Exemplo n.º 1
0
void XLALSimInjectNinjaSignals(
  REAL4TimeSeries* chan,
  const char *ifo,
  REAL8 dynRange,
  SimInspiralTable* events
)
{
  /* New REAL8, NINJA-2 code */
  UINT4 j;
  SimInspiralTable *thisInj = NULL;
  
  REAL8TimeSeries *tempStrain = NULL;
  REAL8TimeSeries *tempChan   = NULL;

  /* Make a REAL8 version of the channel data    */
  /* so we can call Jolien's new inject function */
  tempChan = XLALCreateREAL8TimeSeries(
             chan->name,
             &(chan->epoch),
             chan->f0,
             chan->deltaT,
             &(chan->sampleUnits),
             chan->data->length);
  for ( j = 0 ; j < tempChan->data->length ; ++j )
  {
    tempChan->data->data[j] = (REAL8) ( chan->data->data[j] );
  }

  /* loop over injections */
  for ( thisInj = events; thisInj; thisInj = thisInj->next )
  {
    tempStrain = XLALNRInjectionStrain(ifo, thisInj);
    for ( j = 0 ; j < tempStrain->data->length ; ++j )
    {
      tempStrain->data->data[j] *= dynRange;
    }

    XLALSimAddInjectionREAL8TimeSeries( tempChan, tempStrain, NULL);
    XLALDestroyREAL8TimeSeries(tempStrain);
  } /* loop over injections */

  /* Back to REAL4 */
  for ( j = 0 ; j < tempChan->data->length ; ++j )
  {
    chan->data->data[j] = (REAL4) ( tempChan->data->data[j] );
  }

  XLALDestroyREAL8TimeSeries(tempChan);
}
Exemplo n.º 2
0
/**
 * Main function for injecting numetrical relativity waveforms.
 * Takes as input a list of injections, and adds h(t) to a given
 * timeseries for a specified ifo and a dynamic range factor.
 */
void InjectNumRelWaveformsREAL8 (LALStatus      *status,       /**< pointer to LALStatus structure */
                            REAL8TimeSeries     *chan,         /**< [out] the output time series */
                            SimInspiralTable    *injections,   /**< [in] list of injections */
                            CHAR                ifo[3],        /**< [in] 2 char code for interferometer */
                            REAL8               freqLowCutoff, /**< [in] Lower cutoff frequency */
                            REAL8               snrLow,        /**< [in] lower cutoff value of snr */
                            REAL8               snrHigh,       /**< TO BE DOCUMENTED */
                            CHAR                *fname)       /**< [in] higher cutoff value of snr */
{
  SimInspiralTable *thisInj = NULL;
  REAL8 startFreq, startFreqHz, massTotal;
  REAL8 thisSNR;
  SimInspiralTable *simTableOut=NULL;
  SimInspiralTable *thisInjOut=NULL;

  INITSTATUS(status);
  ATTATCHSTATUSPTR (status);
  ASSERT( chan, status, INSPIRALH_ENULL, INSPIRALH_MSGENULL );
  ASSERT( ifo, status, INSPIRALH_ENULL, INSPIRALH_MSGENULL );


  /* loop over injections */
  for ( thisInj = injections; thisInj; thisInj = thisInj->next )
    {

      startFreq = start_freq_from_frame_url(thisInj->numrel_data);
      massTotal = (thisInj->mass1 + thisInj->mass2) * LAL_MTSUN_SI;
      startFreqHz = startFreq / ( LAL_TWOPI * massTotal);

      if (startFreqHz < freqLowCutoff)
        {
          REAL8TimeSeries *strain = NULL;
          strain  = XLALNRInjectionStrain(ifo, thisInj);
          thisSNR = calculate_ligo_snr_from_strain_real8(strain, ifo);

