int writeRec(recPar rec, modPar mod, bndPar bnd, wavPar wav, int ixsrc, int izsrc, int nsam, int ishot, int fileno,
float *rec_vx, float *rec_vz, float *rec_txx, float *rec_tzz, float *rec_txz,
float *rec_p, float *rec_pp, float *rec_ss, float *rec_udp, float *rec_udvz, int verbose)
{
FILE *fpvx, *fpvz, *fptxx, *fptzz, *fptxz, *fpp, *fppp, *fpss, *fpup, *fpdown;
float *rec_up, *rec_down, *trace, *rec_vze, *rec_pe;
float dx, dt, cp, rho, fmin, fmax;
complex *crec_vz, *crec_p, *crec_up, *crec_dw;
int irec, ntfft, nfreq, nkx, xorig, ix, iz, it, ibndx;
int append;
double ddt;
char number[16], filename[1024];
segy hdr;
if (!rec.n) return 0;
if (ishot) append=1;
else append=0;
/* if the total number of samples exceeds rec_ntsam then a new (numbered) file is opened */
/* fileno has a non-zero value (from fdelmodc.c) if the number of samples exceeds rec_ntsam. */
strcpy(filename, rec.file_rcv);
if (fileno) {
sprintf(number,"_%03d",fileno);
name_ext(filename, number);
}
if (verbose>2) vmess("Writing receiver data to file %s", filename);
if (nsam != rec.nt && verbose) vmess("Number of samples written to last file = %d",nsam);
memset(&hdr,0,TRCBYTES);
ddt = (double)mod.dt;/* to avoid rounding in 32 bit precision */
dt = (float)ddt*rec.skipdt;
dx = (rec.x[1]-rec.x[0])*mod.dx;
hdr.dt = (unsigned short)lround((((double)1.0e6*ddt*rec.skipdt)));
hdr.scalco = -1000;
hdr.scalel = -1000;
hdr.sx = 1000*(mod.x0+ixsrc*mod.dx);
hdr.sdepth = 1000*(mod.z0+izsrc*mod.dz);
hdr.selev = (int)(-1000.0*(mod.z0+izsrc*mod.dz));
hdr.fldr = ishot+1;
hdr.trid = 1;
hdr.ns = nsam;
hdr.trwf = rec.n;
hdr.ntr = (ishot+1)*rec.n;
hdr.f1 = 0.0;
hdr.d1 = mod.dt*rec.skipdt;
hdr.d2 = (rec.x[1]-rec.x[0])*mod.dx;
hdr.f2 = mod.x0+rec.x[0]*mod.dx;
if (rec.type.vx) fpvx = fileOpen(filename, "_rvx", append);
if (rec.type.vz) fpvz = fileOpen(filename, "_rvz", append);
if (rec.type.p) fpp = fileOpen(filename, "_rp", append);
if (rec.type.txx) fptxx = fileOpen(filename, "_rtxx", append);
if (rec.type.tzz) fptzz = fileOpen(filename, "_rtzz", append);
if (rec.type.txz) fptxz = fileOpen(filename, "_rtxz", append);
if (rec.type.pp) fppp = fileOpen(filename, "_rpp", append);
if (rec.type.ss) fpss = fileOpen(filename, "_rss", append);
/* decomposed wavefield */
if (rec.type.ud && (mod.ischeme==1 || mod.ischeme==2) ) {
fpup = fileOpen(filename, "_ru", append);
fpdown = fileOpen(filename, "_rd", append);
ntfft = optncr(nsam);
nfreq = ntfft/2+1;
fmin = 0.0;
fmax = wav.fmax;
nkx = optncc(2*mod.nax);
ibndx = mod.ioPx;
if (bnd.lef==4 || bnd.lef==2) ibndx += bnd.ntap;
cp = rec.cp;
rho = rec.rho;
if (verbose) vmess("Decomposition array at z=%.2f with cp=%.2f rho=%.2f", rec.zr[0]+mod.z0, cp, rho);
rec_up = (float *)calloc(ntfft*nkx,sizeof(float));
rec_down= (float *)calloc(ntfft*nkx,sizeof(float));
