地震數(shù)據(jù)處理課程-浙江大學(xué)畢業(yè)論文-在線瀏覽
2024-08-07 13:48本頁面
【正文】 ETER (PI=,DT=) REAL XSIN(200),X(200),WAVE(200) REAL X_SIN_R(200),X_SIN_I(200) REAL X_R(200),X_I(200) REAL X_WAVE_R(200),X_WAVE_I(200) REAL SINSPRT(200),XSPRT(200),WAVESPRT(200) REAL DF COMPLEX XSIN_C(200),X_C(200),X_WAVE_C(200) CCCCCCCCCCCC 對 SIN 的分析 CCCCCCCCCCCC DO 100 I=1,128 XSIN(I)=SIN(2*I*PI/)100 CONTINUECCCCCCCCC 是數(shù)據(jù)轉(zhuǎn)換成復(fù)數(shù)形式 CCCCCCCCCC DO 200 I=1,128200 XSIN_C(I)=CMPLX(XSIN(I),) CALL FFT(128,XSIN_C,) DO 300 I=1,128 300 X_SIN_R(I)=REAL(XSIN_C(I)) DO 400 I=1,128400 X_SIN_I(I)=AIMAG(XSIN_C(I)) OPEN(1,FILE=39。,STATUS=39。,FORM=39。) OPEN(2,FILE=39。,STATUS=39。,FORM=39。) WRITE(3,*)(Y_DZ(I),I=1,49) CLOSE(3) CLOSE(1) ENDCCCCCCCCCCCCCCCCCCC 褶積子程序 CCCCCCCCCCCCCCCCCCC SUBROUTINE CON(A,B,C,I,J,K) DIMENSION A(I),B(J),C(K) DO 1 K1=1,K 1 C(K1)= DO 2 I1=1,I DO 2 I2=1,J II=I1+I21 2 C(II)=C(II)+A(I1)*B(I2)* RETURN ENDCCCCCCCCCCCCCCCCCC 自相關(guān)子程序 CCCCCCCCCCCCCCCCCC SUBROUTINE AUTCOR(J,K,C,A) DIMENSION C(J),A(K) DO 7 N=1,K A(N)= I=N DO 6 IN=I,J IL=INN+1 6 A(N)=A(N)+C(IN)*C(IL) 7 CONTINUE RETURN END4. 設(shè)計(jì)高通濾波因子CCCCCCCCCCC 高通濾波器的設(shè)計(jì) CCCCCCCCCCC PROGRAM MAIN PARAMETER (N=101,DT=,PI=,F=) REAL H(150),H2_R(128),H2_I(128),H_S(128) INTEGER K,NFFT COMPLEX H2(128) OPEN(1,FILE=39。,STATUS=39。,FORM=39。) WRITE(2,*)(Y_DNZ(I),I=1,49) CLOSE(2)CCCCCCCCCC 零相位遞歸濾波的設(shè)計(jì) CCCCCCCCCCCC DO 60 I=49,0,1 X3(I)= X4(I)= DO 70 J=0,49I70 X3(I)=X3(I)+A(J)*Y_DNZ(I+J) IF() THEN X4(I)= ELSE DO 80 K=2,49I80 X4(I)=X4(I)+B(K)*Y_DZ(I+K) END IF Y_DZ(I)=X3(I)X4(I)60 CONTINUE OPEN(3,FILE=39。,STATUS=39。,FORM=39。) READ(1,*)(X(I),I=1,50)CCCCCCCCCCC 非零相位遞歸濾波的設(shè)計(jì) CCCCCCCCC DO 10 I=0,49 X1(I)= X2(I)= DO 20 J=1,I20 X1(I)=X1(I)+A(J)*X(IJ) IF() THEN X2(I)= ELSE DO 30 K=1,I30 X2(i)=X2(i)+B(k)*Y_DNZ(IK) END IF Y_DNZ(I)=X1(I)X2(I)10 CONTINUE OPEN(2,FILE=39。,STATUS=39。