int main(int argc, char *argv[]){
/* LALStatus pointer */
static LALStatus status;
/* time and velocity */
static LIGOTimeGPSVector timeV;
static REAL8Cart3CoorVector velV;
static REAL8Vector timeDiffV;
LIGOTimeGPS firstTimeStamp;
/* standard pulsar sft types */
MultiSFTVector *inputSFTs = NULL;
UINT4 binsSFT;
UINT4 sftFminBin;
UINT4 numsft;
INT4 k;
FILE *fp=NULL;
/* information about all the ifos */
MultiDetectorStateSeries *mdetStates = NULL;
UINT4 numifo;
/* vector of weights */
REAL8Vector weightsV;
/* ephemeris */
EphemerisData *edat=NULL;
static UCHARPeakGram pg1;
static HoughTemplate pulsarTemplate;
static REAL8Vector foft;
/* miscellaneous */
UINT4 mObsCoh;
REAL8 timeBase, deltaF;
REAL8 numberCount;
/* Chi2Test parameters */
HoughParamsTest chi2Params;
REAL8Vector numberCountV; /* Vector with the number count of each block inside */
REAL8 numberCountTotal; /* Sum over all the numberCounts */
REAL8 chi2;
/* sft constraint variables */
LIGOTimeGPS startTimeGPS, endTimeGPS;
LIGOTimeGPSVector *inputTimeStampsVector=NULL;
REAL8 alphaPeak, meanN, sigmaN;
/* user input variables */
BOOLEAN uvar_help, uvar_weighAM, uvar_weighNoise;
INT4 uvar_blocksRngMed, uvar_nfSizeCylinder, uvar_maxBinsClean;
REAL8 uvar_startTime, uvar_endTime;
REAL8 uvar_fStart, uvar_peakThreshold, uvar_fSearchBand;
REAL8 uvar_Alpha, uvar_Delta, uvar_Freq, uvar_fdot;
REAL8 uvar_AlphaWeight, uvar_DeltaWeight;
CHAR *uvar_earthEphemeris=NULL;
CHAR *uvar_sunEphemeris=NULL;
CHAR *uvar_sftDir=NULL;
CHAR *uvar_timeStampsFile=NULL;
CHAR *uvar_outfile=NULL;
LALStringVector *uvar_linefiles=NULL;
INT4 uvar_p;
/* Set up the default parameters */
/* LAL error-handler */
lal_errhandler = LAL_ERR_EXIT;
uvar_help = FALSE;
uvar_weighAM = TRUE;
uvar_weighNoise = TRUE;
uvar_blocksRngMed = BLOCKSRNGMED;
uvar_nfSizeCylinder = NFSIZE;
uvar_fStart = F0;
uvar_fSearchBand = FBAND;
uvar_peakThreshold = THRESHOLD;
uvar_maxBinsClean = 100;
uvar_startTime= 0;
uvar_endTime = LAL_INT4_MAX;
uvar_Alpha = 1.0;
uvar_Delta = 1.0;
uvar_Freq = 310.0;
uvar_fdot = 0.0;
uvar_AlphaWeight = uvar_Alpha;
uvar_DeltaWeight = uvar_Delta;
uvar_p = NBLOCKSTEST;
chi2Params.length=uvar_p;
chi2Params.numberSFTp=NULL;
chi2Params.sumWeight=NULL;
chi2Params.sumWeightSquare=NULL;
uvar_outfile = (CHAR *)LALCalloc( MAXFILENAMELENGTH , sizeof(CHAR));
strcpy(uvar_outfile, "./tempout");
uvar_earthEphemeris = (CHAR *)LALCalloc( MAXFILENAMELENGTH , sizeof(CHAR));
strcpy(uvar_earthEphemeris,EARTHEPHEMERIS);
uvar_sunEphemeris = (CHAR *)LALCalloc( MAXFILENAMELENGTH , sizeof(CHAR));
strcpy(uvar_sunEphemeris,SUNEPHEMERIS);
uvar_sftDir = (CHAR *)LALCalloc( MAXFILENAMELENGTH , sizeof(CHAR));
strcpy(uvar_sftDir,SFTDIRECTORY);
/* register user input variables */
LAL_CALL( LALRegisterBOOLUserVar( &status, "help", 'h', UVAR_HELP, "Print this message", &uvar_help), &status);
LAL_CALL( LALRegisterREALUserVar( &status, "fStart", 'f', UVAR_OPTIONAL, "Start search frequency", &uvar_fStart), &status);
LAL_CALL( LALRegisterREALUserVar( &status, "fSearchBand", 'b', UVAR_OPTIONAL, "Search frequency band", &uvar_fSearchBand), &status);
