Data processing of scintillation index measurement in real atmosphere

li Fei; Wu Yi; Hou Zaihong

doi:10.3788/HPLPB20122406.1349

Volume 24 Issue 06

May 2012

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li Fei, Wu Yi, Hou Zaihong. Data processing of scintillation index measurement in real atmosphere[J]. High Power Laser and Particle Beams, 2012, 24: 1349-1352. doi: 10.3788/HPLPB20122406.1349

Citation:

li Fei, Wu Yi, Hou Zaihong. Data processing of scintillation index measurement in real atmosphere[J]. High Power Laser and Particle Beams, 2012, 24: 1349-1352. doi: 10.3788/HPLPB20122406.1349

li Fei, Wu Yi, Hou Zaihong. Data processing of scintillation index measurement in real atmosphere[J]. High Power Laser and Particle Beams, 2012, 24: 1349-1352. doi: 10.3788/HPLPB20122406.1349

Citation:

li Fei, Wu Yi, Hou Zaihong. Data processing of scintillation index measurement in real atmosphere[J]. High Power Laser and Particle Beams, 2012, 24: 1349-1352. doi: 10.3788/HPLPB20122406.1349

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Data processing of scintillation index measurement in real atmosphere

doi: 10.3788/HPLPB20122406.1349

li Fei^{1,2
,
,},
Wu Yi¹,
Hou Zaihong¹

1.
Key Laboratory of Atmospheric Composition and Optical Radiation,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China;
2.
State Key Laboratory of Pulsed Power Laser Technology,Department of Optronics Electronic Engineering Institute of PLA,Hefei 230037,China

Received Date: 2011-12-15
Rev Recd Date: 2012-01-12
Publish Date: 2012-06-15

Abstract

Abstract

Considering system background noise, detector inherent noise and shot noise, the mathematical model of scintillation index measurement system was amended and the current method for data processing was modified. An experiment of laser propagation was carried out at the range of 1 km, and the experimental data were processed with the original and the modified methods. The results show that the amended model is more consistent with experimental data than the original one; shot noise is one order of magnitude larger than system background noise and it influences the accuracy of measurement seriously; the fluctuation of signal-to-noise ratio(SNR) has less influence on the modified method than on the original method; and the accuracy of the modified method is higher than the original one in low-SNR condition.
- atmospheric optics,
- atmospheric turbulence,
- scintillation index,
- data processing,
- shot noise

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References(1)

References

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