Computes the signal energy distribution in the joint time-frequency domain using the Wigner-Ville distribution algorithm.
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X is the time waveform. |
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time increment controls the time intervals of the Wigner-Ville Distribution. The default is 1.
For example, if you sample the time waveform at fs Hz, the spacing between the rows of WVD Spectrogram {X} is time increment /fs seconds.
Increasing time increment decreases the computation time and reduces memory requirements but also reduces time-domain resolution. Decreasing time increment improves time-domain resolution but increases the computation time and memory requirements. |
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WVD Spectrogram {X} is a 2D array that describes the time waveform energy distribution in the joint time-frequency domain. |
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error returns any error or warning from the VI. Refer to Signal Processing Error Codes for more information about these conditions. |