New estimates of upper bounds for the solutions of the continuous algebraic Riccati equation and the redundant control inputs problems
New estimates of upper bounds for the solutions of the continuous algebraic Riccati equation and the redundant control inputs problems
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连续代数 Riccati 方程解和冗余控制输入问题的上限的新估计
DOI:
10.1016/j.automatica.2020.108936
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发表时间:
2020-06
期刊:
影响因子:
6.4
通讯作者:
Bai Ying
中科院分区:
文献类型:
--
作者:
Liu Jianzhou;Wang Li;Bai Ying
In this paper, according to the properties of the given matrix of the continuous algebraic Riccati equation (CARE), a new positive semi-definite matrix is constructed. And then basing on some significant properties of the matrix eigenvalue and eigenvalue inequality, using inequality techniques and formula transformation and the new positive semi-definite matrix, a class of new upper bounds of the CARE is obtained. Consequently, in redundant control inputs system, by the derived bounds, inequality techniques, and the important property of the matrix eigenvalue and singular value, we present some new sufficient conditions to guarantee the decrease of controller gain when increasing the control input, which are more adaptable than previous results. Finally, we show the effectiveness of the results by numerical examples.
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DOI:
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期刊:
Science in China Series F: Information Sciences
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