Jump to content

Talk:Convolutional code

Page contents not supported in other languages.
From Wikipedia, the free encyclopedia
This is an old revision of this page, as edited by Ulmer (talk | contribs) at 01:14, 3 December 2005 (about memory number). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Re the recent change to say that code rates could be equal to 1, I don't know of any such codes ever being used in practice, and it certainly doesn't seem very useful...

There *are* codes that when combined with M-ary modulation schemes produce one output symbol per input bit, but the output symbols are non-binary. But I don't think that's what you meant. Can you clarify?? User: Karn

From BrettE: This page doesn't descripte the ENCODING at all. Perhaps I'll add some of that later...

Josh Rubin: I second BrettE. The page for Reed-Solomon codes gives a rough but accurate definition; this page manages to talk about convolutional codes without defining them. A definition of "convolution" as used in mathematics and signal processing is in order too.

about memory number

Who can tell me the relation between the memory number of convolutional code and states.

For example, does 8-state mean the convolutional code has memory 3?

Retrieved from "https://en.wikipedia.org/w/index.php?title=Talk:Convolutional_code&oldid=29970605"