Frequency Domain Features (FDF)

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.

Views

This node has no views

Workflows

• 20220125 Pikairos remove zero value for head and tailKNIME Forum
• AI SignalKNIME Forum

Links

• No links available

Developers