| As the modern local wars on a higher precision guidance requirements, based onclassical control and modern control theory control strategy is difficult to meet. Shotin the body of the missile flight parameters of rapid change, the traditional PIDcontrol method can not meet the requirements of dynamic control. Conventionalfuzzy control because the control parameters and a fixed limit membership functions,based on individual expertise and limited control rules to determine the rough andimperfect, can not adapt to ongoing changes in the process.With the continuous development of modern control theory, many new controlstrategy constantly applied to the missile control system, and get better control effect.In this paper, the missile in flight with a non-linear, coupled and time-varyingcharacteristics, combined with the traditional PID control and intelligent controltheory, the design of a composite based on adaptive fuzzy PID control strategy of themissile control system to achieve fuzzy controller parameters, membership functionsand control rules to improve the self-tuning control system for missile externaldisturbance and parameter variation robustness adaptability.This paper first established the kinetics and kinematics of the missilemathematical model, and after a simple and reasonable simplification, and thendescribes the structure of adaptive fuzzy PID control and design of fuzzy controlusing PID control to overcome the inherent accuracy of blind spots. Missile controlsystems in order to improve quickly after the dramatic changes in the ability ofautomatic stabilizers, that is to reflect changes in the error rate in the vicinity of zero,the text control using fuzzy sets detailed rules for the fuzzy reasoning method of theprogram the controller parameters online for self-the entire set. On this basis, themissile yaw channel, for example, adaptive fuzzy PID controller design. Finally, thecontroller using MATLAB simulation, the effect of control carried out a detailedanalysis. The simulation results show that the design of the controller regardless ofthe text in the regulation of time, or in the overshoot of the PID control is better than conventional. In general faster dynamic response, high stability, adaptive anti-interference ability and good robustness characteristics. The parameters to select theappropriate conditions, can be realized without overshoot control. |
