58542 VXIbus Universal Power Meter
A-34
Publication 21555, Rev. E, September 2002
940
Corr_freq=St(I-1)*(Stop_freq-Strt_freq)/(Swep_pnts-1)
! Corr_freq is freq corresponding to Clf_corr(I)
950
FOR K=1 TO No_cal_pnts
! Find next highest and lowest Cal Factor
! frequency from Corr_freq
960
IF Freqs(K)>=Corr_freq THEN
970
Next_higher_f=Freqs(K)
980
Next_higher_clf=Clfcs(K)
990
Next_lower_f=Freqs(K-1)
1000
Next_lower_clf=Clfcs(K-1)
1010
K=No_cal_pnts
1020 !
1030
END IF
1040
NEXT K
1050
F_delta_multpl=(Corr_freq-Next_lower_f)/(Next_higher_f-Next_lower_f)
! Multiplier for next formula
1060
Corr_clf(I)=Next_loF_delta_multpl*(Next_higher_clf-Next_lower_clf)
! Interpolates the Cal Factor Value
1070
PRINT Corr_freq,Corr_clf(I)
1080 NEXT I
1090 !
1100 ! Set the source for swept operation
1110
!
1120 PRINT Configuring Gigatronics 7200 Microwave Sweeper.
1130 OUTPUT @Sweeper,HP
! Set Giga-tronics 7200 to HP emulation mode
1140 OUTPUT @Sweeper;OPFA;Strt_freq
1150 OUTPUT @Sweeper;OPFB;Stop_freq
1160 OUTPUT @Sweeper;FC;Tim_per_pnt*Swep_pnts;MS
1170 !
1180 ! Perform Measurement in Burst Mode or Swift Mode for Fast measurements.
1190 ! Shared Variables may include Sweep_pnts and Tim_per_pnt
1200 !
1210 GOSUB Burst_mode_swp
! Goes to the swept frequency, Burst/Swift Mode Data
! acquisition subroutine
1220 !
1230 ! Data comes back in from Burst Mode-or Swift Mode-as rdgs(*). Always in log units, dBm.
1240 !
1250 MAT Rdgs_corr=Rdgs+Corr_clf
! Array math function that adds the measurement
! data to the cal factor array
1260 !
1270 GOSUB Output_data
! Output to screen graph, printout, file, etc.....
1280 !
1290 END
Содержание 58542
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