Cross Power VI

Owning Palette: Spectral Analysis VIs

Requires: Multicore Analysis and Sparse Matrix Toolkit

Computes the double-sided cross power spectrum of two time-domain signals X and Y.

Wire data to the X and Y inputs to determine the polymorphic instance to use or manually select the instance.

Details  

Cross Power (DBL)

	X specifies the input time-domain signal.
	Y specifies the input time-domain signal.
	error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
	Sxy returns the cross power spectrum of signals X and Y.
	error out contains error information. This output provides standard error out functionality.

Cross Power (SGL)

	X specifies the input time-domain signal.
	Y specifies the input time-domain signal.
	error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
	Sxy returns the cross power spectrum of signals X and Y.
	error out contains error information. This output provides standard error out functionality.

Cross Power (CDB)

	X specifies the input time-domain signal.
	Y specifies the input time-domain signal.
	error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
	Sxy returns the cross power spectrum of signals X and Y.
	error out contains error information. This output provides standard error out functionality.

Cross Power (CSG)

	X specifies the input time-domain signal.
	Y specifies the input time-domain signal.
	error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
	Sxy returns the cross power spectrum of signals X and Y.
	error out contains error information. This output provides standard error out functionality.

Cross Power Details

The following table lists the support characteristics of this VI.

Supported on RT targets	Yes
Suitable for bounded execution times on RT	Yes

If the input signals X and Y have different lengths, this VI first pads zeros to the shorter input signal to make the signals the same length. Let n represent the common length of the two signals after this VI pads zeros to the end of the shorter input signal.

This VI computes the double-sided cross power spectrum using the following equation.

where P_double is the double-sided cross power spectrum Sxy.