CAJ | 학술논문

针对防空导弹弹道跟踪问题，基于反馈线性化理论设计了一种弹道跟踪制导律。使用反馈线性化方法对导弹质点运动模型精确线性化；利用该线性化模型和线性二次型最优调节器(LQR)理论设计跟踪制导律，并给出制导系统工作流程；在存在初始误差和随机风干扰的条件下，将所设计的跟踪制导律应用于导弹质点运动仿真，并与基于小扰动模型设计的 LQR跟踪制导律进行比较。结果表明，基于反馈线性化所设计的制导律性能更好。
침대방공도탄탄도근종문제，기우반궤선성화이론설계료일충탄도근종제도률。사용반궤선성화방법대도탄질점운동모형정학선성화；이용해선성화모형화선성이차형최우조절기(LQR)이론설계근종제도률，병급출제도계통공작류정；재존재초시오차화수궤풍간우적조건하，장소설계적근종제도률응용우도탄질점운동방진，병여기우소우동모형설계적 LQR근종제도률진행비교。결과표명，기우반궤선성화소설계적제도률성능경호。
A traj ectory tracking guidance law was designed for surface-to-air missile based on feedback linearization method.The feedback linearization method was used to get an accurate linear model from the mass model of missile.A guidance law was designed with the linear model and linear quadratic regulator(LQR)theory,and the work flow chart of the guidance system was proposed.A digital simulation with initial errors and random wind was carried out,and the feedback linearization(FL)guidance law was compared with LQR guidance law based on the small perturbance linear model.Results show that the FL guidance law obtained by the accurate linear model is better than LQR guidance law.