Analysis of Deflection of Vertical Compensation for Inertial Navigation System
Joint Authors
Zhou, Zhaofa
Zhao, Junyang
Xu, Zhihao
Hao, Shiwen
Zhang, Zhili
Chang, Zhenjun
Source
Mathematical Problems in Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-12-02
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
With the development of high-precision inertial navigation systems, the deflection of vertical (DOV), gravity disturbance, is still one of the main error sources that restrict navigation accuracy.
For the DOV compensation of the Strapdown Inertial Navigation System (SINS) problem, the influences of the calculation degree of the spherical harmonic coefficient and the calculation error of the DOV on the compensation effect were studied.
Based on the SINS error model, the error propagation characteristics of the DOV in SINS were analyzed.
In addition, the high-precision global gravity field spherical harmonic model EIGEN-6C4 was established and the influence comparative analysis of the calculation degree of the spherical harmonic coefficient on the DOV compensation of SINS in different regions was carried out.
Besides, the influence of the calculation error of the DOV on the compensation was emphatically analyzed.
Finally, the vehicle experiment verified the feasibility of compensation in SINS based on the gravity field spherical harmonic model.
The simulation and experiment results show that it is necessary to consider the influence of the calculation degree and the calculation error of the DOV on the compensation for long-time high-precision SINS with the position accuracy of 0.3 nm/h, while the SINS with general requirements for position accuracy can ignore the impact.
American Psychological Association (APA)
Hao, Shiwen& Zhang, Zhili& Zhou, Zhaofa& Zhao, Junyang& Chang, Zhenjun& Xu, Zhihao. 2020. Analysis of Deflection of Vertical Compensation for Inertial Navigation System. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1193644
Modern Language Association (MLA)
Hao, Shiwen…[et al.]. Analysis of Deflection of Vertical Compensation for Inertial Navigation System. Mathematical Problems in Engineering No. 2020 (2020), pp.1-15.
https://search.emarefa.net/detail/BIM-1193644
American Medical Association (AMA)
Hao, Shiwen& Zhang, Zhili& Zhou, Zhaofa& Zhao, Junyang& Chang, Zhenjun& Xu, Zhihao. Analysis of Deflection of Vertical Compensation for Inertial Navigation System. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1193644
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1193644