LAL_CALL( LALRegisterREALUserVar( &status, "startTime", 0, UVAR_OPTIONAL, "GPS start time of observation", &uvar_startTime), &status);
LAL_CALL( LALRegisterREALUserVar( &status, "endTime", 0, UVAR_OPTIONAL, "GPS end time of observation", &uvar_endTime), &status);
LAL_CALL( LALRegisterSTRINGUserVar( &status, "timeStampsFile", 0, UVAR_OPTIONAL, "Input time-stamps file", &uvar_timeStampsFile), &status);
LAL_CALL( LALRegisterREALUserVar( &status, "peakThreshold", 0, UVAR_OPTIONAL, "Peak selection threshold", &uvar_peakThreshold), &status);
LAL_CALL( LALRegisterBOOLUserVar( &status, "weighAM", 0, UVAR_OPTIONAL, "Use amplitude modulation weights", &uvar_weighAM), &status);
LAL_CALL( LALRegisterBOOLUserVar( &status, "weighNoise", 0, UVAR_OPTIONAL, "Use SFT noise weights", &uvar_weighNoise), &status);
LAL_CALL( LALRegisterSTRINGUserVar( &status, "earthEphemeris", 'E', UVAR_OPTIONAL, "Earth Ephemeris file", &uvar_earthEphemeris), &status);
LAL_CALL( LALRegisterSTRINGUserVar( &status, "sunEphemeris", 'S', UVAR_OPTIONAL, "Sun Ephemeris file", &uvar_sunEphemeris), &status);
LAL_CALL( LALRegisterSTRINGUserVar( &status, "sftDir", 'D', UVAR_REQUIRED, "SFT filename pattern", &uvar_sftDir), &status);
LAL_CALL( LALRegisterLISTUserVar( &status, "linefiles", 0, UVAR_OPTIONAL, "Comma separated List of linefiles (filenames must contain IFO name)",
&uvar_linefiles), &status);
LAL_CALL( LALRegisterREALUserVar( &status, "Alpha", 0, UVAR_OPTIONAL, "Sky location (longitude)", &uvar_Alpha), &status);
LAL_CALL( LALRegisterREALUserVar( &status, "Delta", 0, UVAR_OPTIONAL, "Sky location (latitude)", &uvar_Delta), &status);
LAL_CALL( LALRegisterREALUserVar( &status, "Freq", 0, UVAR_OPTIONAL, "Template frequency", &uvar_Freq), &status);
LAL_CALL( LALRegisterREALUserVar( &status, "fdot", 0, UVAR_OPTIONAL, "First spindown", &uvar_fdot), &status);
LAL_CALL( LALRegisterREALUserVar( &status, "AlphaWeight", 0, UVAR_OPTIONAL, "sky Alpha for weight calculation", &uvar_AlphaWeight), &status);
LAL_CALL( LALRegisterREALUserVar( &status, "DeltaWeight", 0, UVAR_OPTIONAL, "sky Delta for weight calculation", &uvar_DeltaWeight), &status);
LAL_CALL( LALRegisterINTUserVar( &status, "nfSizeCylinder", 0, UVAR_OPTIONAL, "Size of cylinder of PHMDs", &uvar_nfSizeCylinder), &status);
LAL_CALL( LALRegisterINTUserVar( &status, "blocksRngMed", 0, UVAR_OPTIONAL, "Running Median block size", &uvar_blocksRngMed), &status);
LAL_CALL( LALRegisterINTUserVar( &status, "maxBinsClean", 0, UVAR_OPTIONAL, "Maximum number of bins in cleaning", &uvar_maxBinsClean), &status);
LAL_CALL( LALRegisterSTRINGUserVar( &status, "outfile", 0, UVAR_OPTIONAL, "output file name", &uvar_outfile), &status);
LAL_CALL( LALRegisterINTUserVar( &status, "pdatablock", 'p', UVAR_OPTIONAL, "Number of data blocks for veto tests", &uvar_p), &status);
/* read all command line variables */
LAL_CALL( LALUserVarReadAllInput(&status, argc, argv), &status);
/* exit if help was required */
if (uvar_help)
exit(0);
/* very basic consistency checks on user input */
if ( uvar_fStart < 0 ) {
fprintf(stderr, "start frequency must be positive\n");
exit(1);
