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,
with the QPSK modulator System object,
returns the baseband modulated output,
on the value of the
BitInput property, input
be an integer or bit valued column vector with numeric, logical, or
fixed-point data types.
H specifies the System object on which
to run this
The object performs an initialization the first time the
is executed. This initialization locks nontunable
properties and input specifications, such as dimensions,
complexity, and data type of the input data. If you change a nontunable
property or an input specification, the System object issues an
error. To change nontunable properties or inputs, you must first call
release method to unlock the object.