robert@wiliki.eng.hawaii.edu (Robert Morelos-Zaragoza) (02/05/91)
In article <27AE349E.20032@ics.uci.edu> roy@ics.uci.edu (John Roy) writes: > >Does anybody have any recomendations on good (practical) error >correction books? > >I'm specifically looking for an algorithm to decode a BCH(31,21) block >code (used in POCSAG). Check: Lin and Costello, "Error Control Coding: Fundamentals and Applications", Prentice Hall, 1983. The (31,21) BCH code has minimum distance 5, which means it can correct any 2 random errors. If I remember correctly (I do not have the book with me right now), this code can be (relatively) easily decoded with majority-logic decoding, as opposed to Berlekamp-Massey's algorithm (which is quite complex). Check it out in the book. > >thanks, >jmar You are welcome, Robert Morelos-Zaragoza (808) 956-6250 Department of Electrical Engineering University of Hawaii at Manoa 2540 Dole Street #483 Honolulu, Hawaii 96822