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Parametric Command Method in Sliding Mode Control for Near Space Vehicle
Author(s): 
Pages: 1-5
Year: Issue:  4
Journal: Journal of Ballistics

Keyword:  near space vehiclelongitudinal modelfeedback linearizationsliding mode controlparametric command;
Abstract: 为了研究临近空间飞行器滑模控制方法,建立了临近空间飞行器无动力滑翔阶段的纵向运动模型,并应用动态逆方法证明模型是可逆的,且可实现绕质心运动模型的线性化.以动态逆控制为内环,滑模控制为外环,设计了飞行器纵向控制系统.从提高信息利用率和增加控制系统设计自由度的角度出发,提出俯仰角变化率指令参数化计算方法.仿真结果表明:纵向控制系统可以准确跟踪攻角指令,满足控制精度要求;俯仰角变化率指令参数主要影响控制系统的动态响应能力和稳态控制精度.
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