Denoising methods of lightning transient electrical signals

li peng; zheng yi; zhang yi-jun

Volume 19 Issue 12

Dec. 2007

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Article Navigation > High Power Laser and Particle Beams > 2007 > 19(12): 0-

du wenbo, xiao hu, wang xiaolin, et al. Narrow-linewidth high power fiber laser with output power of 334 W in all-fiber MOPA format[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

li peng, zheng yi, zhang yi-jun. Denoising methods of lightning transient electrical signals[J]. High Power Laser and Particle Beams, 2007, 19.

du wenbo, xiao hu, wang xiaolin, et al. Narrow-linewidth high power fiber laser with output power of 334 W in all-fiber MOPA format[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

li peng, zheng yi, zhang yi-jun. Denoising methods of lightning transient electrical signals[J]. High Power Laser and Particle Beams, 2007, 19.

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Denoising methods of lightning transient electrical signals

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

Publish Date: 2007-12-15

Abstract

Abstract

Traditional digital filter method and Birge-Massart threshold wavelet method were used to study the denoisng of lightning transient electrical signals. The mean square error and magnitude error of simulation signals were calculated to compare the denoising effects, and double exponential-decay pulse signals and Gaussian white-noise were composed as the simulating signals. Denoising simulation and measured signals proved that the Birge-Massart threshold wavelet ways were better than the traditionally used smoothing filter and FIR digital low-pass filter ones. Comparing mean square error and magnitude error with different decomposition orders after simulating signals denoising, it is concluded that wavelet decomposition order in measuring lightning transient electrical signals should be 5 to
- lightning transient electrical signals,
- signal denoising,
- wavelet transform,
- birge-massart threshold,
- decomposition order

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