FFT

pca图像融合原代码，功能能很强大,很实用(nice pca code )

This is the matlab simulation of Semi-Controlled DC Motor.

神经网络在matlab上的实现的源代码，本程序可用于分类问题(Matlab neural network to realize the source code, the procedure can be used for classification problems)

在信号处理中，信号发射时，信号通过载波，调制，以电磁波的形式发射出来 在接收端，射频信号通过天线接收，超外差式等方式进行处理，变频到中频 然后通过数字技术对中频信号进行处理，此时的中频信号采样率很高，多达几十兆赫 而要解调出来的信号很小，此时就要经过滤波来得到我们需要的信号 如果直接设计滤波器，阶数会非常庞大，软件，硬件设备都承受不了 因此，一般常用的技术是进行下变频处理，其主要技术就是通过抽取滤波进行下变频 常用的滤波器就是CIC抽取, 希望可以帮助一些坛友解决基本的问题。 (In signal processing, signal emission, signal through the carrier, in the form of electromagnetic wave modulation, launched In the receiver, rf signals through the antenna, specialized superheterodyne type means such as processing, the frequency conversion to intermediate frequency Then through digital technology of intermediate frequency signal processing, at this time of intermediate frequency signal sampling rate is very high, as many as several decades MHZ But the signal demodulation out is very small, at this time would be passing filter to get what we need signal If design directly filter, order number be colossal, software, hardware equipment all suffer Therefore, the technology is usually used for down-transducer processing, its main technical is by extracting filtering down-transducer Commonly used filter is CIC extraction, the hope can help some friends solve basic problems of the altar.)

说明：  潮流计算节点电压功率，潮流网损 输入格式 节点总数 PQ节点数 PV节点数 支路数 变压器支路数 （数据） 节点 P Q （PQ节点） ... ... .... 节点 P V （PV节点） ... ... .... 节点 V o（相角°） （平衡节点） 节点一 节点二 电阻 电抗 半电纳 (普通支路) ... ... .... ... ... 节点一 节点二 电阻 电抗 变比标幺值 （变压器支路，阻抗归 ... ... .... ... ... 算到节点一一侧）(Power flow calculation,including node voltage power and power flow network loss.)

EKF, IEKF, and UKF算法在matlab中的实现(EKF, IEKF, and UKF method implementation)

This is a matlab clas file for non-holonomic ground robot. Inputs are: 1. Set of way-points [x y] 2. Controller gain 3. Linear velocity Out put 1. control commands [linear and angular velocities]

backwardfoeward load flow for distribution network

说明：  电力系统配电网重构，IEEE33节点，电力系统潮流计算优化(Distribution Network Reconfiguration of Power System)

实现数字图像盲水印的嵌入,利用变换域的方法。(realize the input of the blind watermark.)