Title :
Robust antenna pointing control for TDRS spacecraft
Author :
Tham, Q. ; Ly, J.H. ; Chiang, R.Y. ; Bender, D. ; Eyerly, B.N.
Author_Institution :
Hughes Aircraft Co., El Segundo, CA, USA
Abstract :
This paper discusses the pointing and control of NASA´s next generation tracking and data relay satellite (TDRS) antennae using classical design techniques and modern multivariable analysis techniques. Classical loop shaping realizes a design with good single loop stability margins. Multiloop stability margin analysis verifies stability robustness against sensor parametric uncertainties, modal frequency shifts and gain/phase variations of the integrated control system
Keywords :
aerospace control; artificial satellites; feedforward; position control; robust control; sampled data systems; satellite antennas; stability criteria; tracking; NASA; TDRS spacecraft; antenna pointing control; feedforward; gain/phase variations; loop shaping; modal frequency shifts; parametric uncertainty; robust control; sampled data systems; stability margins; tracking data relay satellite; Centralized control; Frequency; Relays; Robust control; Robust stability; Satellite antennas; Sensor systems; Space vehicles; Stability analysis; Uncertainty;
Conference_Titel :
Decision and Control, 1997., Proceedings of the 36th IEEE Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-4187-2
DOI :
10.1109/CDC.1997.649825
