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this is a simpliest example to testing unit root

gauss seidel program

1．通过实验加深对快速傅立叶变换（FFT）基本原理的理解。 2．了解FFT点数与频谱分辨率的关系，以及两种加长序列FFT与原序列FFT的关系。 离散傅里叶变换（DFT）和卷积是信号处理中两个最基本也是最常用的运算，它们涉及到信号与系统的分析与综合这一广泛的信号处理领域。实际上卷积与DFT之间有着互通的联系：卷积可化为DFT来实现，其它的许多算法，如相关、滤波和谱估计等都可化为DFT来实现，DFT也可化为卷积来实现。(1. Deepen the experimental fast Fourier transform (FFT) the basic tenets of understanding. 2. Understand the FFT spectrum and points of the resolution, and two extended sequence with the original FFT FFT relations. Discrete Fourier Transform (DFT) and the convolution of two signal processing is the most commonly used basic arithmetic, they relate to the signal and system analysis and synthesis of the wide range of signal processing field. DFT actually convolution and interoperability between contact : DFT into convolution can be achieved in many other algorithms, If relevant, filtering and spectral estimation could be achieved as DFT, DFT into convolution can be achieved.)

本程序适用于论文A Cyclic Weighted Median Method for L1 Low-Rank Matrix Factorization with Missing Entries(this code is for A Cyclic Weighted Median Method for L1 Low-Rank Matrix Factorization with Missing Entries)

PID控制系统 对于系统的非线性 超调量 震荡等不稳定因素有很好的控制(PID control system for the nonlinear overshoot shocks and other uncertainties have very good control)

说明：  转速、磁链闭环控制的矢量控制交流调速。控制电路是由滞环脉冲发生器、电流变换与磁链观测的封装模块、比例放大器模块、函数模块、常数模块（用于额定转速和转子磁链信号的给定）、转速调节器ASR、转矩调节器ATR、磁链调节器APR、以及三二变换器模块。(Vector Control AC Speed Regulation with Closed Loop Control of Speed and Flux Link)

说明：  实现BP神经网络建模，并绘制误差曲线，包括实现数据的归一化与反归一化(Achieve BP neural network modeling and rendering error curve, including data normalization and anti-normalization)

快速ica算法，对于独立分离分析研究应用的一种有效算法。(ICA matlab code)

matlab新手入门学习基础以及熟练精通掌握(matlab beginners to learn basic and proficient proficient)

说明：  从别的地方下载的一个源文件，PLL希望能帮到你(Download from somewhere else, a source file, PLL hope you can help)