Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1718482 | Aerospace Science and Technology | 2012 | 10 Pages |
Abstract
In this paper, a continuous finite-time-convergent differentiator is presented based on a strong Lyapunov function. The continuous differentiator can reduce chattering phenomenon sufficiently than normal sliding mode differentiator, and the outputs of signal tracking and derivative estimation are all smooth. Frequency analysis is applied to compare the continuous differentiator with sliding mode differentiator. The beauties of the continuous finite-time-convergent differentiator include its simplicity, restraining noises sufficiently, and avoiding the chattering phenomenon.
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Physical Sciences and Engineering
Engineering
Aerospace Engineering
Authors
Xinhua Wang, Hai Lin,