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//ÕýÑÝ£¨ºÏ³ÉµØÕð¼Ç¼£© /**************************************************/ //¿âÍ·Îļþ #include"stdio.h" #include"stdlib.h" #include"math.h" /***************************************************/ //Ô¤´¦Àíºê¶¨Òå #define L_R 69 #define Trace 31 #define dx 1 //µÀ¼ä¾à #define sample 512 #define dt 0.001 #define pi 3.1415926 /****************************************************/ //ÉùÃ÷º¯Êý int Ricker(float *x,float y);//À׿Ë×Ó²¨ int Reflect(float *x,float *y,float r[]);//·´ÉäϵÊý int Conv(float *x,float la,float *y,float lb,float c[]);//ñÞ»ý /****************************************************/ //Ö÷º¯Êý²¿·Ö int main() { FILE *fp_reflect,*fp_conv; if((fp_reflect=fopen("reflect.dat","wb" )==NULL)printf("can not open the reflect file\n" ;if((fp_conv=fopen("conv.dat","wb" )==NULL)printf("can not open the conv file\n" ;int i; float F;//×Ó²¨Ö÷Ƶ float Ri[L_R]={0.},Re[sample],Co[sample],P[3],VP[3]; //¶¨Ò嵨²ãÄ£ÐͲÎÊý for(i=0;i<3;i++) { printf("please input the magnitude of VP[%d]\n",i); scanf("%f",VP+i); printf("please input the magnitude of P[%d]\n",i); scanf("%f",P+i); } printf("please input the frequency of wave\n" ;scanf("%d",&F); for(i=0;i<Trace;i++) { Reflect(VP,P,Re); Conv(Re,sample,Ri,L_R,Co); fwrite(Re,sizeof(float),sample,fp_reflect );//frite¶ÁÒ»¸öʵÊý»òÕ߽ṹÌå±äÁ¿µÄÖµ fwrite(Co,sizeof(float),sample,fp_conv ); } fclose(fp_reflect); fclose(fp_conv); } /****************************************************/ //¶¨Òå×Óº¯Êý int Ricker(float *x,float y) { FILE *fp; if((fp=(fopen("Ricker.txt","w" ))==NULL)printf("can not open the file\n" ;int i; float t; for(i=1;i<=L_R/2;i++) { t=i*dt; *(x+L_R/2) = 1.0; x[L_R/2+i] = cos(2*pi*y*t)*exp(-pow(pi*y*t,2)); x[L_R/2-i] = x[L_R/2+i]; } for(i=0;i<L_R;i++) { fprintf(fp,"%f",x+i); } fclose(fp); return 1; } int Reflect(float *x,float *y,float r[]) { int i,Z1,Z2; static int h=25; Z1=(int)h/x[0]*dt; Z2=(int)Z1+h/x[1]*dt; for(i=0;i<sample;i++) { if(i==Z1) r=(x[1]*y[1]-x[0]*y[0])/(x[1]*y[1]+x[0]*y[0]); if(i==Z2) r=(x[2]*y[2]-x[1]*y[1])/(x[1]*y[1]+x[2]*y[2]); else r=0.; } return 1; } int Conv(float *x,float la,float *y,float lb,float c[]) { int i,j; for(i=1;i<=la+lb-1;i++) { c=0.; for(j=0;j<i&&i-j<lb;j++) { c=c+x[j]*x[i-j-1]; } } return 1; } |
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