IEEE Transactions on Automatic Control, Vol.56, No.5, 1213-1219, 2011
A Hybrid Robust Non-Homogeneous Finite-Time Differentiator
A variant of super-twisting differentiator is proposed. Lyapunov function is designed and an estimate on finite time of derivatives estimation is given. The differentiator is equipped with hybrid adaptation algorithm that ensures global differentiation ability independently on amplitude of the differentiated signal and measurement noise.