ZOOM-FFT

DG Placement optimization in 33-bus and 69-bus distribution power systems using Imperialistic Competition optimization algorithm.

说明：  最近看到有人提问怎样用FFT实现频谱分析，我认为能够进行到频谱分析的人，对于系统研究的深度基本上已经相当不错了。本人今天做了一个例程，发给大家参考一下。 历程主要内容(signal_analyzer.rar)如下： test1.txt 第一列为时间t，0.001s为步长；第二列为系统的输入信号；第三列为系统的输出信号。 signal_analyzer.m首先将test1.txt 的数据读入workspace，然后进行FFT，分析出两信号的频率，输出对于输入的幅值衰减（db），输出对输入的相位差。(The question was asked recently to see the realization of how to use FFT spectral analysis, I think that spectral analysis can be carried out to those who study the depth of the system basically is already quite good. Today I made a routine, distributed to Members for reference. The main contents of the course (signal_analyzer.rar) are as follows: test1.txt the first time as t, 0.001s for the step the second as the system input signal the third as a system output signal. signal_analyzer.m first test1.txt data read into workspace, and then proceed to FFT, analysis of the two signal frequency, output amplitude for input attenuation (db), the output of the input phase difference.)

image retrieval,content based image retrieval

FilterTitleOverlay字幕叠加的filter(FilterTitleOverlay subtitles superimposed filter)

Matlab通信系统仿真及实例详解，讲解了通信系统原理，Matlab仿真(Matlab Communication System Simulation and example explanation to explain the principles of communication systems, Matlab simulation)

采用伪随机原理产生有窗口特性的彩色编码图,对于研究三维重建的朋友有用,采用matlab编写,请多多指教!QQ:526289(using pseudo-random produced a window characteristics of color-coded map, three-dimensional reconstruction of useful friends, prepared using Matlab Please excuse us! QQ : 526289)

用于转子故障振动，采集信号后，用小波包方法对振动信号进行频谱分析，比傅立叶变换更细化。(Spectrum analysis of vibration signal by wavelet packet method)

Find peaks in signal. Look for local maxima and minima. In the window of search find the maximum maxima and the minimum minuma. Return two values which are the maximum and the minimum local maximas

fisher分类，matlab实现。fisher分类，matlab实现(fisher，matlab)

刘宝碇老师的不确定理论工具箱，matlab程序(Uncertainty Theory teacher Liu anchor kit, matlab program)