With mathematical definition of increment function observer is based on nonlinear controlled system, so application of observer can be able to extend nonlinear control field.

由于增量式函数观测器的数学定义是建立在非线性受控系统的基础上，因此，观测器的应用便可扩展到非线性控制领域。

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With mathematical definition of increment function observer is based on nonlinear controlled system, so application of observer can be able to extend nonlinear control field.

由于增量式函数观测器的数学定义是建立在非线性受控系统的基础上，因此，观测器的应用便可扩展到非线性控制领域。

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