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Filter (Lowpass » Elliptic) (G Dataflow)

Version:
    Last Modified: January 9, 2017

    Filters a signal using an elliptic lowpass filter. Lowpass filters pass low frequencies and attenuate high frequencies.

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    reset

    A Boolean that specifies the initialization of the internal state of the node.

    True Initializes the internal state to zero.
    False Initializes the internal state to the final state from the previous call of this node.

    This node automatically initializes the internal state to zero on the first call and runs continuously until this input is True.

    Default: False

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    signal

    The input signal.

    This input supports the following data types:

    • Waveform
    • 1D array of waveforms
    • 1D array of double-precision, floating-point numbers
    • 1D array of complex double-precision, floating-point numbers
    • 2D array of double-precision, floating-point numbers
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    cutoff frequency

    Cutoff frequency of the filter.

    Default: 0.125

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    order

    Order of the IIR filter

    order must be greater than 0. If order is less than or equal to 0, this node sets the filtered signal to an empty array and returns an error.

    Default: 2

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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.

    Default: No error

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    passband ripple

    Ripple in the passband, in decibels.

    passband ripple must be greater than 0. If passband ripple is less than or equal to 0, this node sets the output filter data to an empty array and returns an error.

    Default: 1

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    stopband attenuation

    The attenuation in the stopband, in decibels.

    stopband attenuation must be greater than 0.

    Default: 60.0

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    filtered signal

    Result of filtering the input signal.

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    error out

    Error information. The node produces this output according to standard error behavior.

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: Not supported


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