crec_vz = (complex *)malloc(nfreq*nkx*sizeof(complex));
crec_p = (complex *)malloc(nfreq*nkx*sizeof(complex));
crec_up = (complex *)malloc(nfreq*nkx*sizeof(complex));
crec_dw = (complex *)malloc(nfreq*nkx*sizeof(complex));
rec_vze = rec_up;
rec_pe = rec_down;
/* copy input data into extended arrays with padded zeroes */
for (ix=0; ix<mod.nax; ix++) {
memcpy(&rec_vze[ix*ntfft],&rec_udvz[ix*rec.nt],nsam*sizeof(float));
memcpy(&rec_pe[ix*ntfft], &rec_udp[ix*rec.nt], nsam*sizeof(float));
}
/* transform from t-x to kx-w */
xorig = ixsrc+ibndx;
xt2wkx(rec_vze, crec_vz, ntfft, nkx, ntfft, nkx, xorig);
xt2wkx(rec_pe, crec_p, ntfft, nkx, ntfft, nkx, xorig);
/* apply decomposition operators */
kxwdecomp(crec_p, crec_vz, crec_up, crec_dw,
nkx, mod.dx, nsam, dt, fmin, fmax, cp, rho, verbose);
/* transform back to t-x */
wkx2xt(crec_up, rec_up, ntfft, nkx, nkx, ntfft, xorig);
wkx2xt(crec_dw, rec_down, ntfft, nkx, nkx, ntfft, xorig);
/* reduce array to rec.nt samples rec.n traces */
for (irec=0; irec<rec.n; irec++) {
ix = rec.x[irec]+ibndx;
for (it=0; it<rec.nt; it++) {
rec_up[irec*rec.nt+it] = rec_up[ix*ntfft+it];
rec_down[irec*rec.nt+it] = rec_down[ix*ntfft+it];
}
}
free(crec_vz);
free(crec_p);
free(crec_up);
free(crec_dw);
}
if (rec.type.ud && (mod.ischeme==3 || mod.ischeme==4) ) {
}
for (irec=0; irec<rec.n; irec++) {
hdr.tracf = irec+1;
hdr.tracl = ishot*rec.n+irec+1;
hdr.gx = 1000*(mod.x0+rec.x[irec]*mod.dx);
hdr.offset = (rec.x[irec]-ixsrc)*mod.dx;
hdr.gelev = (int)(-1000*(mod.z0+rec.z[irec]*mod.dz));
if (rec.type.vx) {
traceWrite( &hdr, &rec_vx[irec*rec.nt], nsam, fpvx) ;
}
if (rec.type.vz) {
traceWrite( &hdr, &rec_vz[irec*rec.nt], nsam, fpvz) ;
}
if (rec.type.p) {
traceWrite( &hdr, &rec_p[irec*rec.nt], nsam, fpp) ;
}
if (rec.type.txx) {
traceWrite( &hdr, &rec_txx[irec*rec.nt], nsam, fptxx) ;
}
if (rec.type.tzz) {
traceWrite( &hdr, &rec_tzz[irec*rec.nt], nsam, fptzz) ;
}
if (rec.type.txz) {
traceWrite( &hdr, &rec_txz[irec*rec.nt], nsam, fptxz) ;
}
if (rec.type.pp) {
traceWrite( &hdr, &rec_pp[irec*rec.nt], nsam, fppp) ;
}
if (rec.type.ss) {
traceWrite( &hdr, &rec_ss[irec*rec.nt], nsam, fpss) ;
}
if (rec.type.ud && mod.ischeme==1) {
traceWrite( &hdr, &rec_up[irec*rec.nt], nsam, fpup) ;
traceWrite( &hdr, &rec_down[irec*rec.nt], nsam, fpdown) ;
}
}
if (rec.type.vx) fclose(fpvx);
if (rec.type.vz) fclose(fpvz);
if (rec.type.p) fclose(fpp);
if (rec.type.txx) fclose(fptxx);
if (rec.type.tzz) fclose(fptzz);
if (rec.type.txz) fclose(fptxz);
if (rec.type.pp) fclose(fppp);
if (rec.type.ss) fclose(fpss);
if (rec.type.ud) {
fclose(fpup);
fclose(fpdown);
free(rec_up);
free(rec_down);
}
return 0;
}
int main (int argc, char **argv)
{
FILE *fp;
char *file_gp, *file_fp, *file_wav;
int nx, nt, ngath, ntraces, ret, size, nxwav;
