Operation Error and Error Variation 操作误差和变异度
The proposed method only requires the flux linkage of the permanent magnet and is insensitive to parameter estimation error and variation.
这种方法只需要确定永磁磁链。 且对参数估算的误差及变化不敏感。
The ramp metering rate is determined by the PID controller whose parameters are tuned by fuzzy logic according to the density tracking error and error variation.
斜坡根据密度跟踪误差和误差变化情况，通过模糊逻辑对控制器参数进行调整，确定了测量速度。
If this compass variation or error is not compensated for, a navigator could find himself far off course and in deep trouble.
如果指南针偏差或错误没有正确补偿，一个航海家会发现他自己偏离航程太远和麻烦太大。
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