Title :
Volterra kernel estimation for mildly nonlinear amplifiers
Author :
McRory, J.G. ; Johnson, R.
Author_Institution :
TRLabs, Calgary, Alta., Canada
Abstract :
The linear, third and fifth order Volterra kernels for two mildly nonlinear amplifiers have been estimated using common RF laboratory equipment. The estimation is made through a series of least square curve fits between measured data and nonlinear transfer functions. The estimation is validated through the comparison between measured and predicted IM3 distortion levels.
Keywords :
electric distortion; intermodulation; least squares approximations; nonlinear network analysis; radiofrequency amplifiers; transfer functions; 850 MHz; IM 3 distortion levels; RF laboratory equipment; Volterra kernel estimation; fifth order Volterra kernels; least square curve fits; linear Volterra kernels; mildly nonlinear amplifiers; nonlinear transfer functions; third order Volterra kernels;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19931338