}
if ( uvar_fSearchBand < 0 ) {
fprintf(stderr, "search frequency band must be positive\n");
exit(1);
}
if ( uvar_peakThreshold < 0 ) {
fprintf(stderr, "peak selection threshold must be positive\n");
exit(1);
}
/***** start main calculations *****/
chi2Params.length=uvar_p;
chi2Params.numberSFTp = (UINT4 *)LALMalloc( uvar_p*sizeof(UINT4));
chi2Params.sumWeight = (REAL8 *)LALMalloc( uvar_p*sizeof(REAL8));
chi2Params.sumWeightSquare = (REAL8 *)LALMalloc( uvar_p*sizeof(REAL8));
/* read sft Files and set up weights */
{
/* new SFT I/O data types */
SFTCatalog *catalog = NULL;
static SFTConstraints constraints;
REAL8 doppWings, f_min, f_max;
/* set detector constraint */
constraints.detector = NULL;
if ( LALUserVarWasSet( &uvar_startTime ) ) {
XLALGPSSetREAL8(&startTimeGPS, uvar_startTime);
constraints.minStartTime = &startTimeGPS;
}
if ( LALUserVarWasSet( &uvar_endTime ) ) {
XLALGPSSetREAL8(&endTimeGPS, uvar_endTime);
constraints.maxEndTime = &endTimeGPS;
}
if ( LALUserVarWasSet( &uvar_timeStampsFile ) ) {
LAL_CALL ( LALReadTimestampsFile ( &status, &inputTimeStampsVector, uvar_timeStampsFile), &status);
constraints.timestamps = inputTimeStampsVector;
}
/* get sft catalog */
LAL_CALL( LALSFTdataFind( &status, &catalog, uvar_sftDir, &constraints), &status);
if ( (catalog == NULL) || (catalog->length == 0) ) {
fprintf (stderr,"Unable to match any SFTs with pattern '%s'\n", uvar_sftDir );
exit(1);
}
/* now we can free the inputTimeStampsVector */
if ( LALUserVarWasSet( &uvar_timeStampsFile ) ) {
LALDestroyTimestampVector ( &status, &inputTimeStampsVector);
}
/* get some sft parameters */
mObsCoh = catalog->length; /* number of sfts */
deltaF = catalog->data->header.deltaF; /* frequency resolution */
timeBase= 1.0/deltaF; /* coherent integration time */
// unused: UINT8 f0Bin = floor( uvar_fStart * timeBase + 0.5); /* initial search frequency */
// unused: INT4 length = uvar_fSearchBand * timeBase; /* total number of search bins - 1 */
/* catalog is ordered in time so we can get start, end time and tObs*/
firstTimeStamp = catalog->data[0].header.epoch;
// unused: LIGOTimeGPS lastTimeStamp = catalog->data[mObsCoh - 1].header.epoch;
/* allocate memory for velocity vector */
velV.length = mObsCoh;
velV.data = NULL;
velV.data = (REAL8Cart3Coor *)LALCalloc(mObsCoh, sizeof(REAL8Cart3Coor));
/* allocate memory for timestamps vector */
timeV.length = mObsCoh;
timeV.data = NULL;
timeV.data = (LIGOTimeGPS *)LALCalloc( mObsCoh, sizeof(LIGOTimeGPS));
/* allocate memory for vector of time differences from start */
timeDiffV.length = mObsCoh;
timeDiffV.data = NULL;
timeDiffV.data = (REAL8 *)LALCalloc(mObsCoh, sizeof(REAL8));
/* add wings for Doppler modulation and running median block size*/
doppWings = (uvar_fStart + uvar_fSearchBand) * VTOT;
f_min = uvar_fStart - doppWings - (uvar_blocksRngMed + uvar_nfSizeCylinder) * deltaF;
f_max = uvar_fStart + uvar_fSearchBand + doppWings + (uvar_blocksRngMed + uvar_nfSizeCylinder) * deltaF;
/* read sft files making sure to add extra bins for running median */
/* read the sfts */
