This section documents the processing steps available in the Spectral Attributes Steps category.
The types of Spectral Attributes Steps currently available are:
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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