Spectral Attributes Steps

 

This section documents the processing steps available in the Spectral Attributes Steps category.

 

The types of Spectral Attributes Steps currently available are:

 

 

Bandwidth

Usage:

The Bandwidth step estimates the bandwith of spectrally decomposed seismic data computed for example with Wigner-Ville Decomposition step using a user-defined time and frequency window.

 

Input Links:

1)      Spectrally decomposed seismic data (mandatory).

 

Output Links:

2)      Spectrally decomposed seismic data (mandatory).

 

Example Flowchart:

 

 

Step Parameter Dialog:

 

 

Parameter Description:

 

Processing start time (ms) — Enter the start time (upper boundary) of the analysis in milliseconds.

 

Processing end time (ms) — Enter the end time (lower boundary) of the analysis in milliseconds.

 

Analysis start frequency (Hz) — Enter the minimum frequency used in the bandwith analysis.

 

Analysis end frequency (Hz) — Enter the maximum frequency used in the bandwidth analysis.

 

Center Frequency

Usage:

The Center Frequency step estimates the center frequency of spectrally decomposed seismic data computed for example with Wigner-Ville Decomposition step using a user-defined time and frequency window.

 

Input Links:

1)      Spectrally decomposed seismic data (mandatory).

 

Output Links:

1)      Spectrally decomposed seismic data (mandatory).

 

Example Flowchart:

 

 

Step Parameter Dialog:

 

 

Parameter Description:

 

Processing start time (ms) — Enter the start time (upper boundary) of the analysis in milliseconds.

 

Processing end time (ms) — Enter the end time (lower boundary) of the analysis in milliseconds.

 

Analysis start frequency (Hz) — Enter the minimum frequency used in the center frequency analysis.

 

Analysis end frequency (Hz) — Enter the maximum frequency used in the center frequency analysis.

 

Kurtosis

Usage:

The Kurtosis step estimates the kurtosis (measure of the "tailedness" of the spectra) of spectrally decomposed seismic data computed for example with Wigner-Ville Decomposition step using a user-defined time and frequency window.

 

Input Links:

1)      Spectrally decomposed seismic data (mandatory).

 

Output Links:

1)      Spectrally decomposed seismic data (mandatory).

 

Example Flowchart:

 

 

Step Parameter Dialog:

 

 

Parameter Description:

 

Processing start time (ms) — Enter the start time (upper boundary) of the analysis in milliseconds.

 

Processing end time (ms) — Enter the end time (lower boundary) of the analysis in milliseconds.

 

Analysis start frequency (Hz) — Enter the minimum frequency used in the kurtosis analysis.

 

Analysis end frequency (Hz) — Enter the maximum frequency used in the kurtosis analysis.

 

Mean Amplitude

Usage:

The Mean amplitude step estimates the mean amplitude value of spectrally decomposed seismic data computed for example with Wigner-Ville Decomposition step using a user-defined time and frequency window.

 

Input Links:

2)      Spectrally decomposed seismic data (mandatory).

 

Output Links:

2)      Spectrally decomposed seismic data (mandatory).

 

 

Step Parameter Dialog:

 

 

Parameter Description:

 

Processing start time (ms) — Enter the start time (upper boundary) of the analysis in milliseconds.

 

Processing end time (ms) — Enter the end time (lower boundary) of the analysis in milliseconds.

 

Analysis start frequency (Hz) — Enter the minimum frequency used in the mean amplitude analysis.

 

Analysis end frequency (Hz) — Enter the maximum frequency used in the mean amplitude analysis.

 

Minimum Amplitude

Usage:

The Minimum amplitude step estimates the minimum amplitude value of spectrally decomposed seismic data computed for example with Wigner-Ville Decomposition step using a user-defined time and frequency window.

 

Input Links:

1)      Spectrally decomposed seismic data (mandatory).

 

Output Links:

1)      Spectrally decomposed seismic data (mandatory).

 

 

Step Parameter Dialog:

 

 

Parameter Description:

 

Processing start time (ms) — Enter the start time (upper boundary) of the analysis in milliseconds.

 

Processing end time (ms) — Enter the end time (lower boundary) of the analysis in milliseconds.

 

Analysis start frequency (Hz) — Enter the minimum frequency used in the minimum amplitude analysis.

 

Analysis end frequency (Hz) — Enter the maximum frequency used in the minimum amplitude analysis.

 

Peak Amplitude

Usage:

The Peak amplitude step estimates the peak (maximum) amplitude value of spectrally decomposed seismic data computed for example with Wigner-Ville Decomposition step using a user-defined time and frequency window.

 

Input Links:

1)      Spectrally decomposed seismic data (mandatory).

 

Output Links:

1)      Spectrally decomposed seismic data (mandatory).

 

 

Step Parameter Dialog:

 

 

Parameter Description:

 

Processing start time (ms) — Enter the start time (upper boundary) of the analysis in milliseconds.

 

Processing end time (ms) — Enter the end time (lower boundary) of the analysis in milliseconds.

