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推力矢量防空导弹伺服弹性的抑制

, PP. 1480-1485

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Abstract:

大长径比,低弹性频率的推力矢量控制导弹,由于其喷管摆动形成的惯性力对弹性模态产生激振,使弹体控制中存在伺服弹性问题.为了解决该问题,对摆动喷管控制下的弹性弹体模型进行了分析,针对弹性模态对控制系统的影响途径,提出了双传感器布局及测量信号预综合的方法.在此基础上,基于Steiglitz-McBride系统辨识方法,设计一种自适应噪声抑制滤波器对测得信号中的弹性分量进行处理,取得导弹刚体运动的有用信号.仿真证明该方法有效提高了控制系统对弹体弹性特征变化的适应性.双传感器的使用也增加了测量及滤波系统的可靠性.

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