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4.14.24.34.44.54.6z---------------------YY(a)YXvxXYbYXYXc12vyvxYxTTn=XTTyn=7/8(a)(b)21122111sinsinθθθθ=vvvv21122111sinsinθθθθ=vvvv2112211AAAGGGGKvvvvvvvvY,Y1v/6v6DCdirectcoupledACAlternatingcoupledDCACDC50-3dB=20log(Vdisp/Vinput)Vdisp=0.7Vinput1090tr(s)=0.35/BW(Hz)BWtrtr(ns)=350/BW(MHz)s/1kHz1ms/1kHz200s/XXDCAC(Levelpp)HFLFTVX-Y,::“”“”1.4.3.1:9999999“”9.9.1.2.3.22)(/pVpVDIVHDIVVOLTSpVp−=×=−VOLTS/DIV0.5VVp-p=3.70.5=1.85V()()()/×=S4-8)(1)(sTHzf=“SEC/DIV”X10DIV10/)()(×=DIVSECNHzf“”“”()()/×=()DIV°=360“”“”“”4.5DigitalStorageOscilloscopes-DSO······/·1.2/ADC“”“”3/ADC=2s/9110249=s//9=1/51251250512/50=10.24=50=1/ADC100MS/s=50=50/=50/100106=500ns/(Shannon)Aliasing31121MEASURE23CH145CH16CH17CH1-4.6y“”1.2.