46 lines
1.9 KiB
Plaintext
46 lines
1.9 KiB
Plaintext
|
#!/bin/sh
|
||
|
|
|
||
|
|
# Example of how an LDPC code can be encoded using using sparse,
|
||
|
|
# dense, and mixed representations of the generator matrix. The dense
|
||
|
|
# and mixed representations are based on the same set of message bits
|
||
|
|
# as the sparse method with minprod heuristic. This allows the correctness
|
||
|
|
# of these methods to be checked by verifying that they all produce the same
|
||
|
|
# result when encoding random messages. The results are also checked by
|
||
|
|
# 'verify'.
|
||
|
|
#
|
||
|
|
# A (400,200) LDPC code with 3 checks per bit is used for the test.
|
||
|
|
|
||
|
|
set -e # Stop if an error occurs
|
||
|
|
set -v # Echo commands as they are read
|
||
|
|
|
||
|
|
make-ldpc ex-ldpc-encode.pchk 200 400 1 evenboth 3
|
||
|
|
|
||
|
|
make-gen ex-ldpc-encode.pchk ex-ldpc-encode.genf sparse first
|
||
|
|
make-gen ex-ldpc-encode.pchk ex-ldpc-encode.genc sparse mincol
|
||
|
|
make-gen ex-ldpc-encode.pchk ex-ldpc-encode.genp sparse minprod
|
||
|
|
make-gen ex-ldpc-encode.pchk ex-ldpc-encode.gend dense ex-ldpc-encode.genp
|
||
|
|
make-gen ex-ldpc-encode.pchk ex-ldpc-encode.genm mixed ex-ldpc-encode.genp
|
||
|
|
|
||
|
|
rand-src ex-ldpc-encode.src 1 200x10
|
||
|
|
|
||
|
|
encode ex-ldpc-encode.pchk ex-ldpc-encode.genf ex-ldpc-encode.src \
|
||
|
|
ex-ldpc-encode.encf
|
||
|
|
encode ex-ldpc-encode.pchk ex-ldpc-encode.genc ex-ldpc-encode.src \
|
||
|
|
ex-ldpc-encode.encc
|
||
|
|
encode ex-ldpc-encode.pchk ex-ldpc-encode.genp ex-ldpc-encode.src \
|
||
|
|
ex-ldpc-encode.encp
|
||
|
|
encode ex-ldpc-encode.pchk ex-ldpc-encode.gend ex-ldpc-encode.src \
|
||
|
|
ex-ldpc-encode.encd
|
||
|
|
encode ex-ldpc-encode.pchk ex-ldpc-encode.genm ex-ldpc-encode.src \
|
||
|
|
ex-ldpc-encode.encm
|
||
|
|
|
||
|
|
cmp ex-ldpc-encode.encp ex-ldpc-encode.encd
|
||
|
|
cmp ex-ldpc-encode.encp ex-ldpc-encode.encm
|
||
|
|
|
||
|
|
verify ex-ldpc-encode.pchk ex-ldpc-encode.encf ex-ldpc-encode.genf \
|
||
|
|
ex-ldpc-encode.src
|
||
|
|
verify ex-ldpc-encode.pchk ex-ldpc-encode.encc ex-ldpc-encode.genc \
|
||
|
|
ex-ldpc-encode.src
|
||
|
|
verify ex-ldpc-encode.pchk ex-ldpc-encode.encp ex-ldpc-encode.genp \
|
||
|
|
ex-ldpc-encode.src
|