The specified codeword length and message length are not valid with using encode hamming

2017 6 9
1 个回答
更新时间：2017 6 10
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Hello,
i have this code to encode a 7 bit sequence to a 11 bit hamming code.
n = 11;
k = 7;
data = randi([0 1],k,1);
encData = encode(data,n,k,'hamming/binary');
but i get this error:
The specified codeword length and message length are not valid.
How can i solve this problem?

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回答（1 个）

Walter Roberson
Walter Roberson 2017-6-10

0 个投票

The formula works out such that you can only encode messages of length k if k = 2^n - n - 1 for some integer n. For example, messages of length 4 11 26 57 120 247 502 1013 2036 4083 ...

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