scholarly journals Gravity Compensation Using EGM2008 for High-Precision Long-Term Inertial Navigation Systems

Sensors ◽  
2016 ◽  
Vol 16 (12) ◽  
pp. 2177 ◽  
Author(s):  
Ruonan Wu ◽  
Qiuping Wu ◽  
Fengtian Han ◽  
Tianyi Liu ◽  
Peida Hu ◽  
...  
Keyword(s):  
High Precision ◽  
Inertial Navigation ◽  
Navigation Systems ◽  
Gravity Compensation ◽  
Inertial Navigation Systems

Problem of the Vertical Deflection in High-Precision Inertial Navigation

2020 ◽  
Vol 28 (4) ◽  
pp. 3-15
Author(s):  
V.G. Peshekhonov ◽  
◽  
Keyword(s):  
Systematic Error ◽  
High Precision ◽  
Navigation System ◽  
Inertial Navigation System ◽  
Inertial Navigation ◽  
Reference Ellipsoid ◽  
Navigation Systems ◽  
Vertical Deflection ◽  
Inertial Navigation Systems ◽  
Output Data

The paper addresses the systematic error of an inertial navigation system, caused by the discrepancy between the plumb line and the normal to the reference ellipsoid surface. The methods of this discrepancy estimation, and their use for correcting the output data of inertial navigation systems are studied.

The Fine System-Level Calibration Technique of Size Effect Error for the Fiber-SINS

2011 ◽  
Vol 383-390 ◽  
pp. 2060-2065
Author(s):  
Lu Feng Zhu ◽  
Chun Xi Zhang
Keyword(s):  
Kalman Filter ◽  
Size Effect ◽  
High Precision ◽  
Inertial Navigation ◽  
System Level ◽  
Navigation Systems ◽  
Hardware In The Loop ◽  
Inertial Navigation Systems ◽  
Calibration Technique ◽  
Practical Applications

A fine system-level calibration technique of size effect error is presented for Fiber-strap-down inertial navigation systems (Fiber-SINS) in this paper. When the strap-down system is mounted onto high precision turntable and rotating along predefined trajectory, the velocity errors can contain information related to the size effect error, which can be estimated accurately by Kalman filter. In this paper, principles of the calibration technique are emphasized, the model of the size effect error is presented and Hardware-in-the-Loop Simulation platform is designed to validate the efficiency of this technique. Results show that the calibration technique has the advantages such as simplicity and high precision. Thus it is of great importance for practical applications.

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