           /* set channel name */
           snprintf( chan->name, LALNameLength * sizeof( CHAR ),
                    "%s:STRAIN", ifo );

          if ((thisSNR < snrHigh) && (thisSNR > snrLow))
            {
              /* simTableOut will be null only the first time */
              if ( simTableOut == NULL) {
                simTableOut = (SimInspiralTable *)LALCalloc( 1, sizeof(SimInspiralTable) );
                memcpy(simTableOut, thisInj, sizeof(*thisInj));
                simTableOut->next = NULL;
                thisInjOut = simTableOut;
              }
              else {
                thisInjOut->next = (SimInspiralTable *)LALCalloc( 1, sizeof(SimInspiralTable) );
                memcpy(thisInjOut->next, thisInj, sizeof(*thisInj));
                thisInjOut->next->next = NULL;
                thisInjOut = thisInjOut->next;
              }

              XLALSimAddInjectionREAL8TimeSeries( chan, strain, NULL);
            }

          XLALDestroyREAL8TimeSeries (strain);
        }
    } /* loop over injectionsj */


  /* write and free the output simInspiral table */
  if ( simTableOut ) {

    LIGOLwXMLStream xmlfp;
    MetadataTable dummyTable;
    dummyTable.simInspiralTable = simTableOut;

    /* write the xml table of actual injections */
    memset( &xmlfp, 0, sizeof(LIGOLwXMLStream) );
    TRY( LALOpenLIGOLwXMLFile( status->statusPtr, &xmlfp, fname ), status );
    TRY( LALBeginLIGOLwXMLTable( status->statusPtr, &xmlfp, sim_inspiral_table ),
              status );

    TRY( LALWriteLIGOLwXMLTable( status->statusPtr, &xmlfp, dummyTable,
                                      sim_inspiral_table ), status );

    TRY( LALEndLIGOLwXMLTable ( status->statusPtr, &xmlfp ), status );
    TRY( LALCloseLIGOLwXMLFile ( status->statusPtr, &xmlfp ), status );

  }

  while (simTableOut) {
    thisInjOut = simTableOut;
    simTableOut = simTableOut->next;
    LALFree(thisInjOut);
  }

  DETATCHSTATUSPTR(status);
  RETURN(status);

}
Exemplo n.º 3
0
REAL8 calculate_lalsim_snr(SimInspiralTable *inj, char *IFOname, REAL8FrequencySeries *psd, REAL8 start_freq)
{
  /* Calculate and return the single IFO SNR
   *
   * Required options:
   *
   * inj:     SimInspiralTable entry for which the SNR has to be calculated
   * IFOname: The canonical name (e.g. H1, L1, V1) name of the IFO for which the SNR must be calculated
   * PSD:     PSD curve to be used for the overlap integrap
   * start_freq: lower cutoff of the overlap integral
   *
   * */

  int ret=0;
  INT4 errnum=0;
  UINT4 j=0;
  /* Fill detector site info */
  LALDetector*  detector=NULL;
  detector=calloc(1,sizeof(LALDetector));
  if(!strcmp(IFOname,"H1"))
    memcpy(detector,&lalCachedDetectors[LALDetectorIndexLHODIFF],sizeof(LALDetector));
  if(!strcmp(IFOname,"H2"))
    memcpy(detector,&lalCachedDetectors[LALDetectorIndexLHODIFF],sizeof(LALDetector));
  if(!strcmp(IFOname,"LLO")||!strcmp(IFOname,"L1"))
    memcpy(detector,&lalCachedDetectors[LALDetectorIndexLLODIFF],sizeof(LALDetector));
  if(!strcmp(IFOname,"V1")||!strcmp(IFOname,"VIRGO"))
    memcpy(detector,&lalCachedDetectors[LALDetectorIndexVIRGODIFF],sizeof(LALDetector));

  Approximant approx=TaylorF2;
  approx=XLALGetApproximantFromString(inj->waveform);
  LALSimulationDomain modelDomain;

  if(XLALSimInspiralImplementedFDApproximants(approx)) modelDomain = LAL_SIM_DOMAIN_FREQUENCY;
  else if(XLALSimInspiralImplementedTDApproximants(approx)) modelDomain = LAL_SIM_DOMAIN_TIME;
  else
  {
      fprintf(stderr,"ERROR. Unknown approximant number %i. Unable to choose time or frequency domain model.",approx);
      exit(1);
  }

