Results 31 to 40 of about 14,071 (249)

About the loss of robustness of the LQG/LTR compensator [PDF]

INCAS Bulletin
It is known that the optimal LQR regulator (Linear Quadratic Regulator) with full state feedback has remarkable robustness properties, defined by gain margins of (1/2, ) and phase of at least ± 60 degrees.
Ioan URSU, Adrian TOADER
doaj   +1 more source

Secure LQG control for a Quadrotor under false data injection attacks

IET Control Theory & Applications, 2022
The linear quadratic Gaussian (LQG) control for a quadrotor unmanned aerial vehicle (UAV) under false data injection attacks is studied. The LQG control depends on optimal state estimation, while this type of attacks makes the optimal state estimation ...
Hong Lin, Pei Sun, Chenxiao Cai, Shan Lu, He Liu   +4 more
doaj   +1 more source

Experimental simulation of loop quantum gravity on a photonic chip

npj Quantum Information, 2023
The unification of general relativity and quantum theory is one of the fascinating problems of modern physics. One leading solution is Loop Quantum Gravity (LQG).
Reinier van der Meer, Zichang Huang, Malaquias Correa Anguita, Dongxue Qu, Peter Hooijschuur, Hongguang Liu, Muxin Han, Jelmer J. Renema, Lior Cohen   +8 more
doaj   +1 more source

A study on LQG/LTR control for damping inter-area oscillations in power systems [PDF]

, 2007
Published ...
Chaudhuri,B., I.M. Jaimoukha (7207067), Zolotas,A.C., Jaimoukha,I.M., Petr Korba (7209479), Korba,P., B. Chaudhuri (7207064), Balarko Chaudhuri (16154039), Imad M Jaimoukha (16154048), Argyrios C. Zolotas (7122554), Argyrios C Zolotas (16154045)   +10 more
core   +1 more source

The LQG/LTR control method for turboshaft engine with variable rotor speed based on torsional vibration suppression

Journal of Low Frequency Noise, Vibration and Active Control, 2020
In order to realize the rapid response control for turboshaft engine during the process of variable rotor speed, the linear quadratic Gaussian with loop transfer recovery (LQG/LTR) control method for turboshaft engine based on torsional vibration ...
Yong Wang, Qiangang Zheng, Haibo Zhang, Mingyang Chen   +3 more
doaj   +1 more source

Output-Feedback Synthesis Orbit Geometry: Quotient Manifolds and LQG Direct Policy Optimization [PDF]

IEEE Control Systems Letters
We consider direct policy optimization for the linear-quadratic Gaussian (LQG) setting. Over the past few years, it has been recognized that the landscape of dynamic output-feedback controllers of relevance to LQG has an intricate geometry, particularly ...
Spencer Kraisler, M. Mesbahi
semanticscholar   +1 more source

LQG Graphon Mean Field Games: Analysis via Graphon-Invariant Subspaces [PDF]

IEEE Transactions on Automatic Control, 2020
This article studies approximate solutions to large-scale linear quadratic stochastic games with homogeneous nodal dynamics' parameters and heterogeneous network couplings within the graphon mean field game framework.
Shuang Gao, Peter E. Caines, Min-Yi Huang   +2 more
semanticscholar   +1 more source

Liquiritin and Liquiritigenin Induce Melanogenesis via Enhancement of p38 and PKA Signaling Pathways

Medicines, 2019
Background: Liquiritin (LQ) and its aglycone, liquiritigenin (LQG), are major flavonoids in licorice root (Glycyrrhiza spp.). Our preliminary screening identified LQ and LQG, which promote melanin synthesis in the melanoma cells.
Takuhiro Uto, Tomoe Ohta, Akihisa Yamashita, Shunsuke Fujii, Yukihiro Shoyama   +4 more
doaj   +1 more source

LQG Self-Tuners [PDF]

IFAC Proceedings Volumes, 1983
Abstract This paper surveys self-tuning regulators based on linear quadratic gaussian (LQG) control design and recursive parameter estimation. Only single-input single-output systems are considered. The linear quadratic design method is reviewed. Theoretical issues like convergence, persistent excitation and closed loop identifiability are discussed.
openaire   +2 more sources

Adaptive Semiactive Cable Vibration Control: A Frequency Domain Perspective

Shock and Vibration, 2017
An adaptive solution to semiactive control of cable vibration is formulated by extending the linear quadratic Gaussian (LQG) control from time domain to frequency domain.
Z. H. Chen, Y. Q. Ni
doaj   +1 more source