The forward-error-correction tag has no wiki summary.
2
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3answers
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Why is an interleaver often placed between an outer block code and an inner convolution code?
It seems that when doing FEC with a concatenated-code, an interleaver is often placed between the outer block code and the inner convolution code. The explanations I've seen say that this is because ...
1
vote
1answer
86 views
How to compute generator matrix from a parity check matrix?
I have a parity matrix ("H") that is not in canonical form (the identity matrix is not on the right side).
I'm trying to programatically calculate the generator matrix ("G") from it.
The Wikipedia ...
0
votes
1answer
61 views
Viterbi Decoder - Decoding Continuously Encoded Stream Partially
I am in trouble with Viterbi decoder for a while. I have some questions.
I need to decode messages from a continuous stream which is encoded without resetting the state metrics. Each message starts ...
0
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0answers
24 views
Using VCP2 on TI C6474
I am trying to use the Viterbi Coprocessor (VCP2) of TI C6474 DSP. Do you have any idea about how to store the states after decoding each frame and reuse them for the next message? This will allow to ...
7
votes
1answer
141 views
Deep space communications BER and FEC?
What kind of bit error rate do they get from deep space communications (Pioneer, Voyager, et.al.), and what kind of modulation and FEC allows them to recover messages with that microscopic level of ...
