کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
559494 | 1451887 | 2012 | 18 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Rapid-convergent nonlinear differentiator Rapid-convergent nonlinear differentiator](/preview/png/559494.png)
A nonlinear differentiator being fit for rapid convergence is presented, which is based on singular perturbation technique. The differentiator design can not only sufficiently reduce the chattering phenomenon of derivative estimation by introducing a continuous power function, but the dynamical performances are also improved by adding linear correction terms to the nonlinear ones. Moreover, strong robustness ability is obtained by integrating nonlinear items and the linear filter. The merits of the rapid-convergent differentiator include the excellent dynamical performances, restraining noises sufficiently, avoiding the chattering phenomenon and being not based on system model. The theoretical results are confirmed by computer simulations and an experiment.
Journal: Mechanical Systems and Signal Processing - Volume 28, April 2012, Pages 414–431