LAL_CALL( LALLoadMultiSFTs ( &status, &inputSFTs, catalog, f_min, f_max), &status);
/* clean sfts if required */
if ( LALUserVarWasSet( &uvar_linefiles ) )
{
RandomParams *randPar=NULL;
FILE *fpRand=NULL;
INT4 seed, ranCount;
if ( (fpRand = fopen("/dev/urandom", "r")) == NULL ) {
fprintf(stderr,"Error in opening /dev/urandom" );
exit(1);
}
if ( (ranCount = fread(&seed, sizeof(seed), 1, fpRand)) != 1 ) {
fprintf(stderr,"Error in getting random seed" );
exit(1);
}
LAL_CALL ( LALCreateRandomParams (&status, &randPar, seed), &status );
LAL_CALL( LALRemoveKnownLinesInMultiSFTVector ( &status, inputSFTs, uvar_maxBinsClean, uvar_blocksRngMed, uvar_linefiles, randPar), &status);
LAL_CALL ( LALDestroyRandomParams (&status, &randPar), &status);
fclose(fpRand);
} /* end cleaning */
/* SFT info -- assume all SFTs have same length */
numifo = inputSFTs->length;
binsSFT = inputSFTs->data[0]->data->data->length;
sftFminBin = (INT4) floor(inputSFTs->data[0]->data[0].f0 * timeBase + 0.5);
LAL_CALL( LALDestroySFTCatalog( &status, &catalog ), &status);
} /* end of sft reading block */
/* get detector velocities weights vector, and timestamps */
{
MultiNoiseWeights *multweight = NULL;
MultiPSDVector *multPSD = NULL;
UINT4 iIFO, iSFT, j;
/* get ephemeris */
edat = (EphemerisData *)LALCalloc(1, sizeof(EphemerisData));
(*edat).ephiles.earthEphemeris = uvar_earthEphemeris;
(*edat).ephiles.sunEphemeris = uvar_sunEphemeris;
LAL_CALL( LALInitBarycenter( &status, edat), &status);
/* normalize sfts */
LAL_CALL( LALNormalizeMultiSFTVect (&status, &multPSD, inputSFTs, uvar_blocksRngMed), &status);
/* set up weights */
weightsV.length = mObsCoh;
weightsV.data = (REAL8 *)LALCalloc(1, mObsCoh * sizeof(REAL8));
/* initialize all weights to unity */
LAL_CALL( LALHOUGHInitializeWeights( &status, &weightsV), &status);
/* compute multi noise weights if required */
if ( uvar_weighNoise ) {
LAL_CALL ( LALComputeMultiNoiseWeights ( &status, &multweight, multPSD, uvar_blocksRngMed, 0), &status);
}
/* we are now done with the psd */
LAL_CALL ( LALDestroyMultiPSDVector ( &status, &multPSD), &status);
/* get information about all detectors including velocity and timestamps */
/* note that this function returns the velocity at the
mid-time of the SFTs -- should not make any difference */
LAL_CALL ( LALGetMultiDetectorStates ( &status, &mdetStates, inputSFTs, edat), &status);
/* copy the timestamps, weights, and velocity vector */
for (j = 0, iIFO = 0; iIFO < numifo; iIFO++ ) {
numsft = mdetStates->data[iIFO]->length;
for ( iSFT = 0; iSFT < numsft; iSFT++, j++) {
velV.data[j].x = mdetStates->data[iIFO]->data[iSFT].vDetector[0];
velV.data[j].y = mdetStates->data[iIFO]->data[iSFT].vDetector[1];
velV.data[j].z = mdetStates->data[iIFO]->data[iSFT].vDetector[2];
if ( uvar_weighNoise )
weightsV.data[j] = multweight->data[iIFO]->data[iSFT];
/* mid time of sfts */
timeV.data[j] = mdetStates->data[iIFO]->data[iSFT].tGPS;
} /* loop over SFTs */
} /* loop over IFOs */
if ( uvar_weighNoise ) {
LAL_CALL( LALHOUGHNormalizeWeights( &status, &weightsV), &status);
}
/* compute the time difference relative to startTime for all SFTs */
