采样策略包括采样点数的选择和传感器间距的设定。
The strategy includes how to choose the sampling Numbers and set the range interval between sensors.
频率估计公式包括采样序列DFT、相位差计算和频率计算。
The set of formulas consists of DFT of sampled data, phase difference calculation and frequency calculation.
该技术的关键是采用多种定时中断，包括采样完成中断、定时采集中断、通信中断、实时多任务中断技术等。
The key points to this technology are the timer interrupt, A/D interrupt, communication interrupt and real time operation.
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