step
System object: comm.HadamardCode
Package: comm
Generate Hadamard code
Syntax
Y = step(H)
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)
and y = obj()
perform equivalent
operations.
Y = step(H)
outputs a frame of the Hadamard
code in column vector Y
. Specify the frame length
with the SamplesPerFrame
property. The Hadamard code
corresponds to one of the rows of an NxN Hadamard
matrix, where N is a nonnegative power of 2, which
you specify in the Length
property. Use the Index
property
to choose the row of the Hadamard matrix. The step
method
outputs the code in a bi-polar format with 0
and 1
mapped
to 1
and -1
, respectively.
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.