The fundamental dominance condition for MIMO systems with parametric uncertainty

1996 ◽  
Author(s):  
E. Kontogiannis
Keyword(s):  
Mimo Systems ◽  
Parametric Uncertainty ◽  
Dominance Condition

Robust PID Controller Tuning for 2D Gantry Crane Using Kharitonov's Theorem and Differential Evolution Optimizer

2014 ◽  
Vol 903 ◽  
pp. 267-272 ◽  
Author(s):  
Mahmud Iwan Solihin ◽  
Mah Chia Wen ◽  
Fahri Heltha ◽  
Lim Chong Lye
Keyword(s):  
Differential Evolution ◽  
Robust Stability ◽  
Stability Criterion ◽  
Pid Controller ◽  
Mimo Systems ◽  
Design Procedure ◽  
Parametric Uncertainty ◽  
Gantry Crane ◽  
Pid Controller Tuning ◽  
Robustness Criterion

PID (proportional+integral+derivative) controller is well known as a simple and easy-to-implement controller. However, the design procedure is not straightforward for multi-input multi-output (MIMO) systems. It is even more complicated when robustness criterion must be handled. In this paper, a stable robust PID controller for anti-swing control of automatic gantry crane is proposed. The proposed method employs an automatic tuning using DE (differential evolution) to search for a set of PID controller gains that satisfy Kharitonovs polynomials robust stability criterion. This robust stability criterion is used to deal with parametric uncertainty occurs in gantry crane model. The simulation results show that a satisfactory robust PID control performance can be achieved. The PID controller is able to quickly move the cart of the crane while suppressing the swing of the payload for various conditions, i.e. payload mass and cable length variations.

A Low-Profile Dual-Polarized Directional Antenna for Enhancing Channel Capacity in Indoor MIMO Systems

2010 ◽  
Vol E93-B (10) ◽  
pp. 2570-2577 ◽  
Author(s):  
Daisuke UCHIDA ◽  
Hiroyuki ARAI ◽  
Yuki INOUE ◽  
Keizo CHO
Keyword(s):  
Channel Capacity ◽  
Mimo Systems ◽  
Directional Antenna ◽  
Low Profile ◽  
Dual Polarized

MMSE-Based Precoders for Cooperative MIMO Systems with Direct Link

2012 ◽  
Vol E95.B (9) ◽  
pp. 2999-3002
Author(s):  
Byungwook YOO ◽  
Chungyong LEE
Keyword(s):  
Mimo Systems ◽  
Direct Link ◽  
Cooperative Mimo
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