Ignition

matlab最常用，最实用的程序代码，初学者必须要掌握的。重要！！！(matlab most commonly used and most useful code, beginners need to master. Important! ! !)

说明：  提出了一种改进高阶Butterworth低通滤波器性能的设计方法。首先对高阶Butterworth低通滤波器的极点 进行重新分布，得出改进型Butterworth低通滤波器。性可以由其在基波电压初相位为零时的特性所唯一确定(Periodic voltage and current waveforms on the start time of its corresponding harmonic component of the relationship between the initial phase of research, pointed out that the characteristics of harmonic sources can be its initial phase in the fundamental zero-voltage characteristics of the CD a definite)

code for cognitive radios

基于Buck调压的高频高压 除尘电源的研究 (Research on high-frequency high-voltage inverter power supply for electrostatic precipitator based on Chopper )

这是一个用matlab做的人脸识别系统，里面包含了几十张人脸数据图像，值得一荐(This is a matlab to do with Face Recognition System, which contains dozens of Zhang Face image data, it is worth sacral)

《matlab7从入门到精通》是一本很经典的入门级教科书，文件中包含了书中所有源码(" Matlab7 From Novice to Professional" is a classic entry-level textbook, the book file contains all the source code)

This program lets you put one image into the same voxel space as another image. E.g. you might want to extract a Brodmann area from the brodmann.img file that comes with MRIcro, and then put that set of 1x1x1mm voxels into the same voxel space as your functional data, which probably covers a smaller volume and has larger voxels. Then you can use the Brodmann area as an ROI to explore your functional results.

periodogram method for power spectrum estimation

：滤波 fs=400 采样频率,必须大于两倍基带信号最高频率 ts=1/fs 采样时间间隔 T=5 时间窗大小 t=0:ts:T (hf1=zeros(1,N) hf1(f<=B1&f>=-B1)=1 y1=hf1.*fftshift(y) figure subplot(211) plot(f,abs(fftshift(y))/N,f,hf1, r-- ) axis([-fs/2,fs/2,0,1.2]) title( 原信号频谱 ) xlabel( f /Hz ) subplot(212) plot(f,abs(y1)/N) title( 低通滤波，截止频率90Hz ) xlabel( f /Hz ))

星座运势预测，用matlab写的，选择自己的星座运行即可。(Horoscope by matlab)