A frequency tracking method is proposed.The synchronism sampling is achieved to improve the measuring precision of frequency and phase difference. 本文提出一種頻率跟蹤方法，可以在不過零開始採樣的情況下，實現整周期採樣，保證頻率和相位差測量的精度。
This paper introduces a full period sampling method based on the resampling technology used in the sampling of rotor system vibration signals. 介紹了一種應用重採樣技術的旋轉機械振動信號的整周期採樣方法。
