Table Of Contents

MT Get Complex IQ Component (G Dataflow)

Version:
    Last Modified: February 7, 2018

    Extracts the desired component from the IQ (complex) in parameter.

    I, Q, magnitude, and phase data are available for extraction from the IQ (complex) in parameter. This node returns a complex envelope in the CE component parameter that contains the t0, dt, and Y values for the chosen component.

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    IQ data in

    The baseband (downconverted) time-domain data.

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    t0

    The trigger (start) time of the acquired signal.

    Default: 0.0

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    dt

    Time interval between data points in the acquired signal.

    Default: 1.0

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    Y

    The complex-valued time-domain data array. The real and imaginary parts of this complex data array correspond to the in-phase (I) and quadrature-phase (Q) data, respectively.

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    component choice

    The complex envelope data component to extract from the complex envelope contained in the IQ Data (complex) in parameter.

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    Note  

    If you do not request phase data, phase continuity is not preserved.

    Name Description
    I

    Extracts the in-phase component.

    Q

    Extracts the quadrature component.

    Magnitude

    Extracts the magnitude of signal.

    Phase

    Extracts the phase of the signal.

    Default: I

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    error in

    Error conditions that occur before this node runs.

    The node responds to this input according to standard error behavior.

    Standard Error Behavior

    Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

    error in does not contain an error error in contains an error
    If no error occurred before the node runs, the node begins execution normally.

    If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

    If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

    Default: No error

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    reset?

    A Boolean that determines whether initialization of an internal node state tracks the ending phase.

    TRUE The node clears the state information about each call.
    FALSE The node uses the final phase from the previous call as the starting phase for the next call, ensuring phase continuity between calls.

    Default: FALSE

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    IQ data out

    The baseband (downconverted) time-domain data. This node does not modify this data, so this parameter is identical to the IQ data in parameter.

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    t0

    The trigger (start) time of the acquired signal.

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    dt

    Time interval between data points in the acquired signal. The I/Q sampling rate is the reciprocal of this value.

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    Y

    The complex-valued time-domain data array. The real and imaginary parts of this complex data array correspond to the in-phase (I) and quadrature-phase (Q) data, respectively.

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    CE component

    The complex envelope data component selected in the component choice parameter. Wire this parameter to a LabVIEW waveform graph to display the selected component as a function of time.

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    error out

    Error information.

    The node produces this output according to standard error behavior.

    Standard Error Behavior

    Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

    error in does not contain an error error in contains an error
    If no error occurred before the node runs, the node begins execution normally.

    If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

    If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: Not supported

    Web Server: Not supported in VIs that run in a web application


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