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基于无扰滤波器和AED-ADT的无扰切换控制 认领 引用
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作者 赵海华 赵中原 邓志良 《计算技术与自动化》 2024年第3期15-20,共6页
为避免切换系统在切换瞬间出现控制信号颠簸,保证控制信号的连续性,提出了一种基于无扰滤波器和可容许边依赖平均驻留时间(AED-ADT)的无扰切换控制方法。首先,描述控制信号在切换时刻的颠簸,使用扩展AED-ADT方法对切换信号进行约束。其... 为避免切换系统在切换瞬间出现控制信号颠簸,保证控制信号的连续性,提出了一种基于无扰滤波器和可容许边依赖平均驻留时间(AED-ADT)的无扰切换控制方法。首先,描述控制信号在切换时刻的颠簸,使用扩展AED-ADT方法对切换信号进行约束。其次,基于扩展AED-ADT方法设计无扰滤波器,并利用多Lyapunov函数稳定性分析方法对所设计控制器进行稳定分析,给出系统有限逗留时间和无限逗留时间指数稳定充要条件。最后,通过两个不同的AED-ADT参数仿真实验验证所设计算法的有效性。 展开更多
关键词 切换线性系统 无扰切换 AED-ADT 多Lyapunov函数方法
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Generalized Maupertuis' Principle with Applications 认领 引用
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作者 Wei CHENG 《Acta Mathematica Sinica,English Series》 SCIE CSCD 2012年第11期2153-2160,共8页
We give a rigorous proof of the equivalence of Manes supercritical potential and the minimal action with respect to an associated Jacobi-Finsler metric. As a consequence, we give an explicit representation of the weak... We give a rigorous proof of the equivalence of Manes supercritical potential and the minimal action with respect to an associated Jacobi-Finsler metric. As a consequence, we give an explicit representation of the weak KAM solutions of one-dimensional mechanical systems without the quadratic assumption on the kinetic energy term of the Hamiltonians, and a criterion of the integrability result for such a system of arbitrary degree of freedom by the regularity assumption on Mather's a- function is discussed. 展开更多
关键词 Generalized Maupertuis' principle weak KAM solutions a-function
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Some Kazhdan-Lusztig Coefficients of Affine Weyl Group of Type B2 认领 引用 被引量:2
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作者 Ge Feng Liping Wang 《Algebra Colloquium》 SCIE CSCD 2021年第4期541-554,共14页
Let(W,S)be the affine Weyl group of type B2,on which we consider the length function e from W to N and the Bruhat order≤.For y<w in W,letμ(y,w)be the coefficient of q1/2(e(w-e(y)-1)) in Kazhdan-Lusztig poly... Let(W,S)be the affine Weyl group of type B2,on which we consider the length function e from W to N and the Bruhat order≤.For y<w in W,letμ(y,w)be the coefficient of q1/2(e(w-e(y)-1)) in Kazhdan-Lusztig polynomial Py,w∈Z[q].We determine someμ(y,w)for y∈c0 and w∈c2,where c0 is the lowest two-sided cell of B2 and c2 is the higher one.Furthermore,we get some consequences using left or right strings and some properties of leading coefficients. 展开更多
关键词 Kazhdan-Lusztig polynomials left(resp.righttwo-sided)cells a-function affine Weyl groups leading coefficients
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