w4kek/WSJT-X
1
0
Fork 0
mirror of https://github.com/saitohirga/WSJT-X.git synced 2025-10-31 13:10:19 -04:00
Code Issues Packages Projects Releases Wiki Activity

Fine tuned sync-search and iifac. No more quickmode on second pass.

Browse Source 
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@5668 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Steven Franke 2015-07-03 02:39:38 +00:00
parent 9ad2739d6a
commit 03b3b1a47d
1 changed files with 6 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
lib/wsprd/wsprd_exp.c
View File

@ -616,7 +616,7 @@ int main(int argc, char *argv[])
maxcycles=10000; //Fano timeout limit
double minsync1=0.10; //First sync limit
double minsync2=0.12; //Second sync limit
int iifac=13; //Step size in final DT peakup
int iifac=8; //Step size in final DT peakup
int symfac=50; //Soft-symbol normalizing factor
int maxdrift=4; //Maximum (+/-) drift
double minrms=52.0 * (symfac/64.0); //Final test for plausible decoding
@ -784,9 +784,6 @@ int main(int argc, char *argv[])
for (ipass=0; ipass<npasses; ipass++) {
if( ipass == 1 && uniques == 0 ) break;
// if( ipass == 1 ) { //otherwise we bog down on the second pass
// quickmode = 1;
// }
memset(ps,0.0, sizeof(float)*512*nffts);
for (i=0; i<nffts; i++) {
@ -995,8 +992,7 @@ int main(int argc, char *argv[])
sync1=sync0[j];
// do coarse searches over lag and freq, then check sync to see
// if we should continue.
// coarse-grid lag and freq search, then if sync>minsync1 continue
fstep=0.0; ifmin=0; ifmax=0;
lagmin=shift1-128;
lagmax=shift1+128;
@ -1012,16 +1008,17 @@ int main(int argc, char *argv[])
lagmin, lagmax, lagstep, &drift1, symfac, &sync1, 1);
tsync1 += (double)(clock()-t0)/CLOCKS_PER_SEC;
// fine-grid lag and freq search
if( sync1 > minsync1 ) {
// fine search over lag
lagmin=shift1-32; lagmax=shift1+32; lagstep=8;
lagmin=shift1-32; lagmax=shift1+32; lagstep=16;
t0 = clock();
sync_and_demodulate(idat, qdat, npoints, symbols, &f1, ifmin, ifmax, fstep, &shift1,
lagmin, lagmax, lagstep, &drift1, symfac, &sync1, 0);
tsync0 += (double)(clock()-t0)/CLOCKS_PER_SEC;
// fine search over frequency
fstep=0.05; ifmin=-3; ifmax=3;
fstep=0.05; ifmin=-2; ifmax=2;
t0 = clock();
sync_and_demodulate(idat, qdat, npoints, symbols, &f1, ifmin, ifmax, fstep, &shift1,
lagmin, lagmax, lagstep, &drift1, symfac, &sync1, 1);