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Presentation
[Poster Presentation] Study on Wave Distribution Function Method with Markov Random Field Model for VLF Electromagnetic Waves
Mamoru Ota, Yoshiya Kasahara, Yoshitaka Goto (Kanazawa Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) The wave distribution function (WDF) method was proposed for VLF waves in the earth's plasmasphere/magnetosphere. This method assumes that observed signals are generated by a continuum of superposed plane waves of different frequencies, propagated in different directions with no mutual phase coherence. However, the wave energy density is a so-called ill-posed problem and the solution is not determined uniquely. Therefore, we must assume an adequate model as a solution. In the new model, we introduce the Markov random field (MRF) as prior information of the wave energy density. Using computer-generated spectral matrix, the performance of the new model was evaluated.
Keyword (in Japanese) (See Japanese page) 
(in English) Ill-posed Problem / Wave Distribution Function Method / Markov Random Field Model / Variational Bayes / / / /  
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Conference Information
Committee AP  
Conference Date 2014-05-15 - 2014-05-16 
Place (in Japanese) (See Japanese page) 
Place (in English) The Kanazawa Theatre 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Asian Workshop on Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2014-05-AP 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study on Wave Distribution Function Method with Markov Random Field Model for VLF Electromagnetic Waves 
Sub Title (in English)  
Keyword(1) Ill-posed Problem  
Keyword(2) Wave Distribution Function Method  
Keyword(3) Markov Random Field Model  
Keyword(4) Variational Bayes  
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1st Author's Name Mamoru Ota  
1st Author's Affiliation Kanazawa University (Kanazawa Univ.)
2nd Author's Name Yoshiya Kasahara  
2nd Author's Affiliation Kanazawa University (Kanazawa Univ.)
3rd Author's Name Yoshitaka Goto  
3rd Author's Affiliation Kanazawa University (Kanazawa Univ.)
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