Title :
A nonlinear adaptive digital filter
Author :
White, S.A. ; Vitols, V.A.
Author_Institution :
Rockwell Int. Corp., Anaheim, CA, USA
fDate :
1/1/1988 12:00:00 AM
Abstract :
An adjustable, memoryless, single-valued, monotonic nonlinearity is introduced between the output point of a linear adaptive FIR (finite-impulse response) filter and the output point of the system. A control strategy is derived that permits the simultaneous shaping of both the power spectrum and the amplitude-density function of the system output by jointly adjusting the shape of the nonlinearity and the tap weights of the linear filter. A mechanization diagram and some mechanization considerations are presented
Keywords :
digital filters; amplitude-density function; control strategy; finite-impulse response; linear filter; memoryless single-valved nonlinearity; monotonic nonlinearity; nonlinear adaptive digital filter; power spectrum; simultaneous shaping; system output; tap weights; Circuits and systems; Convolution; Digital filters; Finite impulse response filter; Nonlinear distortion; Nonlinear filters; Random variables; Shape control; Signal processing; Transversal filters;
Journal_Title :
Circuits and Systems, IEEE Transactions on