int ntfft, nfreq, nxfft, nkx, i, j, n;
float dx, dt, fx, ft, xmin, xmax, scl, *den, dentmp;
float df, dw, dkx, eps, reps, leps, sclfk;
float *Gpd, *f1pd, *G_pad, *f_pad, *wav, *wav_pad, *outdata;
complex *G_w, *f_w, *Gf, *amp, *wav_w, *S, *ZS, *SS;
segy *hdr_gp, *hdr_fp, *hdr_wav, *hdr_out;
initargs(argc, argv);
requestdoc(1);
if(!getparstring("file_gp", &file_gp)) file_gp=NULL;
if (file_gp==NULL) verr("file %s does not exist",file_gp);
if(!getparstring("file_fp", &file_fp)) file_fp=NULL;
if (file_fp==NULL) verr("file %s does not exist",file_fp);
if(!getparstring("file_wav", &file_wav)) file_wav=NULL;
if (file_wav==NULL) verr("file %s does not exist",file_wav);
if(!getparfloat("eps", &eps)) eps=0.00;
if(!getparfloat("reps", &reps)) reps=0.01;
ngath = 1;
ret = getFileInfo(file_gp, &nt, &nx, &ngath, &dt, &dx, &ft, &fx, &xmin, &xmax, &scl, &ntraces);
size = nt*nx;
Gpd = (float *)malloc(size*sizeof(float));
hdr_gp = (segy *) calloc(nx,sizeof(segy));
fp = fopen(file_gp, "r");
if (fp == NULL) verr("error on opening input file_in1=%s", file_gp);
nx = readData(fp, Gpd, hdr_gp, nt);
fclose(fp);
f1pd = (float *)malloc(size*sizeof(float));
hdr_fp = (segy *) calloc(nx,sizeof(segy));
fp = fopen(file_fp, "r");
if (fp == NULL) verr("error on opening input file_in1=%s", file_fp);
nx = readData(fp, f1pd, hdr_fp, nt);
fclose(fp);
wav = (float *)malloc(nt*sizeof(float));
hdr_wav = (segy *) calloc(1,sizeof(segy));
fp = fopen(file_wav, "r");
if (fp == NULL) verr("error on opening input file_in1=%s", file_fp);
nxwav = readData(fp, wav, hdr_wav, nt);
fclose(fp);
/* Start the scaling */
ntfft = optncr(nt);
nfreq = ntfft/2+1;
df = 1.0/(ntfft*dt);
dw = 2.0*PI*df;
nkx = optncc(nx);
dkx = 2.0*PI/(nkx*dx);
sclfk = dt*(dt*dx)*(dt*dx);
vmess("ntfft:%d, nfreq:%d, nkx:%d dx:%.3f dt:%.3f",ntfft,nfreq,nkx,dx,dt);
/* Allocate the arrays */
G_pad = (float *)calloc(ntfft*nkx,sizeof(float));
if (G_pad == NULL) verr("memory allocation error for G_pad");
f_pad = (float *)calloc(ntfft*nkx,sizeof(float));
if (f_pad == NULL) verr("memory allocation error for f_pad");
wav_pad = (float *)calloc(ntfft,sizeof(float));
if (wav_pad == NULL) verr("memory allocation error for wav_pad");
G_w = (complex *)calloc(nfreq*nkx,sizeof(complex));
if (G_w == NULL) verr("memory allocation error for G_w");
f_w = (complex *)calloc(nfreq*nkx,sizeof(complex));
if (f_w == NULL) verr("memory allocation error for f_w");
Gf = (complex *)calloc(nfreq*nkx,sizeof(complex));
if (Gf == NULL) verr("memory allocation error for Gf");
wav_w = (complex *)calloc(nfreq*nkx,sizeof(complex));
if (wav_w == NULL) verr("memory allocation error for wav_w");
amp = (complex *)calloc(nfreq*nkx,sizeof(complex));
if (amp == NULL) verr("memory allocation error for amp");
