Title :
The identification and compensation of temperature model for Hemispherical resonator gyro signal
Author :
Li, Boran ; Wu, Yiran ; Wang, Changhong
Author_Institution :
Space Control & Inertial Technol. Res. Center, Harbin Inst. of Technol., Harbin, China
Abstract :
Being affected by materials processing and working environment, Hemispherical resonator gyro(HRG) output signal inevitable changes with environment temperature. In this paper, reasons for temperature drift of HRG are analyzed and the temperature model, based on a series of temperature tests, is identified by finite memory recursive least square algorithm. After comparing with original HRG output, the model is proved effectively in compensation of HRG temperature drift and improvement of HRG navigation precision.
Keywords :
aircraft navigation; gyroscopes; least squares approximations; HRG navigation precision; HRG temperature drift; environment temperature; finite memory recursive least square algorithm; hemispherical resonator gyro signal; materials processing; temperature model; Analytical models; Data models; Harmonic analysis; Oscillators; Temperature distribution; Temperature sensors;
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
DOI :
10.1109/ISSCAA.2010.5633375
