An approximate non-minimum phase transfer function of magnetic suspension bearing is established, on the basis of that, a closed-loop controller is designed and makes the whole system stable.

建立了磁浮轴承的近似非最小相位传递函数模型，并基于此模型设计了保证系统稳定的闭环控制器。

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In the feedforward ANC, when the traditional FXLMS algorithm is applied directly, non-minimum phase(NMP) of the secondary-path transfer function will lead to the performance degradation.

在前馈有源噪声控制中，由于次级通道传递函数往往是非最小相位系统，直接使用传统的FXLMS算法时，导致系统的性能下降。

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