To achieve better impact effect, impact point error is of first importance, terminal velocity and angle of reentry vehicle are also needed to satisfy the expected value. This paper investigates the optimal guidance law for reentry vehicle. Guidance equation is expressed in longitudinal and lateral plane respectively, needed guidance command of angle of attack and sideslip angle is generated. Guidance command of angle of attack and sideslip angle is appended when considering reentry velocity. Synthesized guidance command is the sum of needed guidance command and appended guidance command. Effect of attitude control for reentry vehicle is analyzed using optimal guidance; the attitude of vehicle is stable and is guided to target point precisely. Trendline of landing error, reentry velocity and terminal angle varying with reentry time are analyzed, simulation results show that optimal guidance law is proper and satisfies the demand of impact point error, terminal velocity and angle.


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    Title :

    Optimal Guidance Law Design for Reentry Vehicles with Terminal Velocity and Angle Constraints



    Published in:

    Publication date :

    2012-01-24


    Size :

    5 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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