  REAL8 m1,m2, s1x,s1y,s1z,s2x,s2y,s2z,phi0,f_min,f_max,iota,polarization;

  /* No tidal PN terms until injtable is able to get them */

  LALDict *LALpars= XLALCreateDict();

  /* Spin and tidal interactions at the highest level (default) until injtable stores them.
   * When spinO and tideO are added to injtable we can un-comment those lines and should be ok
   *
  int spinO = inj->spinO;
  int tideO = inj->tideO;
  XLALSimInspiralSetSpinOrder(waveFlags, *(LALSimInspiralSpinOrder*) spinO);
  XLALSimInspiralSetTidalOrder(waveFlags, *(LALSimInspiralTidalOrder*) tideO);
  */

  XLALSimInspiralWaveformParamsInsertPNPhaseOrder(LALpars,XLALGetOrderFromString(inj->waveform));
  XLALSimInspiralWaveformParamsInsertPNAmplitudeOrder(LALpars,inj->amp_order);
  /* Read parameters */
  m1=inj->mass1*LAL_MSUN_SI;
  m2=inj->mass2*LAL_MSUN_SI;
  s1x=inj->spin1x;
  s1y=inj->spin1y;
  s1z=inj->spin1z;
  s2x=inj->spin2x;
  s2y=inj->spin2y;
  s2z=inj->spin2z;
  iota=inj->inclination;
  f_min=XLALSimInspiralfLow2fStart(inj->f_lower,XLALSimInspiralWaveformParamsLookupPNAmplitudeOrder(LALpars),XLALGetApproximantFromString(inj->waveform));
  phi0=inj->coa_phase;
  polarization=inj->polarization;
  REAL8 latitude=inj->latitude;
  REAL8 longitude=inj->longitude;

  LIGOTimeGPS epoch;
  memcpy(&epoch,&(inj->geocent_end_time),sizeof(LIGOTimeGPS));

  /* Hardcoded values of srate and segment length. If changed here they must also be changed in inspinj.c */
  REAL8 srate=4096.0;
  const CHAR *WF=inj->waveform;
  /* Increase srate for EOB WFs */
  if (strstr(WF,"EOB"))
    srate=8192.0;
  REAL8 segment=64.0;

  f_max=(srate/2.0-(1.0/segment));
  size_t seglen=(size_t) segment*srate;
  REAL8 deltaF=1.0/segment;
  REAL8 deltaT=1.0/srate;

  /* Frequency domain h+ and hx. They are going to be filled either by a FD WF or by the FFT of a TD WF*/
  COMPLEX16FrequencySeries *freqHplus;
  COMPLEX16FrequencySeries *freqHcross;
  freqHplus=  XLALCreateCOMPLEX16FrequencySeries("fhplus",
    &epoch,
    0.0,
    deltaF,
    &lalDimensionlessUnit,
    seglen/2+1
  );

  freqHcross=XLALCreateCOMPLEX16FrequencySeries("fhcross",
    &epoch,
    0.0,
    deltaF,
    &lalDimensionlessUnit,
    seglen/2+1
  );

  /* If the approximant is on the FD call XLALSimInspiralChooseFDWaveform */
  if (modelDomain == LAL_SIM_DOMAIN_FREQUENCY)
  {

    COMPLEX16FrequencySeries *hptilde=NULL;
    COMPLEX16FrequencySeries *hctilde=NULL;
    //We do not pass the polarization here, we assume it is taken into account when projecting h+,x onto the detector.
    XLAL_TRY(ret=XLALSimInspiralChooseFDWaveform(&hptilde,&hctilde, m1, m2,
						 s1x, s1y, s1z, s2x, s2y, s2z,
						 LAL_PC_SI * 1.0e6, iota, phi0, 0., 0., 0.,
						 deltaF, f_min, 0.0, 0.0,
						 LALpars,approx),errnum);
    XLALDestroyDict(LALpars);

    if(!hptilde|| hptilde->data==NULL || hptilde->data->data==NULL ||!hctilde|| hctilde->data==NULL || hctilde->data->data==NULL)
    {
      XLALPrintError(" ERROR in XLALSimInspiralChooseFDWaveform(): error generating waveform. errnum=%d. Exiting...\n",errnum );
      exit(1);
    }

