Portable visibility detector based on backward scattering lidar

ZHUANG Zibo; HUANG Wei; FU Chao; JIANG Lihui

doi:10.7510/jgjs.issn.1001-3806.2015.01.024

LASER TECHNOLOGY > 2015 > 39(1): 119-123. > DOI: 10.7510/jgjs.issn.1001-3806.2015.01.024

ZHUANG Zibo, HUANG Wei, FU Chao, JIANG Lihui. Portable visibility detector based on backward scattering lidar[J]. LASER TECHNOLOGY, 2015, 39(1): 119-123. DOI: 10.7510/jgjs.issn.1001-3806.2015.01.024

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Portable visibility detector based on backward scattering lidar

1.
Institute of Civil Aviation Meteorological, Civil Aviation University of China, Tianjin 300300, China;
2.
College of Flight Technical, Civil Aviation University of China, Tianjin 300300, China;
3.
Key Laboratory for Advanced Signal Processing of Tianjin City, Civil Aviation University of China, Tianjin 300300, China

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Received Date: December 09, 2013
Revised Date: January 19, 2014
Published Date: January 24, 2015

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Abstract

In order to satisfy the safety requirement of aircraft taking off and landing under bad weather conditions, a portable lidar visibility meter was designed based on the principle of atmospheric backscatter. Diode pumped solid-state laser with low pulse energy and high pulse repeat frequency and avalanche photo diode detector with low noise and high quantum efficiency were adopted to ensure the precision of system. Specially, the embedded computer was adopted as the core of system controlling and data processing and the timing control of system was realized. The field test results show that the system has high detection accuracy and the overall error is less than 15%. The results show that the system has high detection precision and can satisfy the safety requirements of International Civil Aviation Organization.
- laser technique,
- embedded computer,
- visibility,
- field test

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