The-demystify-of-MATLAB7

code matlab for differential evolution

09年大学生数学建模比赛D组题，该作品获得专科组国家二等奖(2009 Mathematical Modeling Group D title game, the work received the second prize specialist group of countries)

信号处理－滤波器设计（基于matlab和Mathmatica的设计方法）中关于无乘法器椭圆IIR滤波器设计的原创程序。(Signal processing- filter design (based on matlab and Mathmatica design method) on the elliptical without multiplier original IIR filter design procedures.)

说明：  文主要目的是针对讯号频谱分析仪(Signal spectrum analyzer)做功能测试，以确定讯号频谱分析仪之各种运算功能正确，其中测试共 分为正弦与余弦波检查、反假象滤波器检查(Antialiasing Filter Check)、频率响应函数与相位角检查(FRF & Phase Check)、自身能量密度函 数检查(Power Spectrum Check)、动态范围检查(Dynamic Range Check)等五个项目的快速傅立叶转换检查(Fast Fourier Transform Check)，并 对五个项目之测试原理、测试步骤及测试结果加以说明，提供频谱分析仪功能测试之正确方法，亦可作为自制频谱信号处理单元及频谱分 析程式之验证。(The main purpose of the text is for the signal spectrum analyzer (Signal spectrum analyzer) to do functional testing, to determine the signal spectrum analyzer features a variety of computing the right, which is divided into sine and cosine test wave inspection, anti-false filter inspection (Antialiasing Filter Check), the frequency response function and phase angle of inspection (FRF &amp Phase Check), its energy density function check (Power Spectrum Check), dynamic range checking (Dynamic Range Check) and other five projects FFT check (Fast Fourier Transform Check ), and principles of the five test items, test steps and test results to show that the spectrum analyzer to provide the proper testing method may be used as self-spectrum signal processing unit and the spectral analysis of the verification.)

利用matlab绘制半圆球的三维曲面图，源程序代码，(Matlab draw the ball using the three-dimensional semi-circular surface diagram, source code)

pitch esimation material

小波分析变换在轴承故障诊断中的应用，利用小波变换检测是否有轴承外环故障。(Wavelet analysis Transform in bearing fault diagnosis using wavelet transform to detect whether there is a bearing outer ring failure.)

HHT变换matlab程序 在matlab下运行即可，可以修改各种参数，采样点数，各种电能质量原始信号均由程序所得，可以信号叠加而来。比如电压跌落，谐波，暂时上升，中断等。 例子给出的是 电压暂降。(HHT transform matlab matlab program can be run in, you can modify various parameters, sampling points, a variety of power quality of the original signal by the program proceeds, may signal superimposed from. Such as voltage drop, harmonics, temporary rise interruption. The example given is voltage sags.)

采用重心法求坐标，在C#中调用了matlab中的函数，对于想学C#和matlab混合编程很有好处(using coordinates for the center of gravity method in C# Calling a function of Matlab, For, like C# and Matlab programming very good mixed)

内模控制实现程序 基于MATLAB2010a环境下实现(Implement procedures based on internal model control environment to achieve MATLAB2010a)