    COMPLEX16 *dataPtr = hptilde->data->data;
    for (j=0; j<(UINT4) freqHplus->data->length; ++j)
    {
      if(j < hptilde->data->length)
      {
        freqHplus->data->data[j] = dataPtr[j];
      }
      else
      {
        freqHplus->data->data[j]=0.0 + I*0.0;
      }
    }
    dataPtr = hctilde->data->data;
    for (j=0; j<(UINT4) freqHplus->data->length; ++j)
    {
      if(j < hctilde->data->length)
      {
        freqHcross->data->data[j] = dataPtr[j];
      }
      else
      {
        freqHcross->data->data[j]=0.0+0.0*I;
      }
    }
    /* Clean */
    if(hptilde) XLALDestroyCOMPLEX16FrequencySeries(hptilde);
    if(hctilde) XLALDestroyCOMPLEX16FrequencySeries(hctilde);

  }
  else
  {

    /* Otherwise use XLALSimInspiralChooseTDWaveform */
    REAL8FFTPlan *timeToFreqFFTPlan = XLALCreateForwardREAL8FFTPlan((UINT4) seglen, 0 );
    REAL8TimeSeries *hplus=NULL;
    REAL8TimeSeries *hcross=NULL;
    REAL8TimeSeries *timeHplus=NULL;
    REAL8TimeSeries *timeHcross=NULL;
    REAL8 padding =0.4;//seconds
    REAL8Window *window=XLALCreateTukeyREAL8Window(seglen,(REAL8)2.0*padding*srate/(REAL8)seglen);
    REAL4 WinNorm = sqrt(window->sumofsquares/window->data->length);
    timeHcross=XLALCreateREAL8TimeSeries("timeModelhCross",
      &epoch,
      0.0,
      deltaT,
      &lalStrainUnit,
      seglen
    );
    timeHplus=XLALCreateREAL8TimeSeries("timeModelhplus",
      &epoch,
      0.0,
      deltaT,
      &lalStrainUnit,
      seglen
    );
    for (j=0;j<(UINT4) timeHcross->data->length;++j)
      timeHcross->data->data[j]=0.0;
    for (j=0;j<(UINT4) timeHplus->data->length;++j)
      timeHplus->data->data[j]=0.0;
    XLAL_TRY(ret=XLALSimInspiralChooseTDWaveform(&hplus, &hcross, m1, m2,
						 s1x, s1y, s1z, s2x, s2y, s2z,
						 LAL_PC_SI*1.0e6, iota,
						 phi0, 0., 0., 0., deltaT, f_min, 0.,
						 LALpars, approx),
        errnum);

    if (ret == XLAL_FAILURE || hplus == NULL || hcross == NULL)
    {
      XLALPrintError(" ERROR in XLALSimInspiralChooseTDWaveform(): error generating waveform. errnum=%d. Exiting...\n",errnum );
      exit(1);
    }

    hplus->epoch  = timeHplus->epoch;
    hcross->epoch = timeHcross->epoch;

    XLALSimAddInjectionREAL8TimeSeries(timeHplus, hplus, NULL);
    XLALSimAddInjectionREAL8TimeSeries(timeHcross, hcross, NULL);
    for (j=0; j<(UINT4) timeHplus->data->length; ++j)
      timeHplus->data->data[j]*=window->data->data[j];
    for (j=0; j<(UINT4) timeHcross->data->length; ++j)
      timeHcross->data->data[j]*=window->data->data[j];
      
    for (j=0; j<(UINT4) freqHplus->data->length; ++j)
    {
      freqHplus->data->data[j]=0.0+I*0.0;
      freqHcross->data->data[j]=0.0+I*0.0;
    }

