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Research on Robust Stability Analysis and Worst Case Identification Methods for Parameters Uncertain Missiles
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 Title & Authors
Research on Robust Stability Analysis and Worst Case Identification Methods for Parameters Uncertain Missiles
Hou, Zhenqian; Liang, Xiaogeng; Wang, Wenzheng;
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For robust stability analysis of parameters uncertainty missiles, the traditional frequency domain method can only analyze each respective channel at several interval points within uncertain parameter space. Discontinuous calculation and couplings between channels will lead to inaccurate analysis results. A method based on the -gap metric is proposed, which is able to comprehensively evaluate the robust stability of missiles with uncertain parameters; and then a genetic-simulated annealing hybrid optimization algorithm, which has global and local searching ability, is used to search for a parameters combination that leads to the worst stability within the space of uncertain parameters. Finally, the proposed method is used to analyze the robust stability of a re-entry missile with uncertain parameters; the results verify the feasibility and accuracy of the method.
parameter uncertainty;robust stability;-gap metric;hybrid optimization;
 Cited by
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