Table Of Contents

MT Format Eye Diagram (MT Format Eye Diagram (WDT)) (G Dataflow)

Version:
    Last Modified: February 7, 2018

    Specifies a real-valued waveform, divides it into segments, and displays those segments as plots on a waveform graph. This node determines the segment length based on the symbol rate and eye length parameters.

    spd-note-tip
    Tip  

    For a "clean" eye diagram with distinct, non-shifting transitions, the input waveform must have an integer-valued symbol-rate-to-sample-rate ratio.

    connector_pane_image
    datatype_icon

    waveform

    Modulated data for plotting as an eye diagram.

    datatype_icon

    symbol rate

    The desired symbol rate, in hertz (Hz).

    Default: 1.0

    datatype_icon

    eye length

    Number of symbol periods on the horizontal scale of the eye diagram.

    Default: 1

    datatype_icon

    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

    datatype_icon

    eye diagram

    An array of waveform segments for eye diagram display. Each segment has a time length of (eye length × symbol period) seconds. Wire this parameter directly to a waveform graph.

    datatype_icon

    t0

    Trigger (start) time of the Y array.

    Default: 0

    datatype_icon

    dt

    Time interval between data values in the Y array.

    Default: 1.0

    datatype_icon

    Y

    The complex-valued signal-only baseband modulated waveform. The real and imaginary parts of this complex data array correspond to the in-phase (I) and quadrature-phase (Q) data, respectively.

    datatype_icon

    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


    Recently Viewed Topics