    /* FFT into freqHplus and freqHcross */
    XLALREAL8TimeFreqFFT(freqHplus,timeHplus,timeToFreqFFTPlan);
    XLALREAL8TimeFreqFFT(freqHcross,timeHcross,timeToFreqFFTPlan);
    for (j=0; j<(UINT4) freqHplus->data->length; ++j)
    {
      freqHplus->data->data[j]/=WinNorm;
      freqHcross->data->data[j]/=WinNorm;
    }
    /* Clean... */
    if ( hplus ) XLALDestroyREAL8TimeSeries(hplus);
    if ( hcross ) XLALDestroyREAL8TimeSeries(hcross);
    if ( timeHplus ) XLALDestroyREAL8TimeSeries(timeHplus);
    if ( timeHcross ) XLALDestroyREAL8TimeSeries(timeHcross);
    if (timeToFreqFFTPlan) LALFree(timeToFreqFFTPlan);
    if (window) XLALDestroyREAL8Window(window);
  }

  /* The WF has been generated and is in freqHplus/cross. Now project into the IFO frame */
  double Fplus, Fcross;
  double FplusScaled, FcrossScaled;
  double HSquared;
  double GPSdouble=(REAL8) inj->geocent_end_time.gpsSeconds+ (REAL8) inj->geocent_end_time.gpsNanoSeconds*1.0e-9;
  double gmst;
  LIGOTimeGPS GPSlal;
  XLALGPSSetREAL8(&GPSlal, GPSdouble);
  gmst=XLALGreenwichMeanSiderealTime(&GPSlal);

  /* Fill Fplus and Fcross*/
  XLALComputeDetAMResponse(&Fplus, &Fcross, (const REAL4 (*)[3])detector->response,longitude, latitude, polarization, gmst);
  /* And take the distance into account */
  FplusScaled  = Fplus  / (inj->distance);
  FcrossScaled = Fcross / (inj->distance);

  REAL8 timedelay = XLALTimeDelayFromEarthCenter(detector->location,longitude, latitude, &GPSlal);
  REAL8 timeshift =  timedelay;
  REAL8 twopit    = LAL_TWOPI * timeshift;

  UINT4 lower = (UINT4)ceil(start_freq / deltaF);
  UINT4 upper = (UINT4)floor(f_max / deltaF);
  REAL8 re = cos(twopit*deltaF*lower);
  REAL8 im = -sin(twopit*deltaF*lower);

  /* Incremental values, using cos(theta) - 1 = -2*sin(theta/2)^2 */
  REAL8 dim = -sin(twopit*deltaF);
  REAL8 dre = -2.0*sin(0.5*twopit*deltaF)*sin(0.5*twopit*deltaF);
  REAL8 TwoDeltaToverN = 2.0 *deltaT / ((double) seglen);

  REAL8 plainTemplateReal,  plainTemplateImag,templateReal,templateImag;
  REAL8 newRe, newIm,temp;
  REAL8 this_snr=0.0;
  if ( psd )
  {
    psd = XLALInterpolatePSD(psd,  deltaF);
  } 
  for (j=lower; j<=(UINT4) upper; ++j)
  {
    /* derive template (involving location/orientation parameters) from given plus/cross waveforms: */
    plainTemplateReal = FplusScaled * creal(freqHplus->data->data[j])
                        +  FcrossScaled *creal(freqHcross->data->data[j]);
    plainTemplateImag = FplusScaled * cimag(freqHplus->data->data[j])
                        +  FcrossScaled * cimag(freqHcross->data->data[j]);

