Title :
Accuracy improvement of ship mounted tracking antenna for satellite communications
Author :
Ming, Aiguo ; Yamaoka, Tempei ; Kida, Takashi ; Kanamori, Chisato ; Satoh, Motoo
Author_Institution :
Dept. of Mech. Eng. & Intelligent Syst., Univ. of Electro-Commun., Chofu, Japan
Abstract :
Recently, data traffic for satellite communications is increasing rapidly, due to various new purposes besides the conventional voice phone and facsimile. For the reason, it is necessary to realize high frequency communications, which is to be assured by high accuracy of tracking control of an antenna. To meet the needs, this paper aims at the accuracy improvement of conventional ship mounted tracking antennas by introducing H-infinity control. In this paper, the basic characteristics of tracking antenna are investigated by experiments and the model of the antenna for controller design is established. Based on the model, an H-infinity controller is designed and implemented to the antenna. Experimental results show that the tracking accuracy can be improved to ±0.3 [deg], which is five times higher than that by the conventional controller.
Keywords :
H∞ control; control system synthesis; mobile communication; satellite antennas; H-infinity control; controller design; data traffic; satellite communications; ship mounted tracking antenna; tracking control; Communication system control; Control systems; DC motors; Frequency; H infinity control; Marine vehicles; Mobile communication; Pulse width modulation; Satellite antennas; Satellite communication;
Conference_Titel :
Mechatronics and Automation, 2005 IEEE International Conference
Conference_Location :
Niagara Falls, Ont., Canada
Print_ISBN :
0-7803-9044-X
DOI :
10.1109/ICMA.2005.1626753
