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ZHANG Qing-guo, HE Jian. Numerical simulation for the detection of He density in thermosphere by resonant lidar[J]. LASER TECHNOLOGY, 2008, 32(2): 171-173.
Citation: ZHANG Qing-guo, HE Jian. Numerical simulation for the detection of He density in thermosphere by resonant lidar[J]. LASER TECHNOLOGY, 2008, 32(2): 171-173.
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Numerical simulation for the detection of He density in thermosphere by resonant lidar

  • School of Science, Henan University of Science and Technology, Luoyang 471003, China

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  • Received Date: January 21, 2007
  • Revised Date: February 11, 2007
  • Published Date: April 24, 2008
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    • Abstract
  • In order to analyze the back signals and the signal-noise-ratio for the detection of He density in thermosphere by means of resonant lidar,the effective backscattering cross-section of about 10-17m2 was obtained after computer simulation.The size of the back signal was analyzed through numerical simulation with neglecting and considering the background signal respectively.Results showed that the signal-noise-ratio for current system was low,and that the range of the resolving power Δz should be decreased and the integral time τ should be extended in order to improve the signal-noise-ratio.There results are helpful for the detection of He density in thermosphere by means of resonant lidar.
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    • References (10)
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