    /* do time-shifting...             */
    /* (also un-do 1/deltaT scaling): */
    templateReal = (plainTemplateReal*re - plainTemplateImag*im) / deltaT;
    templateImag = (plainTemplateReal*im + plainTemplateImag*re) / deltaT;
    HSquared  = templateReal*templateReal + templateImag*templateImag ;
    temp = ((TwoDeltaToverN * HSquared) / psd->data->data[j]);
    this_snr  += temp;
    /* Now update re and im for the next iteration. */
    newRe = re + re*dre - im*dim;
    newIm = im + re*dim + im*dre;

    re = newRe;
    im = newIm;
  }

  /* Clean */
  if (freqHcross) XLALDestroyCOMPLEX16FrequencySeries(freqHcross);
  if (freqHplus) XLALDestroyCOMPLEX16FrequencySeries(freqHplus);
  if (detector) free(detector);

  return sqrt(this_snr*2.0);

}
Exemplo n.º 4
0
/**
 * Main function for injecting numetrical relativity waveforms.
 * Takes as input a list of injections, and adds h(t) to a given
 * timeseries for a specified ifo and a dynamic range factor.
 * Updated/generalized version of InjectNumRelWaveforms that allows
 * arbitrary LIGO and Virgo PSDs and integration starting frequencies
 */
void InjectNumRelWaveformsUsingPSDREAL8(LALStatus *status,         /**< pointer to LALStatus structure */
                            REAL8TimeSeries      *chan,         /**< [out] the output time series */
                            SimInspiralTable     *injections,   /**< [in] list of injections */
                            CHAR                 ifo[3],        /**< [in] 2 char code for interferometer */
                            REAL8                freqLowCutoff, /**< [in] Lower cutoff frequency */
                            REAL8                snrLow,        /**< [in] lower cutoff value of snr */
                            REAL8                snrHigh,       /**< TO BE DOCUMENTED */
                            REAL8FrequencySeries *ligoPSD,        /**< [in] PSD to use for LIGO SNRs.  If NULL, use initial PSD */
                            REAL8                ligoSnrLowFreq,  /**< [in] Frequency at which to start integration for LIGO SNRs */
                            REAL8FrequencySeries *virgoPSD,       /**< [in] PSD to use for Virgo SNRs.  If NULL, use initial PSD */
                            REAL8                virgoSnrLowFreq, /**< [in] Frequency at which to start integration for Virgo SNRs */
                            CHAR                 *fname)       /**< [in] higher cutoff value of snr */
{
  SimInspiralTable *thisInj = NULL;
  REAL8 startFreq, startFreqHz, massTotal;
  REAL8 thisSNR;
  SimInspiralTable *simTableOut=NULL;
  SimInspiralTable *thisInjOut=NULL;

  INITSTATUS(status);
  ATTATCHSTATUSPTR (status);
  ASSERT( chan, status, INSPIRALH_ENULL, INSPIRALH_MSGENULL );
  ASSERT( ifo, status, INSPIRALH_ENULL, INSPIRALH_MSGENULL );


  /* loop over injections */
  for ( thisInj = injections; thisInj; thisInj = thisInj->next )
    {

      startFreq = start_freq_from_frame_url(thisInj->numrel_data);
      massTotal = (thisInj->mass1 + thisInj->mass2) * LAL_MTSUN_SI;
      startFreqHz = startFreq / ( LAL_TWOPI * massTotal);

      if (startFreqHz < freqLowCutoff)
        {
          REAL8TimeSeries *strain = NULL;
          strain  = XLALNRInjectionStrain(ifo, thisInj);

          if (ifo[0] == 'V')
            thisSNR = calculate_snr_from_strain_and_psd_real8( strain, virgoPSD, virgoSnrLowFreq, ifo );
          else
            thisSNR = calculate_snr_from_strain_and_psd_real8( strain, ligoPSD, ligoSnrLowFreq, ifo );

