并采用跟踪-微分器对信号进行了滤波。
The scheme also adopts tracking differentiator to filter the signal.
证明了一种阶线性跟踪-微分器的收敛性。
An N-order tracking differentiator is put forward, then its convergence is proved.
同时用非线性跟踪-微分器代替差分法来提取微分信号，提高了微分信号的品质。
Meantime, differential signal is distilled by nonlinear tracking-differentiator instead of the method of difference, which improves the quality of differential signal.
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