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filteric

Version:
    Last Modified: March 15, 2017

    Returns the initial conditions for a transposed direct-form II filter.

    Syntax

    z = filteric(b, a, y)
    z = filteric(b, a, y, x)
    Legacy name: filtic

    Inputs

    b

    Forward filter coefficients. b is a vector.

    a

    Backward filter coefficients. a is a vector.

    y

    Output signal to filter. y is a real or complex vector. y starts from the most recent output. If y is shorter than length(a) - 1, MathScript pads the end of y with zeros. Otherwise, MathScript ignores the elements of y beyond y(length(a) - 1).

    x

    Input signal to filter. x is a real or complex vector. x starts from the most recent input. If x is shorter than length(b) - 1, MathScript pads the end of x with zeros. Otherwise, MathScript ignores the elements of x beyond x(length(b) - 1).

    Outputs

    z

    State of the delays given the previous inputs in x and the previous outputs in y.

    b = [1, 2, 3, 4, 5];
    a = [6, 7, 8];
    y = [1, 2];
    x = [3, 4, 5, 6];
    z = filteric(b, a, y, x)

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: This product does not support FPGA devices


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