Table Of Contents

phasedelay

Version:
    Last Modified: March 15, 2017

    Computes the phase delay vector and the frequency vector of a filter. If you do not request an output, this function plots the phase delay of the filter in the current plot window. phasedelay(b) is equivalent to phasedelay(b, [1], 512). phasedelay(b, a) is equivalent to phasedelay(b, a, 512).

    Syntax

    phasedelay(b)
    phasedelay(b, a)
    phasedelay(b, a, w)
    phasedelay(b, a, w, fs)
    phasedelay(b, a, n)
    phasedelay(b, a, n, 'whole')
    phasedelay(b, a, n, fs)
    phasedelay(b, a, n, 'whole', fs)
    h = phasedelay (b)
    h = phasedelay (b, a)
    h = phasedelay (b, a, n)
    h = phasedelay (b, a, n, 'whole')
    h = phasedelay (b, a, n, fs)
    h = phasedelay(b, a, w)
    h = phasedelay(b, a, w, fs)
    [h, f] = phasedelay(b)
    [h, f] = phasedelay(b, a)
    [h, f] = phasedelay(b, a, n)
    [h, f] = phasedelay(b, a, n, 'whole')
    [h, f] = phasedelay(b, a, n, fs)
    [h, f] = phasedelay(b, a, n, 'whole', fs)

    Inputs

    b

    Numerator coefficients of the filter. b is a vector.

    a

    Denominator coefficients of the filter. a is a vector.

    Default: [1]

    w

    Frequency points at which you want to evaluate the phase delay. If you do not specify w, MathScript evaluates the phase delay at n points equally spaced around the upper half of the unit circle. w is a vector.

    fs

    Sampling frequency in Hz. fs is a scalar.

    n

    Number of frequency points. n is a positive integer.

    Default: 512

    'whole'

    Directs MathScript to evaluate the phase delay at n points equally spaced around the unit circle.

    Outputs

    h

    Phase delay vector of the filter. h is a real vector.

    f

    Discrete frequency vector, in radians/sample, that corresponds to h. f is a vector.

    b = [1, 2];
    a = [-1, 1, 1, 3];
    n = 32;
    [H, F] = phasedelay(b, a, n)

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: This product does not support FPGA devices


    Recently Viewed Topics