           /* set channel name */
           snprintf( chan->name, LALNameLength * sizeof( CHAR ),
                    "%s:STRAIN", ifo );

          printf("Injection at %d.%d in ifo %s has SNR %f\n",
                   thisInj->geocent_end_time.gpsSeconds,
                   thisInj->geocent_end_time.gpsNanoSeconds,
                   ifo,
                   thisSNR);

          if ((thisSNR < snrHigh) && (thisSNR > snrLow))
            {
              /* simTableOut will be null only the first time */
              if ( simTableOut == NULL) {
                simTableOut = (SimInspiralTable *)LALCalloc( 1, sizeof(SimInspiralTable) );
                memcpy(simTableOut, thisInj, sizeof(*thisInj));
                simTableOut->next = NULL;
                thisInjOut = simTableOut;
              }
              else {
                thisInjOut->next = (SimInspiralTable *)LALCalloc( 1, sizeof(SimInspiralTable) );
                memcpy(thisInjOut->next, thisInj, sizeof(*thisInj));
                thisInjOut->next->next = NULL;
                thisInjOut = thisInjOut->next;
              }

              XLALSimAddInjectionREAL8TimeSeries( chan, strain, NULL);
            }

          XLALDestroyREAL8TimeSeries (strain);
        }
      else
        {
           fprintf( stderr, "Skipping injection at %d because it turns on at %f Hz, "
                            "but the low frequency cutoff is %f\n",
                            thisInj->geocent_end_time.gpsSeconds, startFreqHz, freqLowCutoff);
        }
    } /* loop over injectionsj */


  /* write and free the output simInspiral table */
  if ( simTableOut ) {

    LIGOLwXMLStream xmlfp;
    MetadataTable dummyTable;
    dummyTable.simInspiralTable = simTableOut;

    /* write the xml table of actual injections */
    if (fname) {
      memset( &xmlfp, 0, sizeof(LIGOLwXMLStream) );
      TRY( LALOpenLIGOLwXMLFile( status->statusPtr, &xmlfp, fname ), status );
      TRY( LALBeginLIGOLwXMLTable( status->statusPtr, &xmlfp, sim_inspiral_table ),
                status );

      TRY( LALWriteLIGOLwXMLTable( status->statusPtr, &xmlfp, dummyTable,
                                        sim_inspiral_table ), status );

      TRY( LALEndLIGOLwXMLTable ( status->statusPtr, &xmlfp ), status );
      TRY( LALCloseLIGOLwXMLFile ( status->statusPtr, &xmlfp ), status );
    }
  }

  while (simTableOut) {
    thisInjOut = simTableOut;
    simTableOut = simTableOut->next;
    LALFree(thisInjOut);
  }

  DETATCHSTATUSPTR(status);
  RETURN(status);

}
Exemplo n.º 5
0
/**
 * Wrapper to iterate over the entries in a sim_burst linked list and
 * inject them into a time series.  Passing NULL for the response disables
 * it (input time series is strain).
 */
int XLALBurstInjectSignals(
	REAL8TimeSeries *series,
	const SimBurst *sim_burst,
	const TimeSlide *time_slide_table_head,
	const COMPLEX16FrequencySeries *response
)
{
	/* to be deduced from the time series' channel name */
	const LALDetector *detector;
	/* FIXME:  fix the const entanglement so as to get rid of this */
	LALDetector detector_copy;
	/* + and x time series for injection waveform */
	REAL8TimeSeries *hplus = NULL;
	REAL8TimeSeries *hcross = NULL;
	/* injection time series as added to detector's */
	REAL8TimeSeries *h;
	/* skip injections whose geocentre times are more than this many
	 * seconds outside of the target time series */
	const double injection_window = 100.0;

	/* turn the first two characters of the channel name into a
	 * detector */

	detector = XLALDetectorPrefixToLALDetector(series->name);
	if(!detector)
		XLAL_ERROR(XLAL_EFUNC);
	XLALPrintInfo("%s(): channel name is '%s', instrument appears to be '%s'\n", __func__, series->name, detector->frDetector.prefix);
	detector_copy = *detector;

	/* iterate over injections */

	for(; sim_burst; sim_burst = sim_burst->next) {
		LIGOTimeGPS time_geocent_gps;
		const TimeSlide *time_slide_row;

