Owning Palette: Signal Processing VIs
Requires: Full Development System. This topic might not match its corresponding palette in LabVIEW depending on your operating system, licensed product(s), and target.
Use the Spectral Analysis VIs to perform arraybased analysis on a spectrum.
The VIs on this palette can return signal processing error codes.
Palette Object  Description 

Amplitude and Phase Spectrum  Computes the singlesided, scaled amplitude spectrum of a realvalued timedomain signal and returns the amplitude spectrum as magnitude and phase. 
Auto Power Spectrum  Computes the singlesided, scaled, auto power spectrum of a timedomain signal. 
Buneman Frequency Estimator  Estimates the frequency of a given sine wave of unknown frequency using the Buneman formula. 
Cross Power  Computes the cross power spectrum, Sxy, of the input signals X and Y. Wire data to the X input to determine the polymorphic instance to use or manually select the instance. 
Cross Power Spectrum  Computes the singlesided, scaled, cross power spectrum of two realtime signals. 
Power & Frequency Estimate  Computes the estimated power and frequency around the peak frequency in the power spectrum of a timedomain signal. 
Power Spectrum  Computes the Power Spectrum, Sxx, of the input sequence X. Wire data to the X input to determine the polymorphic instance to use or manually select the instance.

Spectrum Unit Conversion  Converts either the power, amplitude, or gain (amplitude ratio) spectrum to alternate formats including Log (decibel and dbm) and spectral density. 
STFT Spectrograms  Computes the signal energy distribution in the joint timefrequency domain, using the shorttime Fourier transform (STFT) algorithm. 
Unevenly Sampled Signal Spectrum  Calculates the power spectrum of a signal that is unevenly spaced in time. 
WVD Spectrogram  Computes the energy distribution of the input signal in the joint timefrequency domain using the WignerVille distribution (WVD) algorithm. 