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this used in dvb-t system

说明：  电力系统潮流的计算机辅助分析 本课题要求对一14节点的电力系统分别使用MATLAB和PSASP软件进行潮流计算及分析，其具体要求如下： 1）用MATLAB实现对该系统的潮流计算。需要MATLAB语言编制程序形成节点导纳矩阵、形成雅克比矩阵、用高斯消去法解修正方程式，并编写输出程序用以输出节点导纳矩阵、节点电压（包括电压的相角和幅值）、以及各支路的首端功率、末端功率和功率损耗，然后调式并在MATLAB运行环境下运行程序输出结果，再将结果制成表格。(Computer Aided Analysis of Power Flow)

code for sorting image gray levels

DC to DC buck converter, with control loop.

光学模拟劈尖干涉的程序，可以用于教学模拟等场合。(optical wedge interference simulation procedures can be used for teaching simulation occasions.)

仿真了FM信号产生和调制的过程，方法简单，内容详尽，已经过调试。(Simulation of the FM signal and modulation process, the method is simple, detailed, has been testing.)

16进制转浮点的SIMULINK模型。 希望对大家有用！(16 SIMULINK model of binary floating point turn. Hope to be useful!)

matlab principal component analysis, PCA算法.(matlab principal component analysis, PCA algorithm.)

K均值算法描述： 给定类的个数K，将N个对象分到K个类中去， 使得类内对象之间的相似性最大，而类之间的相似性最小。(K-means algorithm described: a given number of classes K and N objects assigned to the K-th class, so that objects within the class of the similarity between the maximum, while the similarity between the minimum class.)

kalman滤波，扩展的kalman滤波（EKF），unscented Kalman filter（UKF），基于EKF和UKF混合模型的IMM实现，以及配套的Rauch-Tung-Striebel和two-filter平滑工具，一个很好用的框架(Kalman filtering, extended Kalman filtering (EKF), unscented Kalman filter (UKF), IMM implementation based on EKF and UKF hybrid models, and supporting Rauch-Tung-Striebel and two-filter smoothing tools, a very useful framework)