S = (complex *)calloc(nfreq*nkx,sizeof(complex));
if (S == NULL) verr("memory allocation error for S");
ZS = (complex *)calloc(nfreq*nkx,sizeof(complex));
if (ZS == NULL) verr("memory allocation error for ZS");
SS = (complex *)calloc(nfreq*nkx,sizeof(complex));
if (SS == NULL) verr("memory allocation error for SS");
den = (float *)calloc(nfreq*nkx,sizeof(float));
if (den == NULL) verr("memory allocation error for den");
/* pad zeroes in 2 directions to reach FFT lengths */
pad2d_data(Gpd, nt,nx,ntfft,nkx,G_pad);
pad2d_data(f1pd,nt,nx,ntfft,nkx,f_pad);
pad_data( wav, nt, 1,ntfft, wav_pad);
/* double forward FFT */
xt2wkx(&G_pad[0], &G_w[0], ntfft, nkx, ntfft, nkx, 0);
xt2wkx(&f_pad[0], &f_w[0], ntfft, nkx, ntfft, nkx, 0);
rcmfft(&wav_pad[0], &Gf[0], ntfft, 1, ntfft, nfreq, -1);
for (i=0; i<nkx; i++) {
for (j=0; j<nfreq; j++) {
wav_w[j*nkx+i].r = Gf[j].r;
wav_w[j*nkx+i].i = Gf[j].i;
}
}
for (i = 0; i < nkx*nfreq; i++) {
Gf[i].r = (G_w[i].r*f_w[i].r - G_w[i].i*f_w[i].i);
Gf[i].i = (G_w[i].r*f_w[i].i + G_w[i].i*f_w[i].r);
S[i].r = (wav_w[i].r*wav_w[i].r + wav_w[i].i*wav_w[i].i);
S[i].i = (wav_w[i].r*wav_w[i].i - wav_w[i].i*wav_w[i].r);
ZS[i].r = (Gf[i].r*S[i].r + Gf[i].i*S[i].i);
ZS[i].i = (Gf[i].r*S[i].i - Gf[i].i*S[i].r);
SS[i].r = (S[i].r*S[i].r + S[i].i*S[i].i);
SS[i].i = (S[i].r*S[i].i - S[i].i*S[i].r);
if (i==0) dentmp=SS[i].r;
else dentmp=MAX(dentmp,SS[i].r);
}
leps = reps*dentmp+eps;
vmess("dentmp:%.4e leps:%.4e",dentmp,leps);
for (i = 0; i < nkx*nfreq; i++) {
S[i].r = (ZS[i].r*SS[i].r+ZS[i].i*SS[i].i)/(SS[i].r*SS[i].r+SS[i].i*SS[i].i+leps);
S[i].i = (ZS[i].i*SS[i].r-ZS[i].r*SS[i].i)/(SS[i].r*SS[i].r+SS[i].i*SS[i].i+leps);
amp[i].r = sqrtf(S[i].r*S[i].r+S[i].i*S[i].i);
amp[i].i = 0.0;
// complex_sqrt(&[i]);
if (isnan(amp[i].r)) amp[i].r = 0;
if (isnan(amp[i].i)) amp[i].i = 0;
if (isinf(amp[i].r)) amp[i].r = 0;
if (isinf(amp[i].i)) amp[i].i = 0;
Gf[i].r = (G_w[i].r*amp[i].r - G_w[i].i*amp[i].i);
Gf[i].i = (G_w[i].r*amp[i].i + G_w[i].i*amp[i].r);
}
// for (i=0; i<nfreq; i++) {
// for (j=0; j<nkx; j++) {
// Gpd[j*nfreq+i] = sqrtf(amp[i*nkx+j].r*amp[i*nkx+j].r+amp[i*nkx+j].i*amp[i*nkx+j].i);
// }
// }
// conv_small(G_w, amp, Gf, nkx, nfreq); // Scaled data
/* inverse double FFT */
wkx2xt(&Gf[0], &G_pad[0], ntfft, nkx, nkx, ntfft, 0);
/* select original samples and traces */
scl = (1.0)/(nkx*ntfft);
scl_data(G_pad,ntfft,nx,scl,Gpd ,nt);
fp = fopen("out.su", "w+");
ret = writeData(fp, Gpd, hdr_gp, nt, nx);
if (ret < 0 ) verr("error on writing output file.");
fclose(fp);
// fp = fopen("wav.su", "w+");
// for (j=0; j<nkx; j++) {
// hdr_gp[j].ns = nfreq;
// }
// ret = writeData(fp, Gpd, hdr_gp, nfreq, nkx);
// if (ret < 0 ) verr("error on writing output file.");
// fclose(fp);
free(f1pd);free(Gpd);free(hdr_gp);free(hdr_fp);
return 0;
}