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freqsd

Version:
    Last Modified: March 15, 2017

    Computes the s-domain Laplace transform frequency response.

    Syntax

    freqsd(b, a)
    freqsd(b, a, n)
    freqsd(b, a, w1)
    h = freqsd(b, a)
    h = freqsd(b, a, n)
    h = freqsd(b, a, w1)
    [h, w2] = freqsd(b, a)
    [h, w2] = freqsd(b, a, n)
    [h, w2] = freqsd(b, a, w1)
    Legacy name: freqs

    Inputs

    b

    Numerator coefficients of the filter. b is a real vector.

    a

    Denominator coefficients of the filter. a is a real vector.

    n

    Number of frequency points. n is a positive integer.

    Default: 200

    w1

    Frequency values. w1 is a vector.

    Outputs

    h

    Complex frequency response.

    w2

    Frequency values. w2 is a vector.

    Using freqsd without Output

    If you do not request an output, this function plots the magnitude and phase of the filter in the current plot window.

    [H, W] = freqsd([1 2 3], [2 1 3]);
    loglog(W, abs(H))

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: This product does not support FPGA devices


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