In rotor flux adaptive observers, the influence of flux amplitude tracking error estimate and rotor resistance estimate error in addition to speed tracking error is considered.

磁链自适应观测器中的非线性修正项除考虑转速跟踪误差的影响外，还考虑了转子电阻估计误差和磁链观测误差的影响。

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Nonlinear observers are designed for a class of systems where the nonlinearity of the observer error systems satisfies the general sector condition.

研究了一类非线性系统的观测器设计方法，其中假定观测误差系统中的非线性部分满足一般的扇区条件。

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Some observers have wondered whether the two generals were guilty of an error of judgement in getting involved in the case at all.

BBC: What can David Petraeus teach the Pentagon?