for(j = 0; j < mObsCoh; j++)
timeDiffV.data[j] = XLALGPSDiff( timeV.data + j, &firstTimeStamp );
if ( uvar_weighNoise ) {
LAL_CALL ( LALDestroyMultiNoiseWeights ( &status, &multweight), &status);
}
} /* end block for noise weights, velocity and time */
/* calculate amplitude modulation weights if required */
if (uvar_weighAM)
{
MultiAMCoeffs *multiAMcoef = NULL;
UINT4 iIFO, iSFT;
SkyPosition skypos;
/* get the amplitude modulation coefficients */
skypos.longitude = uvar_AlphaWeight;
skypos.latitude = uvar_DeltaWeight;
skypos.system = COORDINATESYSTEM_EQUATORIAL;
LAL_CALL ( LALGetMultiAMCoeffs ( &status, &multiAMcoef, mdetStates, skypos), &status);
/* loop over the weights and multiply them by the appropriate
AM coefficients */
for ( k = 0, iIFO = 0; iIFO < numifo; iIFO++) {
numsft = mdetStates->data[iIFO]->length;
for ( iSFT = 0; iSFT < numsft; iSFT++, k++) {
REAL8 a, b;
a = multiAMcoef->data[iIFO]->a->data[iSFT];
b = multiAMcoef->data[iIFO]->b->data[iSFT];
weightsV.data[k] *= (a*a + b*b);
} /* loop over SFTs */
} /* loop over IFOs */
LAL_CALL( LALHOUGHNormalizeWeights( &status, &weightsV), &status);
XLALDestroyMultiAMCoeffs ( multiAMcoef );
} /* end AM weights calculation */
/* misc. memory allocations */
/* memory for one spindown */
pulsarTemplate.spindown.length = 1;
pulsarTemplate.spindown.data = NULL;
pulsarTemplate.spindown.data = (REAL8 *)LALMalloc(sizeof(REAL8));
/* copy template parameters */
pulsarTemplate.spindown.data[0] = uvar_fdot;
pulsarTemplate.f0 = uvar_Freq;
pulsarTemplate.latitude = uvar_Delta;
pulsarTemplate.longitude = uvar_Alpha;
/* memory for f(t) vector */
foft.length = mObsCoh;
foft.data = NULL;
foft.data = (REAL8 *)LALMalloc(mObsCoh*sizeof(REAL8));
/* memory for peakgram */
pg1.length = binsSFT;
pg1.data = NULL;
pg1.data = (UCHAR *)LALCalloc( binsSFT, sizeof(UCHAR));
/* memory for number Count Vector */
numberCountV.length = uvar_p;
numberCountV.data = NULL;
numberCountV.data = (REAL8 *)LALMalloc( uvar_p*sizeof(REAL8));
/* block for calculating peakgram and number count */
{
UINT4 iIFO, iSFT, ii, numberSFTp;
INT4 ind;
REAL8 sumWeightSquare;
SFTtype *sft;
/* compute mean and sigma for noise only */
/* first calculate the sum of the weights squared */
sumWeightSquare = 0.0;
for ( k = 0; k < (INT4)mObsCoh; k++)
sumWeightSquare += weightsV.data[k] * weightsV.data[k];
/* probability of selecting a peak expected mean and standard deviation for noise only */
alphaPeak = exp( - uvar_peakThreshold);
meanN = mObsCoh* alphaPeak;
sigmaN = sqrt(sumWeightSquare * alphaPeak * (1.0 - alphaPeak));
/* the received frequency as a function of time */
LAL_CALL( ComputeFoft(&status, &foft, &pulsarTemplate, &timeDiffV, &velV, timeBase), &status);
LAL_CALL(SplitSFTs(&status, &weightsV, &chi2Params), &status);
/* loop over SFT, generate peakgram and get number count */
UINT4 j;
j=0;
iIFO=0;
iSFT=0;
numsft = mdetStates->data[iIFO]->length;
for (k=0 ; k<uvar_p ; k++ ){
numberSFTp=chi2Params.numberSFTp[k];
numberCount = 0;
for (ii=0 ; (ii < numberSFTp)&&(iIFO<numifo) ; ii++) {
sft = inputSFTs->data[iIFO]->data + iSFT;
