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Hak-Keung Lam
King's College London
366Publications
43H-index
6,580Citations
Publications 366
Newest
#1Hong Lin (SZPT: Shenzhen Polytechnic)H-Index: 5
#2JamesLAM (HKU: University of Hong Kong)H-Index: 89
Last.Hak-Keung Lam ('KCL': King's College London)H-Index: 43
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Abstract In this paper, we investigate state estimation for systems with packet dropouts. According to whether there are acknowledgment (ACK) signals sent by the actuator to the estimator indicating the status of control packet dropouts or not, the systems are classified into two types: ACK systems, those with ACK signals, and non-ACK (NACK) systems, those without. We first obtain the optimal estimator (OE) for NACK systems with Markovian packet dropouts. However, the number of the components in...
Health technology research brings together complementary interdisciplinary research skills in the development of innovative health technology applications. Recent research indicates that artificial intelligence can help achieve outstanding performance for particular types of health technology applications. An evolutionary algorithm is one of the subfields of artificial intelligence, and is an effective algorithm for global optimization inspired by biological evolution. With the rapidly growing c...
#1Aiwen Meng (Yanshan University)H-Index: 1
#2Hak-Keung Lam ('KCL': King's College London)H-Index: 43
Last.Fucai Liu (Yanshan University)H-Index: 2
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The aim of this paper is to study the control synthesis and stability and positivity analysis under \(L_1\)-induced performance for positive systems based on a polynomial fuzzy model. In this paper, not only the stability and positivity analysis are studied but also the \(L_{1}\)-induced performance is ensured by designing a static output feedback polynomial fuzzy controller for the positive polynomial fuzzy (PPF) system. In order to improve the flexibility of controller implementation, imperfec...
#1Shuhuan Wen (Yanshan University)H-Index: 3
#2Di Zhang (Yanshan University)
Last.Yongsheng Zhao (Colombian Ministry of National Education)H-Index: 2
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ABSTRACTThe paper proposes a novel method for the nonlinear redundantly actuated parallel robot based on force/position hybrid control structure. In order to solve the limitation of making a compro...
#1Jie Fu (Chongqing University)H-Index: 13
#2Junfeng Bai (Chongqing University)H-Index: 3
Last.Hak-Keung Lam ('KCL': King's College London)H-Index: 43
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Abstract This paper presents the design method of an adaptive fuzzy controller (AFC) for a magnetorheological elastomer (MRE) vibration isolation system with time-varying sinusoidal excitations. In the first place, Kelvin model of MRE isolator without application of driving current is obtained by acceleration sweep experiments on a shake table, which establishes a foundation for the design of adaptive law. Secondly, a semi-active AFC with factor adjustment mechanism is designed based on the tran...
This paper examines the problem of membership-function-dependent controller design for a class of discrete-time T-S fuzzy systems. Based on the partition method of premise variable space, the original T-S fuzzy model is equivalently converted into a piecewise-fuzzy system. Then, by employing some staircase functions, the continuous membership functions are approximated by a series of discrete values via which the information of membership functions is brought into the stability analysis to reduc...
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