Create systematic cyclic code from binary vector data
Block sublibrary of Error Detection and Correction
The Binary Cyclic Encoder block creates a systematic cyclic code with message length K and codeword length N. The number N must have the form 2^{M}1, where M is an integer greater than or equal to 3.
This block accepts a column vector input signal containing K elements. The out put signal is a column vector containing N elements.
You can determine the systematic cyclic coding scheme in one of two ways:
To create an [N,K] code, enter N and K as the first
and second dialog parameters, respectively. The block computes an
appropriate generator polynomial, namely, cyclpoly(N,K,'min')
.
To create a code with codeword length N and
a particular degree(NK) binary generator polynomial,
enter N as the first parameter and a binary vector
as the second parameter. The vector represents the generator polynomial
by listing its coefficients in order of ascending exponents. You can
create cyclic generator polynomials using the Communications System Toolbox™ cyclpoly
function.
For information about the data types each block port supports, see the Supported Data Type table on this page.
The codeword length, which is also the output vector length.
Either the message length, which is also the input vector length; or a binary vector that represents the generator polynomial for the code.
Port  Supported Data Types 

In 

Out 

cyclpoly
(in the Communications System Toolbox documentation)