Simultaneous observations of optical and electrical signals and pattern recognition in lightning flashes classification

li peng; zheng yi; zhang yi-jun

Volume 19 Issue 09

Sep. 2007

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Article Navigation > High Power Laser and Particle Beams > 2007 > 19(09): 0-

wu jin-quan, lin zhao-xiang, song shu-yan, et al. Spatial distributions of laser-induced air plasmas[J]. High Power Laser and Particle Beams, 2007, 19.

Citation:

li peng, zheng yi, zhang yi-jun. Simultaneous observations of optical and electrical signals and pattern recognition in lightning flashes classification[J]. High Power Laser and Particle Beams, 2007, 19.

wu jin-quan, lin zhao-xiang, song shu-yan, et al. Spatial distributions of laser-induced air plasmas[J]. High Power Laser and Particle Beams, 2007, 19.

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Simultaneous observations of optical and electrical signals and pattern recognition in lightning flashes classification

1.
Research Institute of Chemical Defense,Beijing 102205,China;
2.
Chinese Academy of Meteorological Science,Beijing 100081,China

Publish Date: 2007-09-15

Abstract

Abstract

The optical and electrical signals of lightning discharges were measured simultaneously by using the wide-band electric field instrument and the optical ripple detector at Conghua city Guangdong province in summer, 2006. The observation data were analyzed statistically in this paper. The results show that the lightning optical signal is always delayed from the electric signal on onset and peak time, and the optical pulse rises more slowly to the peak and its pulse-width is broader. Using the back propagation artificial neural networks methods, the pattern recognition in lighting flashes chassification was further investigated by optical and electric time series. The results are up to the standard except in-cloud flash ones.
- lightning,
- optical and electrical signals,
- simultaneous observation,
- statistic analysis,
- back propagation artificial neural networks,
- pattern recognition

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