calc_misfit.c 5.71 KB
Newer Older
Tilman Steinweg's avatar
Tilman Steinweg committed
1
/*-----------------------------------------------------------------------------------------
Florian Wittkamp's avatar
Florian Wittkamp committed
2
 * Copyright (C) 2016  For the list of authors, see file AUTHORS.
Tilman Steinweg's avatar
Tilman Steinweg committed
3
 *
Florian Wittkamp's avatar
Florian Wittkamp committed
4
 * This file is part of IFOS.
Tilman Steinweg's avatar
Tilman Steinweg committed
5
 * 
Florian Wittkamp's avatar
Florian Wittkamp committed
6
 * IFOS is free software: you can redistribute it and/or modify
Tilman Steinweg's avatar
Tilman Steinweg committed
7 8 9
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, version 2.0 of the License only.
 * 
Florian Wittkamp's avatar
Florian Wittkamp committed
10
 * IFOS is distributed in the hope that it will be useful,
Tilman Steinweg's avatar
Tilman Steinweg committed
11 12 13 14 15
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
Florian Wittkamp's avatar
Florian Wittkamp committed
16
 * along with IFOS. See file COPYING and/or <http://www.gnu.org/licenses/gpl-2.0.html>.
Tilman Steinweg's avatar
Tilman Steinweg committed
17 18 19 20 21 22 23 24 25 26 27 28
-----------------------------------------------------------------------------------------*/

/*------------------------------------------------------------------------
 *   Calculate Misfit                                  
 *   last update 18/04/11, L. Rehor
 *  ----------------------------------------------------------------------*/
#include "fd.h"

double calc_misfit(float **sectiondata, float **section, int ntr, int ns, int LNORM, float L2, int itest, int sws, int swstestshot,int ntr_glob, int **recpos_loc, int nsrc_glob, int ishot, int iter){

/* declaration of variables */
extern float DT;
29
extern int MYID, USE_WORKFLOW, WORKFLOW_STAGE;
Tilman Steinweg's avatar
Tilman Steinweg committed
30 31 32 33 34 35 36 37
extern int TRKILL, NORMALIZE, FC, TIMEWIN;
extern char TRKILL_FILE[STRING_SIZE];
extern int VELOCITY;
int i,j;
float l2;
int umax=0, h;
float abs_section, abs_sectiondata;
float intseis_s, intseis_sd;
38
float *picked_times=NULL;
Tilman Steinweg's avatar
Tilman Steinweg committed
39 40 41 42 43 44 45 46
float **intseis_section=NULL, **intseis_sectiondata=NULL;
float **intseis_sectiondata_envelope=NULL, **intseis_section_envelope=NULL;
if(LNORM==8){
	intseis_section_envelope = matrix(1,ntr,1,ns);
	intseis_sectiondata_envelope = matrix(1,ntr,1,ns);	
	}
intseis_section = matrix(1,ntr,1,ns);  /* declaration of variables for integration */
intseis_sectiondata = matrix(1,ntr,1,ns);
47
if(TIMEWIN) picked_times = vector(1,ntr); /* declaration of variables for TIMEWIN */
Tilman Steinweg's avatar
Tilman Steinweg committed
48 49 50 51 52 53 54 55 56

/* TRACE KILLING */
int ** kill_tmp, *kill_vector;	/* declaration of variables for trace killing */
char trace_kill_file[STRING_SIZE];	
FILE *ftracekill;

if(TRKILL){
	kill_tmp = imatrix(1,ntr_glob,1,nsrc_glob);
	kill_vector = ivector(1,ntr);
57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
    
    if(USE_WORKFLOW){
        sprintf(trace_kill_file,"%s_%i.dat",TRKILL_FILE,WORKFLOW_STAGE);
        ftracekill=fopen(trace_kill_file,"r");
        if (ftracekill==NULL){
            sprintf(trace_kill_file,"%s.dat",TRKILL_FILE);
            ftracekill=fopen(trace_kill_file,"r");
            if (ftracekill==NULL){
                err(" Trace kill file could not be opened!");
            }
        }
    }else{
        sprintf(trace_kill_file,"%s.dat",TRKILL_FILE);
        ftracekill=fopen(trace_kill_file,"r");
        if (ftracekill==NULL){
            err(" Trace kill file could not be opened!");
        }
    }
    
