Volume 34 Issue 10
Oct.  2008
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Li Meng, Wang Zhongyu, Gao Xiaoyinget al. Effect of atmospheric scintillation on laser communication system by pseudo-non-diffracting beam[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(10): 1147-1150. (in Chinese)
Citation: Li Meng, Wang Zhongyu, Gao Xiaoyinget al. Effect of atmospheric scintillation on laser communication system by pseudo-non-diffracting beam[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(10): 1147-1150. (in Chinese)

Effect of atmospheric scintillation on laser communication system by pseudo-non-diffracting beam

  • Received Date: 10 Oct 2007
  • Publish Date: 31 Oct 2008
  • In pseudo-non-diffracting beam communication system, the intensity variance on the receiver is brought by atmospheric turbulence, and thus the bit-error rate(BER) of the communication system could be effected. Ignoring other noises in the system, the relationship between BER with the refractive index structure parameter, communication distance and wavelength was deducted based on the distribution of intensity variance. The changing law of BER along with index structure parameter was researched through computer simulation, the impact of communication distance and wavelength on BER was discussed and the allowed range of communication distance was determinated under BER criterion of 10-9. It is indicated that the atmospheric turbulence-s effect to BER can be weaken by choosing appropriate weather and sunlight condition, decreasing communication distance and using laser with longer wavelength.

     

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