针对捷联反射镜稳定平台处于跟踪状态时,机动目标及脱靶量时滞导致跟踪精度降低的问题,结合模糊控制及动态高型技术提出了一种改进的控制算法。传统动态高型控制方法在原有控制系统基础上动态并入积分环节以构成高型系统从而减小跟踪误差,但积分环节的并入和退出时机不易掌握,使得系统动态性能恶化,引入模糊控制理论建立系统跟踪误差及误差微分和积分环节系数之间的关系,使得动态调整积分策略为渐变而非“开关”。经仿真验证,该方法相较于普通PID控制方法跟踪精度提高了1个数量级,对工程实践具有指导意义。

When the strapdown mirror stabilized platform is in the tracking state, the tracking accuracy will be decreased due to the maneuvering target and off-target delay. An improved tracking algorithm combining the fuzzy logic control and the dynamic high-type control is proposed in this paper. The traditional dynamic high-type control method is developed when the original control system integrates into the integration dynamically. Such high-type system is used to reduce the tracking error. The dynamic performance of the system will be undermined without easy access to the integration and exit timing of the integration. To solve the problem, a kind of control system under the fuzzy control theory is established to measure the tracking error and clarify the relation between the error differential and the integral part coefficient, so that the dynamic adjustment integral strategy is gradual rather than switch. The simulation results show that the tracking algorithm can improve the tracking accuracy by one order of magnitude compared with the ordinary PID control methods. It is of guiding significance to engineering practice.