calc_misfit.c 7.47 KB
Newer Older
tilman.metz's avatar
tilman.metz committed
1
/*-----------------------------------------------------------------------------------------
2
 * Copyright (C) 2016  For the list of authors, see file AUTHORS.
tilman.metz's avatar
tilman.metz committed
3
 *
Florian Wittkamp's avatar
Florian Wittkamp committed
4
 * This file is part of IFOS.
5
 *
Florian Wittkamp's avatar
Florian Wittkamp committed
6
 * IFOS is free software: you can redistribute it and/or modify
tilman.metz's avatar
tilman.metz committed
7 8
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, version 2.0 of the License only.
9
 *
Florian Wittkamp's avatar
Florian Wittkamp committed
10
 * IFOS is distributed in the hope that it will be useful,
tilman.metz's avatar
tilman.metz committed
11 12 13
 * 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.
14
 *
tilman.metz's avatar
tilman.metz committed
15
 * 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>.
17
 -----------------------------------------------------------------------------------------*/
tilman.metz's avatar
tilman.metz committed
18 19

/*------------------------------------------------------------------------
20
 *   Calculate Misfit
tilman.metz's avatar
tilman.metz committed
21 22 23
 *  ----------------------------------------------------------------------*/
#include "fd.h"

24
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, float ** srcpos, int ** recpos){
25
    
26 27 28 29 30 31 32 33 34
    /* declaration of variables */
    extern float DT;
    extern int MYID, USE_WORKFLOW, WORKFLOW_STAGE;
    extern int TRKILL, NORMALIZE, FC, TIMEWIN;
    extern char TRKILL_FILE[STRING_SIZE];
    extern int VELOCITY;
    
    int i,j;
    float l2;
35 36
    int h;
    float abs_section = 0.0, abs_sectiondata = 0.0;
37 38 39 40 41 42 43 44 45 46 47 48 49
    float intseis_s, intseis_sd;
    float *picked_times=NULL;
    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);
    if(TIMEWIN) picked_times = vector(1,ntr); /* declaration of variables for TIMEWIN */
    
    /* TRACE KILLING */
50
    int ** kill_tmp = NULL, *kill_vector = NULL;	/* declaration of variables for trace killing */
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83
    char trace_kill_file[STRING_SIZE];
    FILE *ftracekill;
    extern int TRKILL_OFFSET;
    extern float TRKILL_OFFSET_LOWER;
    extern float TRKILL_OFFSET_UPPER;
    
    /*-----------------*/
    /* Start Tracekill */
    /*-----------------*/
    if(TRKILL){
        kill_tmp = imatrix(1,ntr_glob,1,nsrc_glob);
        kill_vector = ivector(1,ntr);
        
        if(TRKILL_OFFSET) {
            
            if(MYID==0) {
                printf("Automatic offset based TraceKill: Experimental feature");
            }
            
            /* Generate TraceKill file on the fly */
            create_trkill_table(kill_tmp,ntr_glob,recpos,nsrc_glob,srcpos,ishot,TRKILL_OFFSET_LOWER,TRKILL_OFFSET_UPPER);
            
        } else {

            /* READ TraceKill file from disk */
            
            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){
84
                        declare_error(" Trace kill file could not be opened!");
85 86 87 88 89 90
                    }
                }
            }else{
                sprintf(trace_kill_file,"%s.dat",TRKILL_FILE);
                ftracekill=fopen(trace_kill_file,"r");
                if (ftracekill==NULL){
91
                    declare_error(" Trace kill file could not be opened!");
92 93 94 95 96 97 98
                }
            }
            
            for(i=1;i<=ntr_glob;i++){
                for(j=1;j<=nsrc_glob;j++){
                    fscanf(ftracekill,"%d",&kill_tmp[i][j]);
                }
99
            }
100 101 102
            
            fclose(ftracekill);
            
103
        }
104 105 106 107 108 109
        
        /* Generate local kill vector */
        h=1;
        for(i=1;i<=ntr;i++){
            kill_vector[h] = kill_tmp[recpos_loc[3][i]][ishot];
            h++;
110 111
        }
    }
112 113 114
    /*---------------*/
    /* End Tracekill */
    /*---------------*/
115
    
116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136
    /* 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];
            }
        }
        
    }
tilman.metz's avatar
tilman.metz committed
137
    
138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209
    /* TIME WINDOWING */
    if(TIMEWIN==1){
        time_window(intseis_section, iter, ntr_glob,recpos_loc, ntr, ns, ishot);
        time_window(intseis_sectiondata, iter, ntr_glob,recpos_loc, ntr, ns, ishot);
    }
    
    /* 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);
    
    /* free memory for time windowing and trace killing */
    if(TIMEWIN==1) free_vector(picked_times,1,ntr);
    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;
tilman.metz's avatar
tilman.metz committed
210
} /* end of function */