LDPC codes not working in comm toolbox.

2014 7 11
1 个回答
更新时间：2019 4 26
129 次查看（30 天）

0 个投票

Hello, I want to implement the following code
H = dvbs2ldpc(3/5);
[r,c]=size(H);
henc = comm.LDPCEncoder(H);
hdec = comm.LDPCDecoder(H);
data=logical(randi([0 1],r, 1));
encodedData=step(henc, data);
However, I get the following error "
"Error using LDPCEncoder/step Input must be a column vector of length K."
What am I doing wrong

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回答（1 个）

Yonatan Marin
Yonatan Marin 2019-4-26

0 个投票

Hello Alex,
the problem lies in the data vector. It does not have the necessery size.
It must be k= #columns - #rows, where as the columns and rows of matrix H are meant.
Maybe
data=logical(randi([0 1],size(H,2)-size(H,1),1))
will work...
Best regards,
Yonatan

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