A calibration method of non-orthogonal redundant ring laser gyro inertial navigation system

2017 ◽  
Author(s):  
Chunfeng Gao ◽  
Qi Wang ◽  
Guo Wei ◽  
Zhihui Ying ◽  
Xingwu Long
Keyword(s):  
Navigation System ◽  
Ring Laser ◽  
Inertial Navigation System ◽  
Inertial Navigation ◽  
Calibration Method ◽  
Laser Gyro

scholarly journals Error Modeling, Calibration, and Nonlinear Interpolation Compensation Method of Ring Laser Gyroscope Inertial Navigation System

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Jianli Li ◽  
Yanhai Ma ◽  
Chen Xiyuan
Keyword(s):  
Navigation System ◽  
Ring Laser ◽  
Inertial Navigation System ◽  
Inertial Navigation ◽  
Calibration Method ◽  
Error Modeling ◽  
Working Environment ◽  
Nonlinear Interpolation ◽  
Ring Laser Gyroscope ◽  
Laser Gyroscope

In order to improve the precision of Strapdown Inertial Navigation System (SINS) and reduce the complexity of the traditional calibration method, a novel calibration and compensation scheme is proposed. An optimization calibration method with four-direction rotations is designed to calculate all error coefficients of Ring Laser Gyroscope (RLG) SINS in a series of constant temperatures. According to the actual working environment, the temperature errors of RLG SINS are compensated by a nonlinear interpolation compensation algorithm. The experimental results show that the inertial navigation errors of the proposed method are reduced.

Multi-Position Self-Calibration Method of Inertial Navigation System

2012 ◽  
Vol 580 ◽  
pp. 146-150
Author(s):  
Ji Wei Zhang ◽  
Xiao Dong Xu ◽  
Bo Wang
Keyword(s):  
Navigation System ◽  
Horizontal Plane ◽  
Inertial Navigation System ◽  
Inertial Navigation ◽  
Calibration Method ◽  
Scale Factor ◽  
Self Calibration ◽  
Attitude Angle ◽  
On Line

In order to solve the problem that in the dual axle rotating modulation inertial navigation system the angle between the horizon roller of the system and horizontal plane can't be removed, this paper provides an on-line self calibration method based on inertial navigation system, and this method realized the on-line self calibration of the inertial navigation system by calculating bias and scale factor both of the gyroscope and accelerometer, solving the problem that in the dual axle rotating modulation inertial navigation system the angle between the horizon roller of the system and horizontal plane can't be removed, providing an calculable basis for the prediction of attitude angle and realizing on-line autonomous self-calibration.

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