【摘要】 通常研究制导律性能时多将制导系统和飞控系统等理想化为单位1或是一阶滞后动力学环节,但这与实际模型并不是十分匹配,导致常用的制导律(如增强型比例导引律和一阶最优制导律等)直接应用于高阶制导系统模型仿真时会产生较大的脱靶量。为了克服这一缺点,提出一种考虑典型五阶制导系统动力学特性的最优制导律,并给出该种制导律基于最优控制理论的详细推导过程。通过仿真分析表明,该高阶制导律可以实现对目标直接撞击,制导精度较高,所需侧向转移速度较小。更多还原

【Abstract】 Usually guidance and control system is regarded as a zero or single-lag dynamic model,which does not completely match with the actual model,causing the common guidance laws( such as augmented proportional guidance law and single-lag optimal guidance law) to produce large miss distance when they are directly applied to the higher-order model. In order to overcome this shortcoming,a detailed derivation process of five-order optimal guidance law with optimal control theory is proposed. Through simulation analysis,it is cleared that this guidance law can achieve the goal of direct hit,higher guidance accuracy and smaller lateral divert velocity.更多还原