Volume 39 Issue 3
May  2019
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QIAN Yedong, ZHANG Hua, YANG Jianwei, WU Yewen. Prediction of High-energy Electron Flux of Geosynchronous Orbit Based on Empirical Mode Decomposition[J]. Chinese Journal of Space Science, 2019, 39(3): 316-325. doi: 10.11728/cjss2019.03.316
Citation: QIAN Yedong, ZHANG Hua, YANG Jianwei, WU Yewen. Prediction of High-energy Electron Flux of Geosynchronous Orbit Based on Empirical Mode Decomposition[J]. Chinese Journal of Space Science, 2019, 39(3): 316-325. doi: 10.11728/cjss2019.03.316

Prediction of High-energy Electron Flux of Geosynchronous Orbit Based on Empirical Mode Decomposition

doi: 10.11728/cjss2019.03.316
  • Received Date: 2018-11-05
  • Rev Recd Date: 2019-02-26
  • Publish Date: 2019-05-15
  • During the recovery of a magnetic storm, the relativistic electrons with MeV energy diffuse from the outer radiation belt to geosynchronous orbit. The electrons which energy are larger than 2MeV could penetrate the surface of satellites and accumulate inside them. Such an electron flux effect could cause satellites to be unable to function properly or to fail completely. Relativistic electrons change very rapidly during the magnetic storm and are very non-stationary. These effects are reduced by empirical mode decomposition method. Data in 2008-2009 are used as the training set, and data in 2010-2013 are used as the testing set. The result shows that the average prediction efficiency of the testing set is 0.81. The solar activity is complex in 2013, and the prediction efficiency is up to 0.81. The prediction efficiency of electron flux has been greatly improved by using empirical decomposition method.


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