如何检测信号或时序数据中的正弦模式？

I need to detect sine patterns in time-series data. Data includes small oscillations and a few numbers of sine patterns. What I need is [Start Time, End Time] of sine pattern.

如果您引入任何算法，我将不胜感激。 另外，如果该算法已在python库中实现，请指导我。