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qadm

Version:
    Last Modified: March 15, 2017

    Demodulates a sequence of complex Quadrature Amplitude Modulated (QAM) symbols into a series of integers.

    Syntax

    x = qadm(y, m)
    x = qadm(y, m, phi)
    x = qadm(y, m, phi, type)
    Legacy name: qamdemod

    Inputs

    y

    Symbols to demodulate. y is a non-integer numeric scalar or an array of any dimension.

    m

    M-ary QAM demodulation. m should be a square of a power of 2.

    phi

    Initial phase in radians. The default phi is 0.

    type

    Method to map symbols to demodulated integers. type is a string that accepts the following values:

    Name Description
    'Bin' (default)

    Uses binary mapping to demodulated integers.

    'Gray'

    Uses Gray-coded mapping to demodulated integers.

    Outputs

    x

    Demodulated inputs. x is the same size as y with integer values within the range [0, m-1].

    X = randint(1, 1000, 16)
    Y = qam(X, 16, 0, 'Gray')
    Z = qadm(Y, 16, 0, 'Gray')

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: This product does not support FPGA devices


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