BCH code parameters for DVB S2

2019 10 8
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更新时间：2020 3 13
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The DVBS2 standard defines A t-error correcting BCH (Nbch, Kbch) . For a specific LDPC rate (1/4) the BCH parameters are (16200,16008),
When I use these parameters in MATLAB , code = bchenc(msg,16200,16008)
this does not work as N=16200 and not in the form 2^m-1.
Any help, much appreciated

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回答（1 个）

Chidvi Modala
Chidvi Modala 2020-3-13

1 个投票

The BCHEncoding in DVBS2 standard uses shortened code. bchenc function supports creation of full-length BCH code(Code word length should be of the form 2^M-1) only. Instead, you may use comm.BCHEncoder function which provides support for shortened codes as well.

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