelectronic System's Tracking Control Based on FPGA

光电系统瞄准线瞄准目标后,需根据工况以小于0.15 mil/s的角速率精确控制。但由于车辆快速移动时会存在摇摆、颠簸情况,导致系统瞄准线动态瞄准难。针对系统瞄准控制要求,分析了车载光电瞄准控制原理及数学模型,在此基础上提出了基于FPGA的车载光电瞄准控制非线性修正的实现方案,并设计了实用的修正电路,实现了瞄准过程控制。并在实际应用中得到验证,取得了较满意的效果。

Usually according to actually operational requirement,optoelectronic system’s line of sight must be control exactly in 0.15 mil/s when it aiming at a target. But the vehicle dynamic performance will cause shake and jolt,which due to the system’s tracking control is hard. In order to overcome the problem that makes the line of sight hard track the mobile or immobile targets. This paper analyzes the working theory and mathematical model about the tracking control for the vehicle’s Optoelectronic System,and introduces a kind of implementation methods based on FPGA and designs the circuit to correcting the tracking control’s output characteristic. The application result shows that the technical index could be med and the design mission could be completed.