Title :
Noise analysis in satellite attitude estimation using angular rate and a single vector measurement
Author :
Firoozi, Dena ; Namvar, Mehrzad
Author_Institution :
Dept. of Electr. Eng., Sharif Univ. of Technol., Tehran, Iran
Abstract :
This paper investigates the effect of noisy measurements of the angular rate in a nonlinear attitude estimator for satellites. The attitude estimator uses measurement of a single attitude sensor such as sun, earth horizon, star tracker or magnetometer together with a rate gyro, and guarantees exponential convergence of the attitude estimation error to zero under no noise condition. This paper presents stochastic and deterministic upper bounds for the attitude estimation error affected by the noise in gyro. A realistic simulation is presented to illustrate the results.
Keywords :
artificial satellites; attitude measurement; noise measurement; sensors; stochastic processes; angular rate measurement; attitude estimation error exponential convergence; deterministic upper bound; earth horizon; magnetometer; noise analysis; rate gyro; satellite nonlinear attitude estimation; single attitude sensor; single vector measurement; star tracker; stochastic upper bound; Estimation error; Noise; Noise measurement; Observers; Satellites; Upper bound; Vectors;
Conference_Titel :
Decision and Control and European Control Conference (CDC-ECC), 2011 50th IEEE Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-61284-800-6
Electronic_ISBN :
0743-1546
DOI :
10.1109/CDC.2011.6161187
