The Study Of "Nose-to-Nose" Calibration Technology For Broadband Sampling Oscilloscope

In this paper, the fundamentaI principle and tasks of calibration of sampling oscilloscopeare introduced at first and the traditional methods of calibration of sampling oscilloscope andtheir probIem are describedThe theory of "nose-to-nose" calibration technology of sampling oscilloscope and thekey signal "kickout" pulse are analyzed from different w8ys and methods in this Paper.Moreovef, the theory of "nosetO-nose" calibr8tion teClinology is Proved for perfeCt andpractica1 sampling circuit model with different methods.Next the Procedure of generation of "kickout" pulse is successfolly simulated withcircuit simuIation software PSpice. Different faCtors that affeCt the waveform of "kick-out"pulse are simulated in detail, and deconvolution of seParating "kickout" Pulse is Presented.Moreover, the factors that affeGt accuracy and Precision of "nose-to-nose" calibfation areanalyzed. and several methods are introduced to imPove itS accuracy Some ideas of buildingexperiment systCm of "nose-to-nose" calibration are ProposedFinally, algorithm of iterative frequency-domain deconvoluhon' criterons andaCquisition of oPtimization Parameers for "nose-to-nose" ca1ibration teChnoIogy areanalyzed.