 

Analysis start frequency (Hz) — Enter the minimum frequency used in the maximum amplitude analysis.

 

Analysis end frequency (Hz) — Enter the maximum frequency used in the maximum amplitude analysis.

 

Peak Amplitude Above Mean

Usage:

The Peak Amplitude amplitude step estimates the maximum amplitude above the mean of spectrally decomposed seismic data computed for example with Wigner-Ville Decomposition step using a user-defined time and frequency window.

 

Input Links:

1)      Spectrally decomposed seismic data (mandatory).

 

Output Links:

1)      Spectrally decomposed seismic data (mandatory).

 

Example Flowchart:

 

 

Step Parameter Dialog:

 

 

Parameter Description:

 

Processing start time (ms) — Enter the start time (upper boundary) of the analysis in milliseconds.

 

Processing end time (ms) — Enter the end time (lower boundary) of the analysis in milliseconds.

 

Analysis start frequency (Hz) — Enter the minimum frequency used in the peak amplitude above mean analysis.

 

Analysis end frequency (Hz) — Enter the maximum frequency used in the peak amplitude above mean analysis.

 

Peak Frequency

Usage:

The Peak Frequency step estimates the dominant frequency value of spectrally decomposed seismic data computed for example with Wigner-Ville Decomposition step using a user-defined time and frequency window.

 

Input Links:

1)      Spectrally decomposed seismic data (mandatory).

 

Output Links:

1)      Spectrally decomposed seismic data (mandatory).

 

Example Flowchart:

 

 

Step Parameter Dialog:

 

 

Parameter Description:

 

Processing start time (ms) — Enter the start time (upper boundary) of the analysis in milliseconds.

 

Processing end time (ms) — Enter the end time (lower boundary) of the analysis in milliseconds.

 

Analysis start frequency (Hz) — Enter the minimum frequency used in the peak frequency amplitude analysis.

 

Analysis end frequency (Hz) — Enter the maximum frequency used in the peak frequency analysis.

 

Phase at Peak Frequency

Usage:

The Phase at Peak Frequency step estimates the phase of the dominant frequency of spectrally decomposed seismic data computed for example with Wigner-Ville Decomposition step using a user-defined time and frequency window.

 

Input Links:

1)      Spectrally decomposed seismic data (mandatory).

 

Output Links:

1)      Spectrally decomposed seismic data (mandatory).

 

Example Flowchart:

 

 

Step Parameter Dialog:

 

 

Parameter Description:

 

Processing start time (ms) — Enter the start time (upper boundary) of the analysis in milliseconds.

 

Processing end time (ms) — Enter the end time (lower boundary) of the analysis in milliseconds.

 

Analysis start frequency (Hz) — Enter the minimum frequency used in the phase at peak frequency analysis.

 

Analysis end frequency (Hz) — Enter the maximum frequency used in the phase at peak frequency analysis.

 

RMS Frequency

Usage:

The RMS Frequency step estimates the root mean square of spectrally decomposed seismic data computed for example with Wigner-Ville Decomposition step using a user-defined time and frequency window.

 

Input Links:

1)      Spectrally decomposed seismic data (mandatory).

 

Output Links:

1)      Spectrally decomposed seismic data (mandatory).

 

Example Flowchart:

 

 

Step Parameter Dialog:

 

 

Parameter Description:

 

Processing start time (ms) — Enter the start time (upper boundary) of the analysis in milliseconds.

 

Processing end time (ms) — Enter the end time (lower boundary) of the analysis in milliseconds.

 

Analysis start frequency (Hz) — Enter the minimum frequency used in the RMS frequency analysis.

 

Analysis end frequency (Hz) — Enter the maximum frequency used in the RMS frequency  analysis.

 

Skewness

Usage:

The Skweness tep estimates the skewness of spectrally decomposed seismic data computed for example with Wigner-Ville Decomposition step using a user-defined time and frequency window.

 

Input Links:

1)      Spectrally decomposed seismic data (mandatory).

 

Output Links:

1)      Spectrally decomposed seismic data (mandatory).

 

Example Flowchart:

 

 

Step Parameter Dialog:

 

 

Parameter Description:

 

Processing start time (ms) — Enter the start time (upper boundary) of the analysis in milliseconds.

 

Processing end time (ms) — Enter the end time (lower boundary) of the analysis in milliseconds.

 

Analysis start frequency (Hz) — Enter the minimum frequency used in the skewness amplitude analysis.

 

Analysis end frequency (Hz) — Enter the maximum frequency used in the skewness amplitude analysis.

 

Spectral Variance

Usage:

The Spectral Variance step estimates the variance of spectrally decomposed seismic data computed for example with Wigner-Ville Decomposition step using a user-defined time and frequency window.

 

Input Links:

1)      Spectrally decomposed seismic data (mandatory).

 

Output Links:

1)      Spectrally decomposed seismic data (mandatory).

 

Example Flowchart:

 

 

Step Parameter Dialog:

 

 

Parameter Description:

 

Processing start time (ms) — Enter the start time (upper boundary) of