Computes the single-sided, scaled auto power spectrum of a time-domain signal.
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initialize, when TRUE, initializes the internal state of the VI. |
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signal is the input time-domain signal usually in volts. |
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sample length is the length of each set of incoming data. The VI performs computation on each set of data. The default is 100. sample length must be greater than zero. |
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dt is the sample period of the time-domain signal, usually in seconds.
dt is also
where |
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Power Spectrum is the single-sided power spectrum in volts rms squared if the input signal is in volts. If the input signal is not in volts, the results are in input signal units rms squared. |
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df is the line frequency interval of the power spectrum, in hertz, when dt is in seconds. |
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error returns any error or warning condition from the VI. Refer to Point By Point Error Codes for more information about these conditions. |