projects / pdp8.git / blame
| Commit | Line | Data |
|---|---|---|
| 81e70d48 PH |
1 | C -+-+-+-+-+ \ e H A E F I 1 . F T \ e -+-+-+-+-+\r |
| 2 | C\r | |
| 3 | C 11 POINT FILTER\r | |
| 4 | C\r | |
| 5 | SUBROUTINE FI1LTR\r | |
| 6 | INCLUDE HAEBUF.FI\r | |
| 7 | INCLUDE HAEGSA.FI\r | |
| 8 | INCLUDE HAEPTI.FI\r | |
| 9 | INCLUDE HABRK.FI\r | |
| 10 | INCLUDE HAEI85.FI\r | |
| 11 | INCLUDE HAETTY.FI\r | |
| 12 | C\r | |
| 13 | \fC\r | |
| 14 | REAL COND\r | |
| 15 | INTEGER NCOND\r | |
| 16 | EXTERNAL COND,NCOND\r | |
| 17 | C\r | |
| 18 | REAL FFTX(85), @ PART OF THE FFT BUFFER\r | |
| 19 | * ORD,ABZ,TEMSET,\r | |
| 20 | * FFTMIN,FFTMAX, @ HERE WE SAVE THE NEW MINIMUM AND MAXIMUM\r | |
| 21 | * X(11),Y(11), @ TEMPORARY STORAGE\r | |
| 22 | * A(6) @ SCALING\r | |
| 23 | INTEGER I,J,K,INCR2,PNT,BAND\r | |
| 24 | LOGICAL F1, @ SAMPLE BUFFER IS EMPTY FLAG\r | |
| 25 | * W @ BUFFER CHANGED FLAG\r | |
| 26 | DATA A /.1038,.1956,.1608,.0488,.021,-.03/\r | |
| 27 | C\r | |
| 28 | C\r | |
| 29 | C\r | |
| 30 | C OPEN THE INPUT DATA FILE UNIT 5\r | |
| 31 | C READ THE FILE HEADER FIRST BLOCK AND\r | |
| 32 | C THE DATA HEADER, THE SECOND BLOCK OF UNIT 5\r | |
| 33 | C INSERT THE COMMON CEGESA FROM THE DATA FILE\r | |
| 34 | C\r | |
| 35 | IF (REC5.LT.1) DEFINE FILE5(MAXBL5,85,U,REC5)\r | |
| 36 | REC5=1\r | |
| 37 | F1=SAMCNT.EQ.0 .OR. .NOT. COMP @ HEADER OF FILE 5 DOES NOT MATCH THE HEADER OF THE ACTUAL SAMPLE BUFFER\r | |
| 38 | READ (5'REC5) (RCRD0(I),I=1,85) @ READ THE FILE HEADER\r | |
| 39 | IF (F1) SAMCNT=0 @ CLEAR THE ACTUAL SAMPLE BUFFER\r | |
| 40 | IF (F1) COMP=.FALSE. @ AND THE COMPUTATIONS FLAG TOO\r | |
| 41 | IF (REDVAL.NE.6H2DPWLD) GOTO 20 @ RECORD IS EMPTY\r | |
| 42 | REDVAL=0 @ FOR SAVETY ONLY\r | |
| 43 | READ (5'REC5) LCEGSA(1),(LCEGSA(I),I=2,LCEGSA(1)) @ READ THE DATA HEADER BLOCK ( COMMON CEGESA)\r | |
| 44 | IF (FILTER.EQ.0) GOTO 40 @ ONLY ONE FILTER SCAN ALLOWED\r | |
| 45 | WRITE (TTY,2) FILTER @ ' DATA SET ALREADY WITH N POINT FILTER SMOOTHED'\r | |
| 46 | RETURN\r | |
| 47 | 40 CONTINUE\r | |
| 48 | INCR2=INCR/2 @ NUMBER OF DATA POINTS IN POWER SPECTRUM\r | |
| 49 | C\r | |
| 50 | C HERE WE SCAN WITH A 11 POINT FILTER THE POWER SPECTRUM \r | |
| 51 | C\r | |
| 52 | C\r | |
| 53 | CALL MOVE (-11,0,Y)\r | |
| 54 | W=.FALSE.\r | |
| 55 | FFTMAX=0\r | |
| 56 | FFTMIN=5E55\r | |
