The asymptotic tracking or the attainment of zero tracking error in the steady-state which is robust with respect to the plant parameters can be accomplished with the robust two DOF.

鲁棒二自由度控制结构还能实现对于对象参数具有鲁棒性的稳态零误差跟踪。

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The fuzzy adaptive controller designed based on this method can guarantees that the closed-loop system is globally stable and the tracking error converges to a neighborhood of zero.

在此基础上设计的模糊自适应控制器能够保证整个闭环系统稳定且跟踪误差收敛到零的一个邻域内。

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Zero phase error tracking controller was served as the feed-forward controller to improve the fast tracking performance of the system, thus exactly tracking of the system was implemented.

零相位误差跟踪控制器作为前馈跟踪控制器，提高了快速性，使系统实现准确跟踪。

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The demand from consultants and clients for zero tracking error drives him to a sub-optimal solution.

FORBES: Getting Over Index Investing With A Better Way

In order to achieve zero tracking error, the fund manager must hold exactly the index for every second of the day.

FORBES: Getting Over Index Investing With A Better Way

Zero tracking error trumps total return as the performance standard.

FORBES: Getting Over Index Investing With A Better Way