colap.zip

一个数据预处理过程中消除多项式趋势项的程序(this is a program about eliminating polynomial trend)

实现数值分析中单纯形法改进方法的matlab代码，即改进单纯形法算法，能够实现大型稀疏矩阵的迭代，代码分为三分。这是2/3..(Numerical analysis to achieve improved method simplex method matlab code that modified simplex method algorithm, to achieve large sparse matrix iteration, the code is divided into thirds. This is the 2/3 ..)

用来求时间序列的分形盒维数，简单方便有效，亲测可用。(we can use this program to caculate the boxdimension.)

The model used for creating the reference voltage is shown in Fig. 4. First, photovoltaic output current (Ipv) and output voltage (Vpv) are passed through a first order low pass filter with a magnitude of G = 1 and a time constant of T = 0.01 seconds in order to filter out the high frequency components or harmonics from these signals as shown in Fig. 5 and Fig. 6. The filtered current and voltage signals (Ipv_F and Vpv_F) are then fed into the MPPT control block that uses the Incremental Conductance Tracking Algorithm. An algorithm that is based on the fact the slope of the PV array power curve shown in Fig. 7 is zero at the Maximum Power Point (MPP), positive on the left of the MPP, and negative on the right. The MPP can thus be tracked by comparing the instantaneous conductance (I/V) to the incremental conductance (∆ I/∆ V) [11] as in (1):

此程序由matlab实现,用于对语音信号的功率谱密度进行估计.希望能有所帮助.(this procedure from Matlab realized, for the speech signal power spectral density estimation. hope to be helpful.)

用MATLABF仿真FP腔的传输特性，包括损耗，折射率以及半径对传输特性的影响(FP transmission based on MATLAB)

基于均值量化的小波域音频水印，完成水印的添加和提取，以及水印的性能量化计算(Wavelet domain audio watermarking)

Code to run the Non-negative Matrix Factorization algorithm as presented in the Lee, Seung 1999 Nature paper.

希尔伯特变换中的经验模态分解，可对其进行局部分解，采样分解以及求取希尔伯特谱(The empirical mode decomposition, Hilbert transform its partial decomposition, sample decomposition strike Hilbert spectrum)

THE GEOMETRY OF ALGORITHMS WITH ORTHOGONALITY CONSTRAINTS