		/* determine the offset to be applied to this injection */

		time_slide_row = XLALTimeSlideConstGetByIDAndInstrument(time_slide_table_head, sim_burst->time_slide_id, detector->frDetector.prefix);
		if(!time_slide_row) {
			XLALPrintError("%s(): cannot find time shift offset for injection 'sim_burst:simulation_id:%ld'.  need 'time_slide:time_slide_id:%ld' for instrument '%s'", __func__, sim_burst->simulation_id, sim_burst->time_slide_id, detector->frDetector.prefix);
			XLAL_ERROR(XLAL_EINVAL);
		}

		/* skip injections whose "times" are too far outside of the
		 * target time series */

		time_geocent_gps = sim_burst->time_geocent_gps;
		XLALGPSAdd(&time_geocent_gps, -time_slide_row->offset);
		if(XLALGPSDiff(&series->epoch, &time_geocent_gps) > injection_window || XLALGPSDiff(&time_geocent_gps, &series->epoch) > (series->data->length * series->deltaT + injection_window))
			continue;
		XLALPrintInfo("%s(): injection 'sim_burst:simulation_id:%ld' in '%s' at %d.%09u s (GPS) will be shifted by %.16g s to %d.%09u s (GPS)\n", __func__, sim_burst->simulation_id, series->name, sim_burst->time_geocent_gps.gpsSeconds, sim_burst->time_geocent_gps.gpsNanoSeconds, -time_slide_row->offset, time_geocent_gps.gpsSeconds, time_geocent_gps.gpsNanoSeconds);

		/* construct the h+ and hx time series for the injection
		 * waveform. */

		if(XLALGenerateSimBurst(&hplus, &hcross, sim_burst, series->deltaT))
			XLAL_ERROR(XLAL_EFUNC);
#if 0
		{
		char name[100];
		FILE *f;
		unsigned i;
		sprintf(name, "%d.%09u_%s.txt", sim_burst->time_geocent_gps.gpsSeconds, sim_burst->time_geocent_gps.gpsNanoSeconds, series->name);
		f = fopen(name, "w");
		for(i = 0; i < hplus->data->length; i++) {
			LIGOTimeGPS t = hplus->epoch;
			XLALGPSAdd(&t, i * hplus->deltaT);
			fprintf(f, "%.16g %.16g %.16g\n", XLALGPSGetREAL8(&t), hplus->data->data[i], hcross->data->data[i]);
		}
		fclose(f);
		}
#endif

		/* project the wave onto the detector to produce the strain
		 * in the detector. */

		h = XLALSimDetectorStrainREAL8TimeSeries(hplus, hcross, sim_burst->ra, sim_burst->dec, sim_burst->psi, &detector_copy);
		XLALDestroyREAL8TimeSeries(hplus);
		XLALDestroyREAL8TimeSeries(hcross);
		hplus = hcross = NULL;
		if(!h)
			XLAL_ERROR(XLAL_EFUNC);

		/* shift the waveform by the time slide offset */

		XLALGPSAdd(&h->epoch, -time_slide_row->offset);
#if 0
		{
		char name[100];
		FILE *f;
		unsigned i;
		sprintf(name, "%d.%09u_%s.txt", sim_burst->time_geocent_gps.gpsSeconds, sim_burst->time_geocent_gps.gpsNanoSeconds, series->name);
		f = fopen(name, "w");
		for(i = 0; i < h->data->length; i++) {
			LIGOTimeGPS t = h->epoch;
			XLALGPSAdd(&t, i * h->deltaT);
			fprintf(f, "%d.%09u %.16g\n", t.gpsSeconds, t.gpsNanoSeconds, h->data->data[i]);
		}
		fclose(f);
		}
#endif

		/* add the injection strain time series to the detector
		 * data */

		if(XLALSimAddInjectionREAL8TimeSeries(series, h, response)) {
			XLALDestroyREAL8TimeSeries(h);
			XLAL_ERROR(XLAL_EFUNC);
		}
		XLALDestroyREAL8TimeSeries(h);
	}

	/* done */

	return 0;
}