The Six-Position Calibration Technique of Gyro Bias for Rotational Inertial Navigation System Based on Ring Laser Gyroscope

Yu, Haesung; Kim, Cheon-Joong; Lee, Inseop; Oh, Ju-Hyun; Sung, Chang-Ky; Lee, Sangjeong

doi:2019.22.2.189

J. KIMS Technol > Volume 22(2); 2019 > Article

Research Paper

Journal of the Korea Institute of Military Science and Technology 2019;22(2):189-196.
DOI: https://doi.org/10.9766/KIMST.2019.22.2.189

The Six-Position Calibration Technique of Gyro Bias for Rotational Inertial Navigation System Based on Ring Laser Gyroscope

Haesung Yu, Cheon-Joong Kim, Inseop Lee, Ju-Hyun Oh, Chang-Ky Sung, Sangjeong Lee

¹The 3rd Research and Development Institute, Agency for Defense Development,
²Department of Electronics Engineering, Chungnam National University,

링 레이저 자이로 기반 회전형 관성항법장치를 위한 6-자세 자이로 바이어스 교정 방법

유해성, 김천중, 이인섭, 오주현, 성창기, 이상정

¹국방과학연구소 제3기술연구본부
²충남대학교 전자전파정보통신공학과

Abstract

The inertial sensor errors in SDINS(Strapdown Inertial Navigation System) can be compensated by rotating the inertial measurement unit and it is called RINS(Rotational Inertial Navigation System). It is assumed that the error of the inertial sensor in RINS is a static bias. However, the error of the inertial sensor actually developed and produced is not a static bias due to the change of the temperature applied to the sensor and the influence of the earth's gravity acceleration. In this paper, we propose a six-position gyro bias calibration method to evaluate the gyro bias required for RINS and present the test results of applying it to a ring laser gyro inertial navigation system under development.

Key Words: Six-Position Calibration, Ring Laser Gyro, Rotational Inertial Navigation System