Title :
Improved TRIAD for star sensor
Author :
Feng-gen, Chen ; Bin, Liang ; Tao, Zhang ; Jun, Yang
Author_Institution :
Dept. of Autom., Tsinghua Univ., Beijing, China
Abstract :
TRIAD is an attitude determination algorithm, which only uses two observed vectors to calculate the attitude of spacecrafts. It has disadvantage of asymmetry using the two observed vectors and not making full use of all the observed star vectors captured by the star sensor. This paper presented an Improved TRAID algorithm to solve the problems above. It integrates all observed vectors on the basis of linear estimation theory. Comparing the experiment results of Improved TRIAD algorithm with the Traditional TRIAD and QUEST algorithm, it shows that the Improved TRAID algorithm can get higher attitude accuracy than the other two algorithms.
Keywords :
aerospace instrumentation; estimation theory; sensors; space vehicles; vectors; attitude determination algorithm; improved TRIAD algorithm; linear estimation theory; observed star vector; spacecraft attitude calculation; star sensor; traditional QUEST algorithm; traditional TRIAD algorithm; Out of order; Space vehicles; Vectors; QUEST; TRIAD; attitude determination; star sensor;
Conference_Titel :
Computer Science and Network Technology (ICCSNT), 2011 International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4577-1586-0
DOI :
10.1109/ICCSNT.2011.6181958
