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兵工学报  2015 

基于最优二次型理论的滚转导弹三回路驾驶仪设计与研究

DOI: 10.3969/j.issn.1000-1093.2015.05.010, PP. 831-838

Keywords: 飞行器控制、导航技术,滚转导弹,三回路驾驶仪,最优二次型,通道耦合

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Abstract:

?建立了存在交叉耦合的滚转导弹动力学模型,并将通道耦合效应视为外界干扰,利用最优二次型(LQR)控制理论,提出了一种三回路驾驶仪的单输入多输出(SIMO)设计方法。分析了三回路驾驶仪的基本特点,并研究了权系数矩阵与驾驶仪性能指标之间的关系,可辅助设计者更合理地选择权系数矩阵。将考虑耦合的动力学模型视为多输入多输出(MIMO)系统,对滚转导弹控制系统进行了设计。设计结果表明:对于存在状态耦合的滚转导弹而言,以SIMO设计的三回路驾驶仪可以很好地抑制耦合的影响,与MIMO设计得到的控制律差异很小。通过对滚转导弹耦合系统的非线性数学仿真,验证了以上结论的正确性。

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