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Signal Analysis Express VIs

LabVIEW 2013 Help

Edition Date: June 2013

Part Number: 371361K-01

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Owning Palette: Express VIs and Functions

Requires: Base Development System. This topic might not match its corresponding palette in LabVIEW depending on your operating system, licensed product(s), and target.

Use the Signal Analysis Express VIs to perform waveform measurements, waveform generation, and signal processing.

Note  The VIs on this palette return an error if an input signal is a waveform with a dt less than or equal to zero.
Palette ObjectDescription
Amplitude and Level MeasurementsPerforms voltage measurements on a signal.
Convolution and CorrelationPerforms convolution, deconvolution, or correlation on the input signals.
Create HistogramComputes a histogram for Signal.
Curve FittingComputes the coefficients that best represent the input data based on the chosen model type.
Distortion MeasurementsPerforms distortion measurements on a signal, such as tone analysis, total harmonic distortion (THD), and signal in noise and distortion (SINAD).
Dual Channel Spectral MeasurementMeasures the frequency response of the input signals and the coherence based on the current and previous input signals. This Express VI returns results such as Magnitude, Phase, Coherence, Real, and Imaginary.
FilterProcesses signals through filters and windows.
Mask and Limit TestingPerforms limit testing on Signals.
Simulate SignalSimulates a sine wave, square wave, triangle wave, sawtooth wave, or noise signal.
Spectral MeasurementsPerforms FFT-based spectral measurements, such as the averaged magnitude spectrum, power spectrum, and phase spectrum on a signal.
StatisticsReturns the selected parameter of the first signal in a waveform.
Timing and Transition MeasurementsPerforms timing and transition measurements, such as frequency, period, or duty cycle, on a signal, usually a pulse.
Tone MeasurementsFinds the single tone with the highest amplitude or searches a specified frequency range to find the single tone with the highest amplitude. You also can find the frequency and phase for a single tone.


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