step
System object: comm.GeneralQAMModulator
Namespace: comm
Modulate using arbitrary QAM constellation
Syntax
Y = step(H,X)
Description
Note
Starting in R2016b, instead of using the step
method to perform the operation defined by the System object™, you can call the object with arguments, as if it were a function. For example, y = step(obj,x)
and y = obj(x)
perform equivalent operations.
Y = step(H,X)
modulates input data, X
,
with the general QAM modulator System object, H
.
It returns the baseband modulated output, Y
. The
input must be an integer scalar or an integer-valued column vector.
The data type of the input can be numeric or unsigned fixed point
of word length ceil(log2(ModulationOrder
)) (fi
object).
Note
obj
specifies the System object on which to run this step
method.
The object performs an initialization the first time the step
method is executed. This initialization locks nontunable properties and
input specifications. For more information on changing property values, see System Design in MATLAB Using System Objects.