Geomagnetic Reference Map Denoising Based on Singular Entropy

Zhan Long Zhu; Gong Liu Yang; Yan Yong Wang; Yuan Yuan Liu

doi:10.4028/www.scientific.net/AMM.543-547.912

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 543-547Geomagnetic Reference Map Denoising Based on...

Geomagnetic Reference Map Denoising Based on Singular Entropy

Abstract:

To weaken the noise disturbance of GRM and improve the matching precision and matching probability of inertial/geomagnetic system, this paper proposed a method for denoising based on SVD. Firstly, from the perspective of information entropy, the singular entropy is introduced and the inner link between singular entropy and signal-to-noise ratio (SNR) is analyzed. Secondly, the method based on the asymptotic characteristic of the probabilities associated with the different singular values order (SVO) is proposed. Lastly, by utilizing practical GRM, the denoising analysis about the proposed method is demonstrated and later simulation experiments of GMN are accomplished. Simulation results show that the method is feasible and reliable.

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Periodical:

Applied Mechanics and Materials (Volumes 543-547)

Pages:

912-916

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.543-547.912

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Online since:

March 2014

Authors:

Zhan Long Zhu*, Gong Liu Yang, Yan Yong Wang, Yuan Yuan Liu

Keywords:

Data Analysis, De-Noising, Geomagnetic Matching Navigation (GMN), Geomagnetic Reference Map (GRM), Singular Entropy, Singular Value Decomposition (SVD)

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