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Sub-THz signals’ propagation model in hypersonic plasma sheath under different atmospheric conditions

  • Kai Yuan
  • Yuhao Wang
  • Linfang Shen
  • Ming Yao
  • Xiaohua Deng
  • Fuhui Zhou
  • Zhou Chen
Moop

Abstract

One of the aims for modern hypersonic cruise flight is hypersonic global reach. The length of route for such flights could be up to thousands of kilometers. The atmospheric conditions on the route are complicated. On the other hand, hypersonic flights used to suffer from communication blackout. The sub-THz communication is considered as a potential solution to the ‘blackout’. In the present study the propagation for sub-THz signals in hypersonic plasma sheaths was modeled under different atmospheric conditions. According to the study, the electron density and the electron collision frequency near the onboard antenna linearly increase with the atmospheric mass density around the vehicle, hence the attenuation of sub-THz signals in hypersonic plasma sheaths increases with the atmospheric mass density. The impact led by the atmospheric temperature is ignorable. Based on the study a new sub-THz signals’ propagation model was developed, which could be utilized for quick estimation for signal propagation under different atmospheric conditions. The geographical difference of signal propagation over the whole globe was obtained with the new model. The results showed that the signal attenuation in plasma sheaths varies with latitude and longitude. The maximum signal attenuation occurs in Alaska, Canada and Russia.

Keywords

sub-THz communication hypersonic cruise flight communication blackout plasma sheath signal propagation model signal attenuation 

Notes

Acknowledgements

This work was supported by Jiangxi Postdoctoral (Grant No. 2013KY43) and Natural Science Foundation of Jiangxi Province (Grant No. 20151BAB207004).

Supplementary material

Generation and evolution of hypersonic plasma sheath

Sub-THz signals’ propagation model in hypersonic plasma sheath under different atmospheric conditions

11432_2017_9232_MOESM3_ESM.pdf (2 mb)
Sub-THz signals’ propagation model in hypersonic plasma sheath under different atmospheric conditions

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Copyright information

© Science China Press and Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  • Kai Yuan
    • 1
  • Yuhao Wang
    • 2
  • Linfang Shen
    • 1
  • Ming Yao
    • 1
  • Xiaohua Deng
    • 1
  • Fuhui Zhou
    • 2
  • Zhou Chen
    • 1
  1. 1.Institute of Space Science and TechnologyNanchang UniversityNanchangChina
  2. 2.Information Engineering SchoolNanchang UniversityNanchangChina

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