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WsprTxScheduler improvements.

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git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@5715 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
This commit is contained in:
Steven Franke 2015-07-12 01:06:24 +00:00
parent f1989b3874
commit bdef43aed7
2 changed files with 48 additions and 15 deletions
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7
WSPRBandHopping.cpp
View File

@ -6,6 +6,7 @@
#include <QList>
#include <QSet>
#include <QtWidgets>
#include <sys/time.h>
#include "SettingsGroup.hpp"
#include "Configuration.hpp"
@ -118,6 +119,12 @@ Dialog::Dialog (QSettings * settings, Configuration const * configuration, BandL
main_layout->addLayout (bottom_layout);
setLayout (main_layout);
//init random seed for random number generator used in tx scheduler
struct timeval time;
gettimeofday(&time,NULL);
srand((time.tv_sec*1000)+(time.tv_usec/1000));
}
Dialog::~Dialog ()

56
WsprTxScheduler.cpp
View File

@ -50,11 +50,22 @@ int tx_sum()
int tx_add_one(char* tx)
{
int i;
for (i=1; i<59; i++) {
if( tx[i-1]==0 && tx[i]==0 && tx[i+1]==0 ) {
tx[i]=1;
return 1;
int i, j, txflag, ngap;
// adds one tx slot to an existing array without
// creating successive tx slots.
// try to fill largest gaps first
// try gap sizes of 13, 11, 9, 7, 5, and finally 3
for (ngap=13; ngap>=3; ngap=ngap-2) {
for (i=0; i< 60-ngap; i++) {
txflag=0;
for (j=0; j<ngap; j++) {
if( tx[i+j]==1 )
txflag=1;
}
if( txflag == 0 ) { // found a gap of size ngap
tx[i+ngap/2]=1;
return 1;
}
}
}
return 0;
@ -62,8 +73,16 @@ int tx_add_one(char* tx)
int tx_trim(char* tx, int ntxlim)
{
// trim array to that ntxlim is not exceeded
/* ntxlim is max number of successive transmissions
* trim array so that ntxlim is not exceeded
* also make sure that first slot is never a tx slot
* this enures that we won't get a double tx because of the
* last slot of one table and the first slot of the next table
* both being tx slots.
*/
int i,nrun,sum;
if( tx[0] == 1 ) tx[0] = 0;
nrun=0;
for (i=0; i<60; i++) {
if( tx[i]==1 ) {
@ -100,20 +119,24 @@ int create_tx_schedule(int pctx)
{
char bsum[10];
int i, j, k, sum, ntxlim, ntxbandmin, needed;
int iflag;
int iflag, nrx;
float rxavg,x;
needed=60*(pctx/100.0)+0.5;
srand(time(NULL));
memset(tx,0,sizeof(char)*60);
if( pctx < 17 ) {
needed=pctx*60/100;
for (i=0; i<needed; i++) {
tx[rand()%6][rand()%10]=1;
if( pctx <= 25 ) { // Use K1JT's algorithm in this regime
rxavg=100.0/pctx-1.0;
i=0;
while(i<60) {
x=(rand()%100)/100.0;
nrx=(rxavg+3.0*x-1.0); //2-5 for 25%
i=i+nrx+1;
tx[i/10][i%10]=1;
}
return 1;
} else if( pctx >= 17 && pctx < 33 ) {
} else if( pctx > 25 && pctx < 33 ) {
ntxlim=1;
ntxbandmin=1;
} else if( pctx >= 33 && pctx < 50 ) {
@ -126,7 +149,10 @@ int create_tx_schedule(int pctx)
ntxlim=3;
ntxbandmin=4;
}
// when txpct>25% create a table that guarantees that all
// bands will be visited 1, 2, or 3 times, as appropriate.
//
// start by filling each band slot with ntxbandmin tx's
for (i=0; i<ntxbandmin; i++) {
for (j=0; j<10; j++) {
@ -155,7 +181,7 @@ int create_tx_schedule(int pctx)
}
for(j=0; j < (needed-sum); j++ ) {
tx_add_one(*tx);
tx_add_one(*tx);
}
return 0;
}