中文说明： 该源码提供了一种固有时间尺度分解方法，用于时间序列的分解。 itd为函数最外层，输入为时间序列，和分解类型，对于不同类型和不同输入参数个数来区别调用； boundary_conditions为边界效应区分函数； ItdBaseDecomp(x)为计算主函数，分解输入的时间序列。
English Description：
Inherent time scale the source provides a decomposition method for time series decomposition. ITD is a function the outermost entered as time series and type of decomposition for different types and with different input parameters to differentiate between invocation; Boundary_conditions for boundary effects differentiated functions; ItdBaseDecomp (x) as the main function, input time series.