File: PLOFIT.FC of Tape: Various/ETH/fc2

(.FC,.FO Focal format converted to 'WRITE' listing) 

---

C-POLFIT.FC MAY-77

01.10 I (LX),1.2;G LX
01.20 L N FOCCOM.ZE
01.30 L P FOUPIC
01.35 E
01.40 S LX=2.1

02.10 A !"POLYNOMIAL FIT: LOWEST ANGLE   ",LA,"   HIGHEST ANGLE   ",HA
02.20 A "ANGLE INCREMENT",IA
02.25 A !"              LOWEST FREQU   ",Z,"   HIGHEST FREQU   ",Y;S OF=(Z+Y)/2
02.27 S SO=0
02.30 S NP=(HA-LA)/IA;C # OF INTERVALS
02.40 S IP=FITR(256/NP);S HP=IP*NP
02.45 F A=LA,IA,HA;T !"ANGLE= ",%3,A,"     FREQU";A Z;S Y=FCOM((A-LA)*IP/IA,Z-OF);D 13.5
02.50 S CH=0;S P=0;S P(1)=0;S P(2)=0;S P(3)=0;S P(4)=0
02.52 D 13.8
02.55 F A=LA,IA,HA;D 3
02.65 T !"COEFFS  ",%6.04,P+OF,P(1),P(2),P(3),P(4)
02.67 T !"CHI=    ",FSQT(CH/(NP-1))
02.70 S SL=0;S U=0;F I=0,HP;D 4
02.75 F I=0,HP;D 23
02.80 F A=LA,IA,HA;D 6
02.90 S LX=2.1;Q

03.10 S J=(A-LA)/IA+1
03.15 S I=J
03.20 S Z=FCOM((J-1)*IP)-P;S X=Z
03.30 S Z=Z/J;S J=J+1;S I=I-1;S X=X*I
03.35 S P=P+P(1)+25*Z;D 3.3
03.40 S P(1)=P(1)+P(2)+300*Z;D 3.3
03.50 S P(2)=P(2)+P(3)+2100*Z;D 3.3
03.60 S P(3)=P(3)+P(4)+8400*Z;D 3.3
03.70 S P(4)=P(4)+15120*Z
03.80 S CH=CH+Z*X

04.10 S A=I*IA/IP+LA;S J=I/IP-NP
04.17 S Z=P(4);S X=0;S Y=0;I (SO),4.2,4.4
04.20 S Z=P(3)+Z*(J-4)/4
04.25 S Z=P(2)+Z*(J-3)/3
04.30 S Z=P(1)+Z*(J-2)/2
04.40 S Z=P+Z*(J-1)
04.45 I (-SL*(U-Z))4.47,4.47;T "      MINIMUM AT PHI=  ",%6.04,A
04.47 S SL=U-Z;S U=Z
04.50 I (FABS(FITR(I/IP)-I/IP)),4.6;S Y=FCOM(I,Z);D 13.5;R
04.60 T !"ANGLE=  ",%3,A,"   DELTA NU=  ",%6.04,FCOM(I)-Z

05.01 C FOUR
05.04 S DL=DK*.512;I (DL),5.07,5.05
05.05 T "FREQ. IN TESLA / FMAX=",%6.02,500/DK
05.06 A !,"BEG"SI,"END"SF;S SI=SI*DL;S SF=SF*DL;G 5.1
05.07 A ?SI,SF?
05.10 S X=(SF-SI)/16;I (X-FITR(X)-.5)5.14;S X=X+.5
05.14 S SS=FITR(X)/16;S S2=SI+SS*128;S SF=SI+SS*256
05.16 I (-DL)5.17;T %3,"'"SS*32"'";G 5.2
05.17 T %4.01,"'"SS*32/DL,"'"
05.20 T !;D 13.9;D 12
05.30 S Z=FOUR(SI,SS);S ZM=FX(1,760)

