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Spiking Deconvolution

Date post: 23-Feb-2016
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Spiking Deconvolution. In order to compress seismic signal in time and whiten the spectrum. Advantages: shows embedded signal in noise Disadvantages: heightens noise. Convolutional model. Steps in Spiking Deconvolution. Calculate autocorrelation function (ACF) - PowerPoint PPT Presentation
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Spiking Deconvolution In order to compress seismic signal in time and whiten the spectrum. Advantages: shows embedded signal in noise Disadvantages: heightens noise
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Page 1: Spiking Deconvolution

Spiking DeconvolutionIn order to compress seismic signal in time

and whiten the spectrum. Advantages: shows embedded signal in noise

Disadvantages: heightens noise

Page 2: Spiking Deconvolution

Convolutional model

( ) ( ) ( )data t earth t wavelet t

( , ) ( , ) ( , )data earth wavelet

Page 3: Spiking Deconvolution

Steps in Spiking Deconvolution

• Calculate autocorrelation function (ACF)

• Estimate second crossing of ACF in s• Conduct inverse filtering using ACF

Page 4: Spiking Deconvolution

Significant arrivals in SP 2Calama, Chile (181207_1)

• Refractions (mainly) and reflections

Page 5: Spiking Deconvolution

W E

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W E

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W E

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W E

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W E

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W E

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Significant arrivals in SP 5 (191207_1)

• Refractions (mainly)

Page 13: Spiking Deconvolution
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Significant arrivals in SP 6 (181207_3)

• Refractions (mainly)

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Page 16: Spiking Deconvolution

Significant arrivals in SP 4A (171207_1)

• Refractions (mainly)

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Significant arrivals in SP 4B (191207_2)

• Refractions (mainly)

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Very sharp break


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