ofdmusingmatlab

MATLAB code for filter design for Qnm format

lu分解发解方程组 输入矩阵大小范围 小于10 采用地迭代法完成(lu decomposition made solving system of equations)

构造了一个无尺度的复杂网络,并计算出了其聚类系数的值(Construct a complex scale-free networks, and calculate the value of its clustering coefficient )

共振解调法诊断轴承损伤类故障的原理概述如下:当轴承某一元件表面出现局部损伤时，在受载运行过程中要撞击与之相互作用的其它元件表面，产生冲击脉冲力，由于冲击脉冲力的频带很宽，必然包含轴承外圈、传感器甚至附加的谐振器等的固有频率而激起这个测振系统的高频固有振动。根据实际情况可以选择某一高频固有振动作为研究对象，通过中心频率等于该固有频率的带通滤波器把该固有振动分离出来。然后进行包络解调，去除高频衰减振动的频率成分，得到只包含故障特征信息的低频包络信号，对这一包络信号进行频谱分析便可以容易地诊断出轴承的故障来。(The principle of resonance demodulation method in the diagnosis of bearing damage such failure overview is as follows: when the bearing surface of a local damage, in the process of loading operation to hit with other elements of the interaction of surface, impact pulse power, due to the impact pulse frequency band is very wide, inevitably contains the bearing outer ring, sensors and even additional resonator and stir up the natural frequency of the vibration system of the high frequency vibration mode.A high frequency vibration mode can be selected according to actual situation as the research object, through the center frequency is equal to the natural frequency of the bandpass filter to separate the natural vibration.Then envelope demodulation, frequency components to remove the high frequency vibration attenuation, get only includes fault feature information of low frequency envelope signal, the envelope signal spectrum analysis can be easily diagnosed bearing failure.)

很好很实现的matlab工程绘图命令的讲解资料(Is to achieve a good command matlab engineering drawings to explain the information)

否定选择算法(Negative selection algorithm)

流形学习，局部线性嵌入式算法(LLE)，一种智能的算法去推测捕捉高维空间中所包含的低维特征。与适合于局部维数约减的聚类算法不同，LLE算法在单一的低维的全域坐标系统中表征采样空间，然而它并没有优化最小局域。通过对线性重构的局域对称的研究应用，LLE能够描述非线性流形的全局结构，例如那些人脸的数据集或者文本文档集(Manifold learning, embedded local linear algorithm (LLE), an intelligent algorithm to predict capture high-dimensional space contained in the low-dimensional features. And for local dimensionality reduction of the different clustering algorithms, LLE algorithm in a single low-dimensional characterization of the global coordinate system, the sampling space, but it does not optimize the local minimum. Reconstructed by the local symmetry of the linear study of the application, LLE can describe the global structure of nonlinear manifolds, such as those who face data sets or text document collection)

a model with matlab...

说明：  本书系统介绍MATLAB遗传算法和直接搜索工具箱的功能特点、编程原理及使用方法。全书共分为9章 第一章至第四章介绍遗传算法的基础知识第五章至第七章介绍英国设菲尔德大学的MATLAB遗传算法工具箱及其使用方法 第八章和第九章介绍MathWorks公司最新发布的MATLAB遗传算法与直接搜索工具箱及其使用方法(This book systematically introduce MATLAB Genetic Algorithm and Direct Search Toolbox features and how to use programming principle. Chapter book is divided into 9 chapters I to IV to introduce the basics of genetic algorithm to Chapter VII of Chapter V introduced the University of Sheffield MATLAB genetic algorithm toolbox and its use of Chapter VIII and IX MathWorks introduced the company The latest release of MATLAB Genetic Algorithm and Direct Search Toolbox and its use)

用小波变换处理并分析成人心电信号，包含matlab实现程序(ECG analysis)