• Title/Summary/Keyword: loca/remote reference

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Minimisation Technique for Seismic Noise Using a Neural Network (인공신경망을 이용한 탄성파 잡음제거)

  • Hwang Hak Soo;Lee Sang Kyu;Lee Tai Sup;Sung Nak Hoon
    • Geophysics and Geophysical Exploration
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    • v.3 no.3
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    • pp.83-87
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    • 2000
  • The noise prediction filter using a local/remote reference was developed to obtain a high quality data from seismic surveys over the area where seismic transmission power is limited. The method used in the noise prediction filter is a 3-layer neural network whose algorithm is backpropagation. A NRF (Noise Reduction Factor) value of about 3.0 was obtained with appling training and test data to the trained noise prediction filter. However, the scaling technique generally used for minimizing EM noise from electric and electromagnetic data cannot reduce seismic noise, since the technique can allow only amplitude difference between two time series measured at the primary and reference sites.

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