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Converts spectra from polar components to rectangular components. This conversion can reduce the computational power necessary to view and process spectra.

This VI also returns the Nyquist plot of the rectangular components. You can use this plot to display these components on an XY graph.

You can use this VI to convert one spectrum or N spectra. The data types you wire to the magnitude spectrum and phase spectrum inputs determine the polymorphic instance to use.

Use the SVFA Real and Imaginary to Magnitude and Phase VI to convert rectangular components to polar components.

Use the pull-down menu to select an instance of this VI.

Select an instance SVFA Magnitude and Phase to Real and Imaginary (1 Channel)SVFA Magnitude and Phase to Real and Imaginary (N Channels)

SVFA Magnitude and Phase to Real and Imaginary (1 Channel)

	magnitude spectrum specifies the frequency spacing and the magnitude of the spectrum in units of either amplitude or power. The spectrum info in parameter specifies the type of units. You can use the SVFA Unit Conversion VI to change the type of units. x0 specifies the start frequency or order of the spectrum. dx specifies the frequency or order resolution of the spectrum. magnitude specifies the magnitude of the spectrum.
	phase spectrum specifies the frequency spacing and the phase of the spectrum in units of degree or radian. The spectrum info in parameter specifies the type of units. You can use the SVFA Phase Unit Conversion VI to change the type of units. x0 specifies the start frequency or order of the spectrum. dx specifies the frequency or order resolution of the spectrum. phase specifies the phase of the spectrum.
	spectrum info in specifies the properties of the previously computed spectrum. spectrum info in includes the channel name, spectrum type, spectrum scale as linear or dB, applied window, window size, FFT size, units, x-axis units, dB reference, applied weighting, peak units, and spectral density. Note  You must connect spectrum info in when performing extended measurements. Do not modify the spectrum info in values.
	error in describes error conditions that occur before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Refer to Controlling Error Notification to treat what is normally an error as no error or to treat a warning as an error. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node. status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE. code is the error or warning code. The default is 0. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source specifies the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
	Nyquist plot returns the Nyquist plot of the real and imaginary spectrum components. You can display this plot on an XY graph. real part returns the real part of the spectrum. imaginary part returns the imaginary part of the spectrum.
	real spectrum returns the real part of the rectangular components. x0 returns the start frequency or order of the spectrum. dx returns the frequency or order resolution of the spectrum. real part returns the real part of the spectrum.
	imaginary spectrum returns the imaginary part of the rectangular components. x0 returns the start frequency or order of the spectrum. dx returns the frequency or order resolution of the spectrum. imaginary part returns the imaginary part of the spectrum.
	unit label returns the selected engineering units.
	spectrum info out returns the properties of the computed spectrum. spectrum info out includes the channel name, spectrum type, spectrum scale as linear or dB, applied window, window size, FFT size, units, x-axis units, dB reference, applied weighting, peak units, and spectral density. Do not modify the spectrum info out values.
	error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error. status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred. code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.

SVFA Magnitude and Phase to Real and Imaginary (N Channels)

	magnitude spectra specifies the frequency spacings and the magnitudes of the spectra in units of either amplitude or power. The spectrum info in parameter specifies the type of units. You can use the SVFA Unit Conversion VI to change the type of units. x0 specifies the start frequencies or orders of the spectra. dx specifies the frequencies or order resolutions of the spectra. magnitude specifies the magnitudes of the spectra.
	phase spectra specifies the frequency spacings and the phases of the spectra in units of degree or radian. The spectrum info in parameter specifies the type of units. You can use the SVFA Phase Unit Conversion VI to change the type of units. x0 specifies the start frequencies or orders of the spectra. dx specifies the frequencies or order resolutions of the spectra. phase specifies the phases of the spectra.
	spectrum info in specifies the properties of the previously computed spectrum. spectrum info in includes the channel name, spectrum type, spectrum scale as linear or dB, applied window, window size, FFT size, units, x-axis units, dB reference, applied weighting, peak units, and spectral density. Note  You must connect spectrum info in when performing extended measurements. Do not modify the spectrum info in values.
	error in describes error conditions that occur before this VI or function runs. The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Refer to Controlling Error Notification to treat what is normally an error as no error or to treat a warning as an error. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node. status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE. code is the error or warning code. The default is 0. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source specifies the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
	Nyquist plots returns the Nyquist plots of the real and imaginary spectra components. You can display these plots on one or more XY graphs. real part returns the real parts of the spectra. imaginary part returns the imaginary parts of the spectra.
	real spectra returns the real parts of the rectangular components. x0 returns the start frequencies or orders of the spectra. dx returns the frequencies or order resolutions of the spectra. real part returns the real parts of the spectra.
	imaginary spectra returns the imaginary parts of the rectangular components. x0 returns the start frequencies or orders of the spectra. dx returns the frequencies or order resolutions of the spectra. imaginary part returns the imaginary parts of the spectra.
	unit labels returns the selected engineering units.
	spectrum info out returns the properties of the computed spectrum. spectrum info out includes the channel name, spectrum type, spectrum scale as linear or dB, applied window, window size, FFT size, units, x-axis units, dB reference, applied weighting, peak units, and spectral density. Do not modify the spectrum info out values.
	error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces. Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error. status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred. code is the error or warning code. If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code. source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.