,FORM=39。) write(3,*)(Y_CZ(i),I=1,69) CLOSE(3) CLOSE(2)CCCCCCCCCCCCCCC 遞歸濾波的設(shè)計(jì) CCCCCCCCCCCCCCCC X 存放INPUT3里數(shù)據(jù)的數(shù)組 CC Y_DNZ 為非零相位遞歸濾波，Y_DZ 為零相位遞歸濾波 CC X1,2,X,3,X4 為運(yùn)算過程中的過度變量 C A(0)= A(1)= A(2)= A(3)= A(4)= b(0)= B(1)= B(2)= B(3)= B(4)=CCCCCCCCCCCCCCC 對 A 補(bǔ)零 CCCCCCCCCCCCCCCCCC DO 40 i=5,4940 A(I)=CCCCCCCCCCCCCCC 對 B 補(bǔ)零 CCCCCCCCCCCCCCCCCC DO 50 i=5,4950 B(I)=CCCCCCC 從外部數(shù)據(jù)向 X 導(dǎo)入數(shù)據(jù) CCCCCCCCCCCC OPEN(1,FILE=39。,STATUS=39。,FORM=39。) WRITE(2,*)(Y_CNZ(i),I=1,69) CLOSE(2) CALL AUTCOR(20,20,H_NZ,H_HZ) CALL con(X,H_CZ,Y_CZ,50,20,69) OPEN(3,FILE=39。,STATUS=39。,FORM=39。) READ(1,*)(X(I),I=1,50) CLOSE(1) CALL CON(X,H_NZ,Y_CNZ,50,20,69) OPEN(2,FILE=39。,STATUS=39。,FORM=39。) WRITE(3,*)(Y_BAND(I),I=1,NFFT) CLOSE(3) CLOSE(1) ENDCCCCCCCCCCCCCCCCC子程序CCCCCCCCCCCCCCCCCCCCC LX 為輸入數(shù)據(jù)的點(diǎn)數(shù) CCCCCCCCCCCCCCCCCCCCCC CX 為復(fù)型數(shù)組 CCCCCCCCCCCCCCCCCCCCCCCCCCC SIGNI 為轉(zhuǎn)換標(biāo)志 CCCCCCCCCCCCCCCCCCCC SUBROUTINE FFT(LX,CX,SIGNI) COMPLEX CX(LX),CARG,CEXP,CW,CTEMP J=1 SC= IF()SC= SIG=SIGNI DO 300 I=1,LX IF()GO TO 100 CTEMP=CX(J)*SC CX(J)=CX(I)*SC CX(I)=CTEMP 100 M=LX/2 200 IF()GO TO 300 J=JM M=M/2 IF()GO TO 200 300 J=J+M L=1 400 ISTEP=2*L DO 500 M=1,L CARG=(,)*(*SIG*(M1))/L CW=CEXP(CARG) DO 500 I=M,LX,ISTEP CTEMP=CW*CX(I+L) CX(I+L)=CX(I)CTEMP 500 CX(I)=CX(I)+CTEMP L=ISTEP IF()GO TO 400 RETURN END3. 褶積濾波與快變?yōu)V波的比較CCCCCCCCCCCCC 褶積濾波與遞歸濾波的比較 CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC 褶積濾波的設(shè)計(jì) CCCCCCCCCCCCCCCCCC PROGRAM MAIN PARAMETER(DT=)C H_NZ為非零相位濾波因子,H_Z為零相位濾波因子 CC Y_CNZ為非零相位濾波結(jié)果,Y_CZ為零相位濾波結(jié)果 C REAL Y_CNZ(1:100),Y_CZ(1:200) REAL H_Z(1:20),H_NZ(1:20) REAL X(1:50) INTEGER I,J,K,N REAL A(0:100),B(0:100) REAL Y_DNZ(1:100),Y_DZ(1:100) REAL X3(1:100),X4(1:100),X1(1:100),X2(1:100) REAL DF DATA H_NZ/, $ , $ OPEN(1,FILE=39。,STATUS=39。,FORM=39。) WRITE(2,*)(Y_LOW(I),I=1,NFFT) CLOSE(2)CCCCCCCCCCC 帶通濾波因子的設(shè)計(jì) CCCCCCCCCCC DO 70 I=1,NFFT/2 IF((I*).AND.(I*))THEN H_BAND(I)= ELSE H_BAND(I)= END IF70 CONTINUECCCCCCCCC 使濾波器理想化（對稱）CCCCCCCCCC DO 80 I=NFFT/2+1,NFFT F=I*DF H_LOW(I)=H_BAND(NFFTI+1)80 CONTINUECCCCCCCCCCCCCCC 實(shí)現(xiàn)濾波 CCCCCCC
環(huán)評公示相關(guān)推薦
鄂ICP備17016276號-1