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Lock-In Amplifier Technology in Laser Gyroscope North Finder of Constant Rate Biasing
Joint Authors
Zhu, Peihao
Wang, Bin
Zhang, Wei
Wang, Zhanqing
Source
Mathematical Problems in Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-04-11
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
This paper presents a new type of strapdown north finder.
A simplified configuration is proposed, including three parts: a pendulous force-feedback accelerometer, a ring laser gyroscope, and a single-axis rotating platform.
The dynamic northfinding scheme of continuous rotation is adopted to eliminate the lock-in region of the laser gyroscope and to modulate the weak attitude signals; meanwhile the complex leveling process is avoided in this proposed configuration.
To suppress the drift noises of the accelerometer and gyroscope, two digital lock-in amplifiers are used to extract the weak attitude signals.
Simulation results show that the north finder can determine the heading angle in 72 s, when the rotating rate is 10°/s with the maximum heading error less than 1.0′; meanwhile the horizontal attitude angles as well as the constant drift noises of the inertial components could also be obtained.
American Psychological Association (APA)
Wang, Bin& Zhang, Wei& Wang, Zhanqing& Zhu, Peihao. 2013. Lock-In Amplifier Technology in Laser Gyroscope North Finder of Constant Rate Biasing. Mathematical Problems in Engineering،Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-1010973
Modern Language Association (MLA)
Wang, Bin…[et al.]. Lock-In Amplifier Technology in Laser Gyroscope North Finder of Constant Rate Biasing. Mathematical Problems in Engineering No. 2013 (2013), pp.1-11.
https://search.emarefa.net/detail/BIM-1010973
American Medical Association (AMA)
Wang, Bin& Zhang, Wei& Wang, Zhanqing& Zhu, Peihao. Lock-In Amplifier Technology in Laser Gyroscope North Finder of Constant Rate Biasing. Mathematical Problems in Engineering. 2013. Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-1010973
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1010973