时间序列数据分析中的梅林变换工具，对信号进行频谱分析及滤波，双向PCS控制仿真，快速扩展随机生成树算法，一种噪声辅助数据分析方法。-Time series data analysis Mellin transform tool, The signal spectral analysis and filtering, Two-way PCS control simulation, Rapid expansion of random spanning tree algorithm, A noise auxiliary data analysis method.