说明：  原上载过一个LMSTDE，适用于两个信号在时域上不重叠，而本程序的两个信号在时域上重叠的，并以正弦波作为例子加以说明，求出延迟时间。
(The original upload a LMSTDE, apply to the two signals, which in the time domain do not overlap, and this process two signals are overlapped in time domain and a sine signal as an example, is calculated for delay time.)