A new method of zero calibration of the strapdown inertial navigation system

Author

Sun, Feng ; Liu, Fengli ; Fang, Xirui

Author_Institution

Coll. of Autom., Harbin Eng. Univ., Harbin, China

fYear

2012

fDate

5-8 Aug. 2012

Firstpage

1586

Lastpage

1590

Abstract

A new method of zero calibration is proposed for fiber-optic gyroscope (FOG) and quartz accelerometer, according to the simplified output model of fiber-optic gyroscope and quartz accelerometer with the error factors of the three-axis turntable are analyzed. The traditional experimental method of zero calibration is to make the measurement axis directly change 180-degree, which introduces the misalignment of the inertial components into the experiment result, and cannot get relatively accurate zero error. This paper puts forward a new measurement method of zero calibration, which can effectively compensate for the impact of misalignment.

Keywords

accelerometers; calibration; fibre optic gyroscopes; inertial navigation; FOG; SiO₂; fiber-optic gyroscope; quartz accelerometer; strapdown inertial navigation system; three-axis turntable analysis; zero calibration; zero error factor; Accelerometers; Accuracy; Calibration; Educational institutions; Gyroscopes; Inertial navigation; Mathematical model; FOG; accelerometer; calibration; zero error;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechatronics and Automation (ICMA), 2012 International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4673-1275-2

Type

conf

DOI

10.1109/ICMA.2012.6284373

Filename

6284373