IconFrequency Domain Features (FDF)0 ×

AI.Associates Signal Processing version 1.2.0.v201708181012 by KNIME GmbH, Konstanz, Germany

This node computes statistics in the frequency domain.
The chosen statistics will be computed for each row. All frequencies are in Hz.

This node is part of the DSP Extensions provided by AI.Associates GmbH, Germany. For more information please refer to https://ai.associates/knime or write an email to knime@ai.associates.

Options

Mean
Check if you want to compute mean.
Median
Check if you want to compute median.
Standard Deviation
Check if you want to compute standard deviation.
25th Percentile
Check if you want to compute 25th percentile.
75th Percentile
Check if you want to compute 75th percentile.
RMS
Check if you want to compute root mean squared (RMS).
Spectral Energy
Check if you want to compute spectral energy.
Skewness
Check if you want to compute skewness.
Kurtosis
Check if you want to compute kurtosis.
Number of Principal Magnitudes
Select how many of the highest peaks of the spectrum you want to include in your statistics.
Number of Principal Frequencies
Select how many of the frequencies of the highest peaks of the spectrum you want to include in your statistics.
Sample Rate
Enter the sample rate of the original signal (in Hz) -- important for the right scaling of frequencies.
Column Prefix
Check if you want to add a prefix to your frequency domain features.
Padding value for principal frequencies and magnitudes
Select a padding value for principal frequencies and magnitudes.

Input Ports

A table of Fourier transformed signals in each row.

Output Ports

A table with frequency domain features.

Update Site

To use this node in KNIME, install AI.Associates Signal Processing from the following update site:

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