### HT_SINE - Hilbert Transform - SineWave > 函数名：HT_DCPHASE 名称： 希尔伯特变换-正弦波 NOTE: The ``HT_SINE`` function has an unstable period. ```python sine, leadsine = HT_SINE(close) ``` Learn more about the Hilbert Transform - SineWave at [tadoc.org](http://www.tadoc.org/indicator/HT_SINE.htm).