06.01 S X=FCOM(256+(A-LA)*IP/IA)*180/PI
06.02 S Y=X*FABS(FSIN((A+83)*PI/180))/FABS(FSIN((A-83)*PI/180))
06.05 T !"ANGLE= ",%3,A,"  DLNA/DPHI= ",%6.05,X,"  DLNA/DPHI*SIN(PHI+83)/SIN(PHI-83)=  ",Y

09.01 C TAU + NUMAX
09.10 S X=256+(NU-SI)/SS
09.20 I (FCOM(X+1)-FCOM(X))9.25,9.25;S X=X+1;G 9.2
09.25 I (FCOM(X-1)-FCOM(X))9.3,9.3;S X=X-1;G 9.25
09.30 S XM=X;S AH=.5*FCOM(XM);S NU=(XM-256)*SS+SI
09.40 S X=X-1;I (FCOM(X)-AH)9.45,9.45,9.4
09.45 S X1=X;S A1=FCOM(X);S A2=FCOM(X+1);S X=XM+1
09.50 I (FCOM(X)-AH)9.55;S X=X+1;G 9.5
09.55 S X3=X-1;S A3=FCOM(X3);S A4=FCOM(X)
09.60 S X1=X1+(AH-A1)/(A2-A1);S X3=X3+(A3-AH)/(A3-A4)
09.70 S TA=(X3-X1)*SS/2
09.71 S TA=TA*N/256
09.72 I (TA-.95)9.74;S TA=TA^4-.75;S TA=FSQT(FSQT(TA));G 9.8
09.73 I (-TA)9.74,9.74;S TA=.1;G 9.8
09.74 I (TA-.885)9.9;S TA=FSQT((TA-.885)/.28)
09.80 S TA=TA*256/N;R
09.90 T "!TAU!";S TA=0.01

10.01 C PEAKEVAL
10.04 A "FREQ"NF;S NU=NF*DL;I (-FABS(NU))10.05;A ?I?;S NU=NF(I)*DL
10.05 I (NU-256)10.06;T !!,"FREQ. TOO BIG!!",!;Q
10.06 S SI=NU-8;S X=1;D 5.14;D 5.2;D 5.3
10.10 D 9;D 20;T %5.03, "NF",NU/DL,"  PH",PH,"  AF",AF,"  TF",TA*2*PI/DL,!
10.20 S NY=NU;F I=152,155;D I/10
10.30 A !"STORE AS NF(I)? ",?I?;I (-FABS(I))10.4;R
10.40 S NF(I)=NU/DL;S PH(I)=PH;S AF(I)=AF;S TF(I)=TA*2*PI/DL

12.01 C FOURSCALE
12.04 S S1=SI
12.05 I (DL),12.1;S S1=SI/DL;S S2=S2/DL;S SF=SF/DL
12.06 I (SF-1000)12.1;S Z=10^(FITR(.4343*FLOG(SF)-2));S S1=S1/Z;S S2=S2/Z;S SF=SF/Z;T "FREQS*",%4,Z,!
12.10 S X=194;S A=S1/100;S Y=FITR(A+.00001)
12.12 I (-Y)12.14;S Z=FDIS(X+2,-96);G 12.16
12.14 S L=12.2;G 12.52
12.16 D 12.8;I (-Y)12.18;S Z=FDIS(X+1,-96);G 12.8
12.18 D 12.9;G 12.8
12.20 S X=201;S A=S2/100;S Y=FITR(A);S L=12.3;G 12.5
12.30 S X=211;S A=SF/1000;S Y=FITR(A);I (-Y)12.32;D 12.54;G 12.34
12.32 D 12.9;D 12.8;D 12.9;S L=12.4;G 12.56
12.34 D 12.8;S L=12.4;G 12.5
12.40 R
12.50 I (-Y)12.52,12.54
12.52 D 12.9;G 12.56
12.54 S Z=FDIS(X,-96);S X=X+1
12.56 D 12.8;D 12.9;D 12.8;D 12.9;G L
12.80 S A=(A-Y)*10+1E-4;S Y=FITR(A)
12.90 S Z=FDIS(X,Y-80);S X=X+1
12.92 G 12.2

