The invention relates to an optimal interception guidance method, in particular to an optimal interception guidance method considering navigation errors. The invention aims to solve the problem that due to the existence of navigation errors in an existing actual task, if interception is carried out according to a nominal design orbit, the terminal interception precision possibly cannot meet the initial condition requirements of terminal guidance, so that the interception task is informed of failure. The method comprises the following steps of: 1, searching a terminal interception moment with optimal energy in an interception time range given by a task by adopting a one-dimensional search algorithm, and calculating to obtain a pulse applied at an initial moment; secondly, under the condition that navigation errors exist at the initial moment, the pulse applying errors at the optimal interception moment and the initial moment are solved, and meanwhile corresponding terminal interception errors are given; 3, the corrected pulse amplitude and the analytical relation between the corrected terminal interception error and the correction moment are determined; and 4, determining a correction pulse applying moment or a corresponding time range. The method is applied to the technical field of aircraft guidance control.

    一种考虑导航误差的最优拦截制导方法,本发明涉及最优拦截制导方法。本发明的目的是为了解决现有实际任务中导航误差的存在,若按照标称设计轨道进行拦截,则终端拦截精度很有可能无法满足末制导的初始条件要求,从而导致拦截任务以失败告终的问题。过程为:一、在任务给定的拦截时间范围内采用一维搜索算法寻找能量最优的终端拦截时刻,并计算得到初始时刻施加的脉冲;二、在初始时刻导航误差存在的情况下,求解最优拦截时刻和初始时刻施加脉冲的误差,同时给出相应的终端拦截误差;三、确定修正脉冲幅值以及修正后的终端拦截误差与修正时刻的解析关系;四、确定修正脉冲施加时刻或对应的时间范围。本发明用于飞行器制导控制技术领域。


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    Titel :

    Optimal interception guidance method considering navigation error


    Weitere Titelangaben:

    一种考虑导航误差的最优拦截制导方法


    Beteiligte:
    ZHANG GANG (Autor:in) / MA HUIDONG (Autor:in) / LI HUAYI (Autor:in) / WU BAOLIN (Autor:in) / ZHOU DI (Autor:in)

    Erscheinungsdatum :

    2022-07-22


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64G Raumfahrt , COSMONAUTICS / F41H Panzerung , ARMOUR