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A comprehensive behavioral model of Track-and-Hold Amplifier (THA) based on GaAs HBT, implemented in MATLAB-SIMULINK platform, is presented in this paper. The main error sources of the holding capacitor and non-linear on-resistance are investigated, and the relative non-idealities are modeled. With the behavioral model, SIMULINK simulations were performed to analyze the non-ideal error sources and...
In view of the problems that exist in the current grain emergency alert classification in grain emergency plan, an improved fuzzy pattern recognition method based on Fuzzy-AHP to determine weight was adopted. The Fuzzy-AHP was applied in weight calculation of gain emergency early warning standard and in order to avoid error based on one specialist's judgment, averaged weights were put to use. The...
The beam propagation factor and kurtosis parameter of broadband Gaussian shell-model beams propagating in free space are studied numerically based on the intensity moments. The effects of spectral bandwidth and spatial correlation length on these two parameters are analyzed. The beam propagation factor or kurtosis parameter of beams with broader spectral bandwidth and smaller correlation length becomes...
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