NDLI: Data processing method of multi-position strap-down north seeking system based on SVD

Content Provider	IEEE Xplore Digital Library
Author	Shen Cheng-wu Liu Chang Yu Shuai-bei Wang Zhi-qian Li Jian-rong
Copyright Year	2011
Description	Author affiliation: Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, China (Shen Cheng-wu; Liu Chang; Yu Shuai-bei; Wang Zhi-qian; Li Jian-rong)
Abstract	With the aim to fit the sin wave curve of a multi-position strap-down north seeking system and to calculate the real north angle accurately, the principles of the system and the algorithm of singular value decomposition(SVD) are introduced. The factors influencing the measuring precision are also analyzed. Then, the algorithm is adopted to fit curves. Experimental results indicate that the singular value decomposition is very precise, for its error sum is $1.1×10^{−2}μV,$ and the squared error is 2.8mV. Moreover, for phase angle measurement, measured six times in same direction, the squared error is 24″ (1σ). The method based on SVD can satisfy the system precision requirements of curve-fitting north seeking systems.
Starting Page	994
Ending Page	997
File Size	256433
Page Count	4
File Format	PDF
ISBN	9781612847191
e-ISBN	9781612847221
DOI	10.1109/MEC.2011.6025632
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-19
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Curve-fitting Strap-down north seeking Singular value decomposition (SVD) Optics Data processing Electronic mail Matrix decomposition Mathematical model Equations Physics
Content Type	Text
Resource Type	Article

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