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弹道学报  2014 

多约束在线高斯伪谱末制导方法

Keywords: 高超声速飞行器,末制导,高斯伪谱法,多约束

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Abstract:

针对高超声速飞行器研究了一种既能保证终端位置、动压、法向过载约束,又能保证终端落角、落速约束的末段制导方法。该制导方法基于高斯伪谱法实时解算非线性最优控制问题以获得最优反馈控制,将一种初值猜测策略加入到高斯伪谱法解算过程中以加速算法收敛,并在无反馈信息的最后一个制导周期使用比例导引方法以保证飞行器准确命中目标。在三自由度模型各项拉偏情况下进行蒙特卡洛打靶实验,仿真结果表明,在较恶劣的飞行环境下,在线高斯伪谱制导方法具有很好的稳定性和鲁棒性。

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