Volume 33 Issue 3
May  2013
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Article Navigation >  Chinese Journal of Space Science  > 2013  >  33(3): 286-292
Liu Yanan, Liu Xuecai, Wang Jian, Lin Fajun. Adaptive prediction of maximum usable frequency in high-frequency communication[J]. Chinese Journal of Space Science, 2013, 33(3): 286-292. doi: 10.11728/cjss2013.03.286
Citation: Liu Yanan, Liu Xuecai, Wang Jian, Lin Fajun. Adaptive prediction of maximum usable frequency in high-frequency communication[J]. Chinese Journal of Space Science, 2013, 33(3): 286-292. doi: 10.11728/cjss2013.03.286
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Adaptive prediction of maximum usable frequency in high-frequency communication

doi: 10.11728/cjss2013.03.286 cstr: 32142.14.cjss2013.03.286
  • 1.

    China Research Institute of Radiowave Propagation, Qingdao 266107

  • 2.

    Unit 61846 of PLA, Zhuozhou 250013

  • Received Date: 2012-12-17
  • Rev Recd Date: 2013-03-21
  • Publish Date: 2013-05-15
    Abstract
  • In order to realize the adaptive prediction of maximum usable frequency in high-frequency communication, Volterra adaptive method is introduced. Based on the oblique sounding data of chain from Qingdao to Xinxiang in March 2007 and 2012, single-step prediction in different solar activity years and short-term prediction of different steps and training samples length are conducted to validate accurateness, adaptability and validity of this method. Results indicate that the super short-term prediction adopting Volterra adaptive method has good agreement with oblique sounding data and this method is suitable for different solar activity periods. When the prediction step is not more than 1/12 period, RMSE is less than 0.79MHz. Comparison with prediction results of Lyapunov exponent method shows that Volterra adaptive method can gain upper precision in the situation of less data, time-varying channel etc., and the practical application is more convenient. The method provides a basis for in-depth study of high frequency prediction technology.

     

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