Effect of East Gyro Drift and Initial Azimuth Error on the Compass Azimuth Alignment Convergence Time
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-05-14
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The effect of gyro constant drift and initial azimuth error on the convergence time of compass azimuth is analyzed in this article.
Using our designed compass azimuth alignment system, we obtain the responses of gyro constant drift and initial azimuth error in the frequency domain.
The corresponding response function in the time domain is derived using the inverse Laplace transform, and its convergence time is then analyzed.
The analysis results demonstrate that the convergence time of compass azimuth alignment is related to the second-order damping oscillation period, the gyro constant drift, and the initial azimuth error.
In this study, the error band is set to 0.01° to determine convergence.
When the gyro drift is less than 0.05°/h, compass azimuth alignment can converge within 0.9 damping oscillation periods.
When the initial azimuth error is less than 5°, compass azimuth alignment can converge within 1.4 damping oscillation periods.
When both conditions are met, the initial error plays a major role in convergence, while gyro drift has a smaller effect on convergence time.
Finally, the validity of our method is verified using simulations.
American Psychological Association (APA)
He, Dongxu& Zang, Xinle& Ge, Lei. 2020. Effect of East Gyro Drift and Initial Azimuth Error on the Compass Azimuth Alignment Convergence Time. Mathematical Problems in Engineering،Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1201964
Modern Language Association (MLA)
He, Dongxu…[et al.]. Effect of East Gyro Drift and Initial Azimuth Error on the Compass Azimuth Alignment Convergence Time. Mathematical Problems in Engineering No. 2020 (2020), pp.1-10.
https://search.emarefa.net/detail/BIM-1201964
American Medical Association (AMA)
He, Dongxu& Zang, Xinle& Ge, Lei. Effect of East Gyro Drift and Initial Azimuth Error on the Compass Azimuth Alignment Convergence Time. Mathematical Problems in Engineering. 2020. Vol. 2020, no. 2020, pp.1-10.
https://search.emarefa.net/detail/BIM-1201964
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1201964