Tilman Steinweg's avatar
Tilman Steinweg committed
76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114
	for(i=1;i<=ntr_glob;i++){
		for(j=1;j<=nsrc_glob;j++){
			fscanf(ftracekill,"%d",&kill_tmp[i][j]);
		}
	}

	fclose(ftracekill);

	h=1;
	for(i=1;i<=ntr;i++){
	   kill_vector[h] = kill_tmp[recpos_loc[3][i]][ishot];
	   h++;
	}
} /* end if(TRKILL)*/

/* Integration of measured and synthetic data  */
for(i=1;i<=ntr;i++){

	intseis_s=0;
	intseis_sd=0;
	if (VELOCITY==0){	/* only integtration if displacement seismograms are inverted */
      		for(j=1;j<=ns;j++){
			intseis_s += section[i][j];
			intseis_section[i][j]=intseis_s*DT;
			intseis_sd += sectiondata[i][j];
			intseis_sectiondata[i][j]=intseis_sd*DT;
		}
	}
	else{
		for(j=1;j<=ns;j++){
			intseis_section[i][j]=section[i][j];
			intseis_sectiondata[i][j]=sectiondata[i][j];
		}
	}
	
}

/* TIME WINDOWING */
if(TIMEWIN==1){
115 116
time_window(intseis_section, iter, ntr_glob,recpos_loc, ntr, ns, ishot);
time_window(intseis_sectiondata, iter, ntr_glob,recpos_loc, ntr, ns, ishot);
Tilman Steinweg's avatar
Tilman Steinweg committed
117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174
}

/* NORMALIZE TRACES */
if(NORMALIZE==1){
normalize_data(intseis_section,ntr,ns);
normalize_data(intseis_sectiondata,ntr,ns);
}

/* calculate envelope for LNORM==8 */
if (LNORM==8){
calc_envelope(intseis_sectiondata,intseis_sectiondata_envelope,ns,ntr);
calc_envelope(intseis_section,intseis_section_envelope,ns,ntr);	
}
/* end of calculate envelope for LNORM==8 */

/* calculate kind of "energy" */

for(i=1;i<=ntr;i++){	
	
    	if((TRKILL==1)&&(kill_vector[i]==1))
    	continue;	
    
	if ((LNORM==5) || (LNORM==7)){
    		abs_sectiondata=0.0;
		abs_section=0.0;
	
		for(j=1;j<=ns;j++){
			abs_sectiondata+=intseis_sectiondata[i][j]*intseis_sectiondata[i][j];
			abs_section+=intseis_section[i][j]*intseis_section[i][j];
		}
		abs_sectiondata=sqrt(abs_sectiondata);
		abs_section=sqrt(abs_section);
	}
	
	/* calculate L2 residuals */
      	
	for(j=1;j<=ns;j++){

		if(LNORM==2){
		L2 += (intseis_section[i][j]-intseis_sectiondata[i][j]) * (intseis_section[i][j]-intseis_sectiondata[i][j]);}

		if((LNORM==5) || (LNORM==7)){
		L2 -= (intseis_sectiondata[i][j]*intseis_section[i][j]) / (abs_sectiondata*abs_section);}
		
		if(LNORM==8){
		L2 += (intseis_section_envelope[i][j]-intseis_sectiondata_envelope[i][j]) * (intseis_section_envelope[i][j]-intseis_sectiondata_envelope[i][j]);}
				                  
	}
}

l2=L2;

/*  printf("\n MYID = %i   IN CALC_MISFIT: L2 = %10.12f \n",MYID,l2); */

/* free memory for integrated seismograms */
free_matrix(intseis_section,1,ntr,1,ns);
free_matrix(intseis_sectiondata,1,ntr,1,ns);

175 176
/* free memory for time windowing and trace killing */
if(TIMEWIN==1) free_vector(picked_times,1,ntr);
Tilman Steinweg's avatar
Tilman Steinweg committed
177 178 179 180 181 182 183 184 185
if(TRKILL==1){
free_imatrix(kill_tmp,1,ntr_glob,1,nsrc_glob);
free_ivector(kill_vector,1,ntr);}
if(LNORM==8){
	free_matrix(intseis_sectiondata_envelope,1,ntr,1,ns);
	free_matrix(intseis_section_envelope,1,ntr,1,ns);
	}
return l2;
} /* end of function */