Based on the dynamic balancing of rigid rotors, an integral digital tracking filter method is put forward for fundamental frequency detection.

以刚性转子现场动平衡为背景，提出了用于基频检测的积分型数字跟踪滤波法。

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A digital tracking filter method is put forward, its approach realizing adaptive tracking ability is simple and easy, and good effect of noise cancellation can be obtained.

提出了数字跟踪窄带滤波方法，实现的自适应跟踪方法简便，消噪效果良好。

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