| 57 | DO 10 I=1,INCR2\r | |
| 58 | J=MOD(I-1,85)\r | |
| 59 | IF (J.NE.0) GOTO 15\r | |
| 60 | IF (W) WRITE (5'REC5) FFTX\r | |
| 61 | W=.FALSE.\r | |
| 62 | READ (5'REC5) FFTX\r | |
| 63 | REC5=REC5-1\r | |
| 64 | 15 CONTINUE\r | |
| 65 | CALL MOVE (10,Y(2),Y)\r | |
| 66 | Y(11)=FFTX(J+1)\r | |
| 67 | FFTX(J+1)=0\r | |
| 68 | DO 16 K=1,6\r | |
| 69 | FFTX(J+1)=FFTX(J+1)+A(K)*(Y(7-K)+Y(5+K))\r | |
| 70 | FFTMIN=AMIN1(FFTMIN,FFTX(J+1))\r | |
| 71 | FFTMAX=AMAX1(FFTMAX,FFTX(J+1))\r | |
| 72 | 16 CONTINUE\r | |
| 73 | W=.TRUE.\r | |
| 74 | 10 CONTINUE\r | |
| 75 | IF (W) WRITE (5'REC5) FFTX\r | |
| 76 | C\r | |
| 77 | C HERE WE SCAN THE BAND INTENSITY\r | |
| 78 | C\r | |
| 79 | W=.FALSE.\r | |
| 80 | DO 30 BAND=1,5\r | |
| 81 | CALL MOVE (-11,0,Y)\r | |
| 82 | CALL MOVE (-11,0,X)\r | |
| 83 | DO 30 I=0,DATCNT-1\r | |
| 84 | PNT=MOD(I,4)+1\r | |
| 85 | IF (PNT.NE.1) GOTO 35\r | |
| 86 | IF (W) WRITE (5'REC5) INTE85\r | |
| 87 | W=.FALSE.\r | |
| 88 | REC5=STSCAN+I/4\r | |
| 89 | READ (5'REC5) INTE85\r | |
| 90 | REC5=REC5-1\r | |
| 91 | 35 CONTINUE\r | |
| 92 | CALL MOVE (10,Y(2),Y)\r | |
| 93 | CALL MOVE (10,X(2),X)\r | |
| 94 | Y(11)=INTE(1,BAND,PNT)\r | |
| 95 | X(11)=INTE(4,BAND,PNT)\r | |
| 96 | INTE(1,BAND,PNT)=0\r | |
| 97 | INTE(4,BAND,PNT)=0\r | |
| 98 | DO 36 K=1,6\r | |
| 99 | INTE(1,BAND,PNT)=INTE(1,BAND,PNT)+A(K)*(Y(7-K)+Y(5+K))\r | |
| 100 | 36 INTE(4,BAND,PNT)=INTE(4,BAND,PNT)+A(K)*(X(7-K)+X(5+K))\r | |
| 101 | W=.TRUE.\r | |
| 102 | 30 CONTINUE\r | |
| 103 | IF (W) WRITE (5'REC5) INTE85\r | |
| 104 | C INSERT THE NEW MIN/MAX INTO THE SECOND DATA HEADER BLOCK\r | |
| 105 | REC5=2 @ READ THE HEADER AGAIN\r | |
| 106 | XMINI=FFTMIN\r | |
| 107 | XMAXI=FFTMAX @ INSERT THE NEW MIN/MAX\r | |
| 108 | FILTER=11 @ 11 POINT FILTER \r | |
| 109 | WRITE (5'REC5) LCEGSA(1),(LCEGSA(I),I=2,LCEGSA(1)) @ WRITE THE DATA HEADER BLOCK ( COMMON CEGESA)\r | |
| 110 | RETURN\r | |
| 111 | C\r | |
| 112 | 20 CONTINUE @ FILE 5 IS EMPTY\r | |
| 113 | COMPUT=0\r | |
| 114 | SAMCNT=0\r | |
| 115 | WRITE (TTO,1) @ NO DATA FOUND\r | |
| 116 | RETURN\r | |
| 117 | C\r | |
| 118 | 1 FORMAT (' KEINE DATEN IN DER DATEI 5')\r | |
| 119 | 2 FORMAT (' LEISTUNGS SPECTRUM BEREITS MIT ',I3,' PUNKT FILTER',\r | |
| 120 | * 'GEGELAETET.')\r | |
| 121 | END\r | |
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