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Some code cleanup.

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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@6496 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Steven Franke 2016-02-26 01:10:23 +00:00
parent fef14a566f
commit a7e1e8ee75
3 changed files with 11 additions and 21 deletions
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16
lib/ldpc/enc.c
View File

@ -155,27 +155,19 @@ void mixed_encode
// Wrapper for calling sparse_encode from fortran
void ldpc_encode_(
char msg[82],
char cdw[128]
char msg[N-M],
char cdw[N]
){
int i;
char checks[46];
char checks[M];
printf("msg: ");
for (i=0; i<82; i++) {
printf("%d", msg[i]); }
printf("\n");
sparse_encode(msg,cdw);
mod2sparse_mulvec (H, cdw, checks);
for (i = 0; i<46; i++) {
for (i = 0; i<M; i++) {
if( checks[i] == 1 ) {
printf("Failed to encode.\n");
abort();
}
}
printf("cdw: ");
for (i=0; i<128; i++) {
printf("%d", cdw[i]); }
printf("\n");
}

2
lib/ldpc/jtmode_codes/ldpc-search
View File

@ -14,7 +14,7 @@ for i in `seq 1 1000`
do
seed=$i
echo seed $seed
make-ldpc ldpc.pchk $m $n $seed evenboth 120x3/8x4 no4cycle
make-ldpc ldpc.pchk $m $n $seed evenboth 124x3/4x4 no4cycle
make-gen ldpc.pchk ldpc.gen dense
encode ldpc.pchk ldpc.gen ldpc.src ldpc.enc
transmit ldpc.enc ldpc.rec 1 awgn 0.7

14
lib/ldpc/msksim.f90
View File

@ -2,26 +2,25 @@ program msksim
use, intrinsic :: iso_c_binding
parameter (N=128, M=46, K=82) ! M and N are global variables on the C side.
parameter (N=128, M=48, K=80) ! M and N are global variables on the C side.
integer(1) message(1:K)
integer(1) codeword(1:N)
integer(1) decoded(1:K)
real*8 lratio(N)
character(50) pchk_file,gen_file
pchk_file="./jtmode_codes/ldpc-128-82-sf11.pchk"
gen_file="./jtmode_codes/ldpc-128-82-sf11.gen"
pchk_file="./jtmode_codes/ldpc-128-80-sf13.pchk"
gen_file="./jtmode_codes/ldpc-128-80-sf13.gen"
call init_ldpc(trim(pchk_file)//char(0),trim(gen_file)//char(0))
message(1:41)=1
message(42:82)=0
message(1:40)=1
message(41:80)=0
call ldpc_encode(message,codeword)
max_iterations=10
ntrials=1000000
rate=82.0/128.0
rate=real(K)/real(N)
write(*,*) "Eb/N0 ngood nundetected"
do idb = 0, 11
@ -30,7 +29,6 @@ do idb = 0, 11
ngood=0
nue=0
aviter=0.0
do itrial=1, ntrials