LAL_CALL (SFTtoUCHARPeakGram( &status, &pg1, sft, uvar_peakThreshold), &status);
ind = floor( foft.data[j]*timeBase - sftFminBin + 0.5);
numberCount += pg1.data[ind]*weightsV.data[j];
j++;
iSFT++;
if (iSFT >= numsft){
iIFO++;
iSFT=0;
if (iIFO<numifo){
numsft = mdetStates->data[iIFO]->length;
}
}
} /* loop over SFTs */
numberCountV.data[k]=numberCount;
} /* loop over blocks */
}
/* Chi2 Test */
{
REAL8 eta; /* Auxiliar variable */
REAL8 nj, sumWeightj, sumWeightSquarej;
numberCountTotal=0;
chi2=0;
for(k=0; k<uvar_p ; k++){
numberCountTotal += numberCountV.data[k];
}
eta=numberCountTotal/mObsCoh;
INT4 j;
for(j=0 ; j<(uvar_p) ; j++){
nj=numberCountV.data[j];
sumWeightj=chi2Params.sumWeight[j];
sumWeightSquarej=chi2Params.sumWeightSquare[j];
chi2 += (nj-sumWeightj*eta)*(nj-sumWeightj*eta)/(sumWeightSquarej*eta*(1-eta));
}
}
fp = fopen(uvar_outfile , "w");
setvbuf(fp, (char *)NULL, _IOLBF, 0);
fprintf(fp, "%g %g %g %g %g %g %g %g \n", (numberCountTotal - meanN)/sigmaN, meanN ,sigmaN, chi2, uvar_Freq, uvar_Alpha, uvar_Delta, uvar_fdot);
/* fprintf(stdout, "%g %g %g %g %g %g %g %g \n", (numberCountTotal - meanN)/sigmaN, meanN ,sigmaN, chi2, uvar_Freq, uvar_Alpha, uvar_Delta, uvar_fdot);*/
fclose(fp);
/* free memory */
LALFree(pulsarTemplate.spindown.data);
LALFree(timeV.data);
LALFree(timeDiffV.data);
LALFree(foft.data);
LALFree(velV.data);
LALFree(weightsV.data);
XLALDestroyMultiDetectorStateSeries ( mdetStates );
LALFree(edat->ephemE);
LALFree(edat->ephemS);
LALFree(edat);
LAL_CALL (LALDestroyMultiSFTVector(&status, &inputSFTs), &status );
LALFree(pg1.data);
LALFree(numberCountV.data);
LALFree(chi2Params.numberSFTp);
LALFree(chi2Params.sumWeight);
LALFree(chi2Params.sumWeightSquare);
LAL_CALL (LALDestroyUserVars(&status), &status);
LALCheckMemoryLeaks();
if ( lalDebugLevel )
REPORTSTATUS ( &status);
return status.statusCode;
}
/**
* Handle user-input and check its validity.
* Load ephemeris and calculate AM-coefficients (stored globally)
*/
void
Initialize (LALStatus *status, struct CommandLineArgsTag *CLA)
{
EphemerisData *edat=NULL; /* Stores earth/sun ephemeris data for barycentering */
BarycenterInput baryinput; /* Stores detector location and other barycentering data */
EarthState earth;
AMCoeffsParams *amParams;
LIGOTimeGPS *midTS=NULL; /* Time stamps for amplitude modulation coefficients */
LALDetector *Detector; /* Our detector*/
INT4 k;
INITSTATUS(status);
ATTATCHSTATUSPTR (status);
if ( LALUserVarWasSet ( &(CLA->nTsft) ) )
CLA->duration = 1.0 * CLA->nTsft * CLA->Tsft;
/* read or generate SFT timestamps */
if ( LALUserVarWasSet(&(CLA->timestamps)) )
{
TRY ( LALReadTimestampsFile (status->statusPtr, ×tamps, CLA->timestamps ), status );
if ( (CLA->nTsft > 0) && ( (UINT4)CLA->nTsft < timestamps->length ) ) /* truncate if required */
timestamps->length = CLA->nTsft;
CLA->nTsft = timestamps->length;
} /* if have_timestamps */
else
{
LIGOTimeGPS tStart;
tStart.gpsSeconds = CLA->gpsStart;
tStart.gpsNanoSeconds = 0;
TRY ( LALMakeTimestamps(status->statusPtr, ×tamps, tStart, CLA->duration, CLA->Tsft ), status );
CLA->nTsft = timestamps->length;
