Title :
Discrete frequency-domain modeling and measuring of mild nonlinearity of Volterra transfer functions with a set of special sinusoid signals
Author :
Zhang, Ping ; Song, Yamin
Author_Institution :
Dept. of Telecommun. Eng., Beijing Univ. of Posts & Telecommun., China
Abstract :
A method for measuring first/second Volterra kernels in the frequency domain is given. For the case where the input signal is a superposition of many sinusoids, the Volterra modeling of a nonlinear system in a discrete frequency domain is given. Using this model and carefully choosing input frequencies, one can measure the first/second Volterra kernels at many points simultaneously. A computer algorithm is proposed, and simulation results that show the efficiency of this method, are given.<>
Keywords :
computerised signal processing; frequency-domain analysis; nonlinear systems; transfer functions; Volterra modeling; Volterra transfer functions; computer algorithm; discrete frequency domain modelling; first Volterra kernel; input frequencies; input signal; measurement; nonlinear system; nonlinearity; second Volterra kernel; simulation results; sinusoid signals; superposition; Discrete Fourier transforms; Frequency measurement; Kernel; Laplace equations; Steady-state; Transfer functions;
Conference_Titel :
Communications, Computers and Signal Processing, 1989. Conference Proceeding., IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC, Canada
DOI :
10.1109/PACRIM.1989.48422
