DocumentCode :
3049241
Title :
On calibrating gyro orthogonal group in segments and compensating installation errors
Author :
Ma, Tao ; Gao, Yanbin
Author_Institution :
Coll. of Autom., Harbin Eng. Univ., Harbin, China
fYear :
2010
fDate :
8-10 June 2010
Firstpage :
272
Lastpage :
276
Abstract :
This paper considers the question of calibrating gyro orthogonal group in segments and compensating installation errors. A connection method to calibrating in segments is proposed to improve the calibration accuracy, and an approach to calculating and compensating the installation errors is presented in order to apply the complex non-linear model to the actual gyro orthogonal group expediently. According to the results of an experiment designed carefully, we can get the matrices which represent the non-orthogonal errors and the disalignment errors caused by the installation. After being compensating the installation errors, the gyros in the orthogonal group can be calibrated as single gyros. The single gyros are calibrated in segments, and a rotation approach is proposed to connect the discrete segments. The comprehensive utilization of a variety connection approaches makes residual errors be minimal. Eventually, we will find the approach proposed here is actually easy to implement and effective by an experiment of a fiber optic gyro orthogonal group.
Keywords :
calibration; error compensation; gyroscopes; inertial navigation; disalignment errors; error compensation; gyro orthogonal group; installation errors; nonorthogonal errors; rotation approach; segment calibration method; Calibration; Conferences; Gyroscopes; Least squares methods; Optical fibers; Sensors; USA Councils;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Systems and Control in Aeronautics and Astronautics (ISSCAA), 2010 3rd International Symposium on
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-6043-4
Electronic_ISBN :
978-1-4244-7505-6
Type :
conf
DOI :
10.1109/ISSCAA.2010.5633597
Filename :
5633597
Link To Document :
بازگشت