IDENTIFICATION OF NONLINEAR CASCADE SYSTEMS WITH TIME-VARYING BACKLASH

Jozef Vorös

   Recursive identification of cascade systems with time-varying input backlash and linear dynamic system is presented. A new analytic form of backlash characteristic description is used, hence all the parameters in the cascade model equation are separated and their estimation is solved as a quasi-linear problem using the recursive least squares method with internal variable estimation. Simulation studies are included.

Keywords: nonlinear systems, backlash, cascade systems, recursive identification, time-varying systems

[full-paper]