利用最小二乘算法自适应跟踪正弦信号时间序列，通常用于分析谐波信号。-Using the least squares algorithm adaptive tracking sinusoidal signal time series, usually used to analyze the harmonic signal.

Cosinor analysis uses the least squares method to fit a sine wave to a time series. Cosinor analysis is often used in the analysis of biologic time series that demonstrate predictible rhythms. This method can be used with an unequally spa