13.01 C DIS SWITCH
13.40 S Z=FDIS(0,0)
13.50 S Z=FX(0,500)
13.60 S Z=FX(1,760)
13.70 S Z=FDIS(A,FABS(FDIS(A)));S Z=FDIS(B,-FABS(FDIS(B)))
13.80 S A=4;S B=5;D 13.7
13.90 S A=5;S B=4;D 13.7

15.01 C ALIASED FREQUENCIES
15.05 A ?DK?,!
15.10 A ?NU?;S NY=NU
15.20 T "  FREQ=",%5.02
15.30 T NY/DL
15.40 S NY=512-NU;D 15.3
15.50 S NY=512+NU;D 15.3
15.90 T !;G 15.1

16.01 C PLOT
16.02 C WITH AXES AND TEXT: PA=0, ELSE PA=2
16.05 S PA=2;A ?PA?
16.10 S PF=4;I (FDIS(5))16.2;S PF=5
16.20 F I=2,19;S Z=FDIS(I,-FABS(FDIS(I)))
16.70 S X=PF+PA;D 16.9;S Z=FDIS(21,1)
16.80 D 16.9;S X=PF;D 16.9;S $=1024;Q
16.90 S Z=FDIS(X,-FDIS(X))

18.01 C SQ.ROOT OF POWERSPECTRUM(FCOM(1))
18.10 F I=256,511;S Z=FCOM(I,FSQT(FCOM(I)));S Z=FX(1,760)

19.10 A !,X;T FCOM(X);G 19.1

20.01 C FOUGNAU
20.10 S N1=NU*PI/256;S A=0;S B=0
20.20 F I=0,N-1;S A=A+FCOM(I)*FCOS(I*N1)
20.25 I (NU*(NU-256))20.3,20.4,20.3
20.30 F I=0,N-1;S B=B+FCOM(I)*FSIN(I*N1)
20.40 S AF=2*FSQT(A^2+B^2)/N
20.50 I (A)20.7,20.6;S PH=0;G 20.8
20.60 S PH=90*FSGN(B);R
20.70 S PH=180*FSGN(B)
20.80 S PH=PH+180*FATN(B/A)/PI
20.95 S AM=AF*TA*PI*N/(256*(1-FEXP(-TA*N*PI/256)))

21.01 C SUB PEAK
21.10 D 13.8
21.15 A ?NF?;I (-FABS(NF))21.2;A ?I?
21.16 S NF=NF(I);S PH=PH(I);S AF=AF(I);S TF=TF(I);G 21.22
21.20 A ?PH AF TF MP?
21.22 I (-FABS(MP))21.25;S MP=1;T "  MP=1!!"
21.25 A !"ADD",Z;I  (-FABS(Z-0YES))21.3;S AF=-AF
21.30 S NO=NF*2*PI*DK*1E-3;S PO=PH*PI/180;S TO=TF*DK*1E-3;S A1=HI*DK*1E-3
21.31 S A=AF*TO*N/(1-FEXP(-N*TO));S H6=MP*NO*TM*.0048/A1
21.32 F J=0,N-1;S H1=1+J*A1;D 21.4;D 13.5
21.33 R
21.35 C IF MODULATION CHANGE FSQT(H1)
21.40 S Z=FCOM(J,FCOM(J)-A*FCOS(J*NO-PO)*FEXP(-J*TO)/((1-FEXP(-H1*H6))*FSQT(H1)))

23.05 D 13.9
23.10 S A=I*IA/IP+LA;S J=I/IP-NP
23.20 S Z=P(4)
23.25 S X=Z*(J-3)/12
23.30 S Z=P(3)+Z*(J-4)/4
23.35 S X=(X+Z/3)*(J-2)/2
23.40 S Z=P(2)+Z*(J-3)/3
23.45 S X=(X+Z/2)*(J-1)
23.50 S Z=P(1)+Z*(J-2)/2
23.60 S Z=(Z+X)/IA
23.70 S Z=FCOM(I+256,Z/(FCOM(I)+OF));D 13.6

24.92 .15

---