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System object: comm.gpu.ConvolutionalEncoder
Package: comm.gpu

Convolutionally encode binary data


Y = step(H,X)



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) encodes the binary data, X, using the convolutional encoding that you specify in the TrellisStructure property. It returns the encoded data, Y. Both X and Y are column vectors of data type single, double, or logical. When the convolutional encoder represents a rate K/N code, the length of the input vector equals K × L, for a positive integer, L. The step method sets the length of the output vector, Y, to L × N.


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.