LabVIEW Advanced Signal Processing Toolkit API Reference

TSA Configure Cepstrogram Indicator VI

  • Updated2023-02-21
  • 5 minute(s) read

TSA Configure Cepstrogram Indicator VI

Owning Palette: Utilities VIs

Requires: Advanced Signal Processing Toolkit

Configures the time-cepstrum of a univariate time series and displays the cepstrogram of the univariate time series on an intensity graph. Wire data to the color table input to determine the polymorphic instance to use or manually select the instance.

When you add the TSA Cepstrogram Indicator to the front panel, the TSA Configure Cepstrogram Indicator VI appears on the block diagram with the reference of cepstrogram indicator input and the cepstrogram indicator output already wired.

Example

TSA Configure Cepstrogram Indicator (Predefined Color Table)

reference of cepstrogram indicator specifies the reference of cepstrogram indicator. If you do not wire this input, this VI does not set the scale information and color table for cepstrogram indicator.
dB on? specifies to display the cepstrogram in decibels or in a linear scale. If dB on? is TRUE, this VI returns the cepstrogram in decibels. If dB on? is FALSE, this VI returns the cepstrogram in a linear scale. The default is FALSE.
cepstrogram specifies the time-quefrency representation of the univariate time series. Each row corresponds to the real cepstrum at a certain time.
scale info specifies the time scale and quefrency scale information of the time-quefrency representation, including the time offset, the time interval between every two contiguous rows, the quefrency offset, and the quefrency interval between every two contiguous columns of the cepstrogram.
ignore timestamp? specifies whether this VI forces the timestamp of the input signal to 0 so you can define the limit signals relative to the beginning of the input signal. The default is FALSE, which means this VI uses the timestamp in scale info.
error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
color table specifies the color table of cepstrogram indicator.

0Rainbow (default)—Displays the maximum in red and the minimum in purple.
1Inverse gray—Displays the maximum in black and the minimum in white.
2Gray—Displays the maximum in white and the minimum in black.
cepstrogram indicator displays the cepstrogram on an intensity graph. The x-axis represents time, and the y-axis represents the scale, or the frequency. The color indicates the time-quefrency representation of the univariate time series.
error out contains error information. This output provides standard error out functionality.

TSA Configure Cepstrogram Indicator (Customized Color Table)

reference of cepstrogram indicator specifies the reference of cepstrogram indicator. If you do not wire this input, this VI does not set the scale information and color table for cepstrogram indicator.
dB on? specifies to display the cepstrogram in decibels or in a linear scale. If dB on? is TRUE, this VI returns the cepstrogram in decibels. If dB on? is FALSE, this VI returns the cepstrogram in a linear scale. The default is FALSE.
cepstrogram specifies the time-quefrency representation of the univariate time series. Each row corresponds to the real cepstrum at a certain time.
scale info specifies the time scale and quefrency scale information of the time-quefrency representation, including the time offset, the time interval between every two contiguous rows, the quefrency offset, and the quefrency interval between every two contiguous columns of the cepstrogram.
ignore timestamp? specifies whether this VI forces the timestamp of the input signal to 0 so you can define the limit signals relative to the beginning of the input signal. The default is FALSE, which means this VI uses the timestamp in scale info.
error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
color table specifies a 256-element array of colors that defines the color table of cepstrogram indicator. Refer to the Create IntGraph Color Table VI in the labview\examples\general\graphs\intgraph.llb for an example of how to create a customized color table.
cepstrogram indicator displays the cepstrogram on an intensity graph. The x-axis represents time, and the y-axis represents the scale, or the frequency. The color indicates the time-quefrency representation of the univariate time series.
error out contains error information. This output provides standard error out functionality.

Example

Refer to the Bearing Time-Cepstrum Analysis VI in the labview\examples\Time Series Analysis\TSAApplications directory for an example of using the TSA Configure Cepstrogram Indicator VI.

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