} /* no timestamps */
/*---------- initialize detector ---------- */
{
BOOLEAN have_IFO = LALUserVarWasSet ( &CLA->IFO );
BOOLEAN have_detector = LALUserVarWasSet ( &CLA->detector );
CHAR *IFO;
if ( !have_IFO && !have_detector ) {
fprintf (stderr, "\nNeed to specify the detector (--IFO) !\n\n");
ABORT (status, SEMIANALYTIC_EINPUT, SEMIANALYTIC_MSGEINPUT);
}
if ( have_IFO )
IFO = CLA->IFO;
else
IFO = CLA->detector;
if ( ( Detector = XLALGetSiteInfo ( IFO ) ) == NULL ) {
ABORT (status, SEMIANALYTIC_EINPUT, SEMIANALYTIC_MSGEINPUT);
}
}
/* ---------- load ephemeris-files ---------- */
{
edat = XLALInitBarycenter( CLA->ephemEarth, CLA->ephemSun );
if ( !edat ) {
XLALPrintError("XLALInitBarycenter failed: could not load Earth ephemeris '%s' and Sun ephemeris '%s'\n", CLA->ephemEarth, CLA->ephemSun);
ABORT (status, SEMIANALYTIC_EINPUT, SEMIANALYTIC_MSGEINPUT);
}
} /* ephemeris-reading */
/* ---------- calculate AM-coefficients ---------- */
/* prepare call to barycentering routing */
baryinput.site.location[0] = Detector->location[0]/LAL_C_SI;
baryinput.site.location[1] = Detector->location[1]/LAL_C_SI;
baryinput.site.location[2] = Detector->location[2]/LAL_C_SI;
baryinput.alpha = CLA->Alpha;
baryinput.delta = CLA->Delta;
baryinput.dInv = 0.e0;
/* amParams structure to compute a(t) and b(t) */
/* Allocate space for amParams stucture */
/* Here, amParams->das is the Detector and Source info */
amParams = (AMCoeffsParams *)LALMalloc(sizeof(AMCoeffsParams));
amParams->das = (LALDetAndSource *)LALMalloc(sizeof(LALDetAndSource));
amParams->das->pSource = (LALSource *)LALMalloc(sizeof(LALSource));
/* Fill up AMCoeffsParams structure */
amParams->baryinput = &baryinput;
amParams->earth = &earth;
amParams->edat = edat;
amParams->das->pDetector = Detector;
amParams->das->pSource->equatorialCoords.system = COORDINATESYSTEM_EQUATORIAL;
amParams->das->pSource->equatorialCoords.longitude = CLA->Alpha;
amParams->das->pSource->equatorialCoords.latitude = CLA->Delta;
amParams->das->pSource->orientation = 0.0;
amParams->polAngle = amParams->das->pSource->orientation ; /* These two have to be the same!!!!!!!!!*/
/* Allocate space for AMCoeffs */
amc.a = NULL;
amc.b = NULL;
TRY ( LALSCreateVector(status->statusPtr, &(amc.a), (UINT4) CLA->nTsft), status);
TRY ( LALSCreateVector(status->statusPtr, &(amc.b), (UINT4) CLA->nTsft), status);
/* Mid point of each SFT */
midTS = (LIGOTimeGPS *)LALCalloc(CLA->nTsft,sizeof(LIGOTimeGPS));
for(k=0; k < CLA->nTsft; k++)
{
/* FIXME: loss of precision; consider
midTS[k] = timestamps->data[k];
XLALGPSAdd(&midTS[k], 0.5*CLA->Tsft);
*/
REAL8 teemp=0.0;
teemp = XLALGPSGetREAL8(&(timestamps->data[k]));
teemp += 0.5*CLA->Tsft;
XLALGPSSetREAL8(&(midTS[k]), teemp);
}
TRY ( LALComputeAM(status->statusPtr, &amc, midTS, amParams), status);
/* Free memory */
TRY ( LALDestroyTimestampVector (status->statusPtr, ×tamps), status );
LALFree(midTS);
LALFree(Detector);
XLALDestroyEphemerisData(edat);
LALFree(amParams->das->pSource);
LALFree(amParams->das);
LALFree(amParams);
DETATCHSTATUSPTR (status);
RETURN(status);
} /* ParseUserInput() */
