中文说明：计算多重分形非趋势波动分析，采用偏最小二乘法，研究生时的现代信号处理的作业，采用了小波去噪的思想，实现串口的数据采集，信号处理中的旋转不变子空间法。
English Description：
The idea of calculating the multifractal detrended fluctuation analysis, using partial least squares method, a graduate student of modern signal processing operations, using wavelet denoising, to achieve the serial port data acquisition, signal processing in the rotation invariant subspace method.