matlab_signal

matlab liziqun shenjingwangluo gaijin(matlab liziqun shenjingwangluo)

Power flow studies, commonly known as load flow, form an important part of power system analysis. They are necessary for planning, economic scheduling and control of an existing system as well as planning its future expansion. The problem consists of determining the magnitudes and phase angle of voltages at each bus and active and reactive power flow in each line. In solving power flow problem, the system is assumed to be operating under balanced conditions and a single-phase model is used. Four quantities are assumed at each bus. These are voltage magnitude v, phase angle  , real power P, and reactive power Q.The Newton Raphson method of load flow analysis is an iterative method which approximates the set of non-linear simultaneous equations to a set of linear simultaneous equations using Taylor’s series expansion and the terms are limited to first order approximation.

利用有限差分方法求解二维泊松方程的Matlab源代码。z轴作为参数扫描的自由度。(Finite difference method for solving two-dimensional Poisson equation Matlab source code. z axis as a parameter scanning freedom.)

MATLAB应用大全一书的配书光盘第二十章源代码,该文件夹收录了本书涉及的源文件。收录了一些优秀应用实例信息，便于读者学习了解。(MATLAB application of a book chapter 20 CD attached with books source code, this folder contains the book files. Includes some excellent examples of application information, convenient for readers to learn. )

说明：  自己做的一个Matlab小时钟，可以自己更换背景图片，供大家互相学习(This is a samll clock based matlab,you can change the background by yourself.Hope your enjoy about it!)

利用matlab的gui设计的带有输入和输出功能的界面图形，实现等距线可视性很强，自己独立编写的数据和图形，学习非常值得,实现svm压缩图像，c语言(Using GUI of MATLAB to design interface graphics with input and output functions, realizing the visibility of isometric line is very strong, the data and graphics written independently by oneself are very worthwhile to learn, realizing SVM compressed image, C language)

说明：  使用DFT做频率估计的matlab仿真编程程序(Frequency Estimation Using DFT)

说明：  对信号的边际谱分析,三维能量谱分析以及时频分析的有关程序.......(Spectral analysis of the marginal signal, three-dimensional power spectrum analysis and time-frequency analysis of the procedure .......)

利用大津算法对焊点图像进行分割，去除多余噪声(Solder joint image segmentation using Otsu algorithm to remove the excess noise)

非局部中值滤波 matlab代码,主要用于图像去噪，对于存在周期出现的图像有较好的效果，例如干涉图(Nonlocal median filter matlab code. It is mainly for image denoising and images with the existence of cycles are correspinding to good results, for example interferogram.)