Scicos Block
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Quadrature Amplitude Modulation modulator block





The M-QAM modulator block computes a rectangular constellation of I/Q symbol components from unsigned integer values given by the regular input and defined in the interval ]0;M-1]. M is the dialogue parameter 'Number of states'. This parameter must be an integer computed with :


where M is the desired number of states of the modulation and k is an even integer number. The values produced in output are not normalized. For example, for a 16-QAM modulation, this block gives the following constellation diagram :
Figure 1: 16-QAM constellation diagram

Dialog box


Default properties

Interfacing function

Computational function

See also


A. Layec