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Using Matlab to solve some engineering problems

自己编的，基于自然梯度的盲源分离算法，如果想对自然梯度有所了解，可以参考Amari的经典文章。网络上一搜就行。(own series, based on the natural gradient algorithm blind source separation, if you want to understand the natural gradient. Amari can refer to the classic article. Networks found on a trip.)

msk的调制解调MATLAB源代码，很不错，值得看看(msk modulation and demodulation MATLAB source code, very good, worth a look)

This is guide in matlab that get cm1-cm9 channel model and plot 7 figure such as power delay profile,excess delay, etc.

说明：  简单混合衰落信道 This mfile inputs an unmodulated sinewave through a simple Rayleigh two path fading channel and shows the output with phase, gain, and attenuation characteristics via animation. (simple mixed fading channel This mfile inputs an unmodulated sinewave through a simple two path Rayleigh fading channel and shows the output with phase, gain, and attenuation characteristics via animation.)

Speech processing and dynamic time wraping codes

matlab工具箱（统计工具箱函数 优化工具箱函数 样条工具箱函数 偏微分方程数值解工具箱函数 ）(Matlab Toolbox (Statistics Toolbox function optimization toolbox function spline function PDE Toolbox Numerical Solution Toolbox functions))

说明：  hu的7个不变矩 内涵两种算法 用于matlab 生成m文件(The seven invariant moments hu)

说明：  如果厚度为5mm的物质对500nm光的折射率为1.4，对600nm光的折射率为1.5，画出500nm与600nm光同时照射时候观察屏上的强度分布 对牛顿环进行模拟(Newton ring analog if a thickness of 5mm substances on the refractive index of light of 500 nm is 1.4, the 600nm light refractive index of 1.5, draw 500nm and 600nm light irradiation when the intensity distribution on the viewing screen )

阵列天线多端口的馈电操作。在进行波束赋形或相控阵天线设计时，若天线端口数量巨大，可以用该程序一次实现对所有天线端口相位及赋值的输入。(Multi-array antenna feed port operations. Performing beamforming or phased array antenna design, if the huge number of antenna ports can be used to implement the program once all the input phase and the antenna port assignment.)