dct1

matlab环境下实现电阻抗成像的源程序(matlab environment realize the source electrical impedance tomography)

Biosignal and biomedical image processing书第二章的源码(Biosignal and biomedical image processing source code for the book chapter)

说明：  用matlab实现的fp树。目的是发现频繁项集，但是本代码只是实现了fp树(Fp tree with a matlab implementation. Aim is to discover frequent itemsets, but only realized the fp tree code)

Fast computation of the fractional Fourier transform,

語音信號是基於時間軸上的一維數位信號，在這裏主要是對語音信號進行頻域上的分析。在信號分析中，頻域往往包含了更多的資訊。對於頻域來說，大概有8種波形可以讓我們分析：矩形方波，鋸齒波，梯形波，臨界阻尼指數脈衝波形，三角波，餘旋波，余旋平方波，高斯波。對於各種波形，我們都可以用一種方法來分析，就是傅立葉變換：將時域的波形轉化到頻域來分析。(Voice signal is based on the timeline of one-dimensional digital signal, where mainly the speech signal in frequency domain analysis. In signal analysis, frequency domain often contains more information. For the frequency domain for about 8 allows us to analyze waveforms: rectangular square wave, sawtooth, trapezoidal wave, the critical damping index pulse, triangle wave, I spin wave, I spin square wave, Gaussian. For all waveforms, we can analyze in a way that is Fourier transform: the transformation of time domain waveform into the frequency domain to analyze)

文件中包含一个用matlab simulink搭建的光照强度模型和一个画出不同月份某一天光照强度随时间变化曲线图的matlab脚本程序。(File contains a model of the light intensity with matlab simulink to build and a month to draw different light intensities a day versus time graph matlab script.)

说明：  《信号与系统》计算机练习－利用matlab 西安交通大学出版社 实验三("Signals and systems" computer exercises-using Matlab Xi'an Jiaotong University Press Experiment 3)

Matlab Fuzzy k-Nearest Neighbor 分类算法(Fuzzy k-Nearest Neighbor Classification Algorithm)

说明：  对cstr进行模型建立，并进行线性化，求出其状态方程和阶跃响应(Model the cstr and linearize it to find its state equation and step response.)

可实现微电网中分布式电源的下垂控制，采用三环控制策略，节点既可作为V/f结点，也可作为PQ结点(It can achieve distributed generation droop control in Microgrid, which uses three-loop control strategy. The node can be used as V/f node, the node can also be used as PQ node)