Y = step(H)
Y = step(H) outputs a frame of the Barker code in column vector Y. You specify the frame length with the SamplesPerFrame property. The output code is in a bi-polar format with 0 and 1 mapped to 1 and -1, respectively.
Note: 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.