A nonlinear robust controller is proposed for a class of single input single output time-delay nonlinear systems with system uncertainty.

针对一类带有不确定性的单输入单输出的时滞非线性系统，提出了一种鲁棒非线性控制算法。

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The fuzzy system is used to approximate the system uncertain function, and the fuzzy system function obtained is taken as system uncertainty boundary function.

利用模糊系统对不确定性函数进行逼近，将获得的模糊系统函数作为系统不确定性界函数。

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This paper realizes disturbance de-coupled with model error and system uncertainty by using a combination of full-order nonlinear unknown input observer and fault detection filter.

该文设计了全维非线性未知输入观测器，实现检测滤波器对于被控对象模型误差和系统不确定性因素的干扰解耦。

youdao

This spares banks from immediately recognising their losses, but it leaves a fog of uncertainty over the system.

ECONOMIST: Economics focus

An inherently complex and noisy system is always wracked with uncertainty.

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There should be no uncertainty in the system.

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