Mechanical analysis of orbit tracking movement of feed system in large spherical radio-telescope

2005 ◽  
Vol 26 (9) ◽  
pp. 1197-1203
Author(s):  
Liu Ming-zhi ◽  
Shen Yu-ru ◽  
Liu Jun ◽  
Na Bai
Keyword(s):  
Radio Telescope ◽  
Mechanical Analysis ◽  
Feed System ◽  
Orbit Tracking ◽  
Tracking Movement ◽  
Large Spherical

The designing, manufacturing, and testing of a dual-band feed system for the Parkes radio telescope

2005 ◽  
Vol 47 (3) ◽  
pp. 13-19 ◽  
Author(s):  
C. Granet ◽  
H.Z. Zhang ◽  
A.R. Forsyth ◽  
G.R. Graves ◽  
P. Doherty ◽  
...  
Keyword(s):  
Radio Telescope ◽  
Dual Band ◽  
Feed System

Development of a pilot of an Arecibo-type large spherical radio telescope for the square kilometre array

2001 ◽  
Vol 215 (11) ◽  
pp. 1321-1329 ◽  
Author(s):  
Y X Su ◽  
B Y Duan ◽  
R D Nan ◽  
B Peng
Keyword(s):  
Radio Telescope ◽  
Control Method ◽  
Parallel Manipulators ◽  
Approximate Model ◽  
Fine Tuning ◽  
Tracking Accuracy ◽  
Square Kilometre Array ◽  
Supporting System ◽  
Design Project ◽  
Large Spherical

An optomechatronics design project for the pilot of an Arecibo-type large spherical radio telescope for the square kilometre array (SKA) is proposed, concentrating on the feed-supporting system with large-span cables. The feed-supporting system consists of two parallel manipulators: the parallel cable manipulator, which provides a large workspace for the trajectory tracking and realizes the coarse tracking control, and the fine-tuning Stewart platform, which connects the parallel cable manipulator to the cabin structure and implements the high-accuracy requirement of tracking. In order to improve the real-time controllability, an approximate kinematics model of the parallel cable manipulator is developed using straight links to approximate the cables based on static equilibrium at low tracking velocity. A control strategy for the feed-supporting system is proposed using the independent control method, and the corresponding tracking accuracy of the coarse control and fine tuning is presented. The simulation results have supported the rationale of this approximate model of the parallel cable manipulator and the feasibility of this mechatronics design project for the SKA.

On the analysis of active reflector supporting manipulator for the large spherical radio telescope

Mechatronics ◽  
2004 ◽  
Vol 14 (9) ◽  
pp. 1037-1053 ◽  
Author(s):  
Xiaoqiang Tang ◽  
Jinsong Wang ◽  
Hui Zhang ◽  
Qiming Wang
Keyword(s):  
Radio Telescope ◽  
Active Reflector ◽  
Large Spherical

A new dual-reflector feed system for the Nancay radio telescope

1997 ◽  
Vol 45 (9) ◽  
pp. 1366-1373 ◽  
Author(s):  
C. Granet ◽  
G.L. James
Keyword(s):  
Radio Telescope ◽  
Feed System

The dual-band LP feed system for the Sardinia Radio Telescope prime focus

2010 ◽  
Author(s):  
G. Valente ◽  
T. Pisanu ◽  
P. Bolli ◽  
S. Mariotti ◽  
P. Marongiu ◽  
...  
Keyword(s):  
Radio Telescope ◽  
Dual Band ◽  
Feed System
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