System object: comm.HadamardCode
Package: comm
Generate Hadamard code
Y = step(H)
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, 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
the release method to unlock the object.