Code-nonlinear-equa

matlab环境下，函数的傅立叶变换和反变换(matlab environment, the function of the Fourier transform and inverse transform)

基于MATLAB的夫琅禾费衍射演示。通过将衍射屏做成二值图并进行FFT变换得到衍射谱。(MATLAB-based Fraunhofer diffraction demonstration. Diffraction screen made by binary image and diffraction pattern for FFT transform. )

data for EEG Epileptic

说明：  BCH 编解码的MATLAB 实现。BCH码是一类重要而有效的纠正多个随机错误的循环码，由于该码具有严格的代数结构，所以是到目前为止研究得最为详尽、应用最为广泛的一类码，已有多种译码算法。(BCH codec of MATLAB. BCH is a kind of important and effective redress the wrong number of random cyclic code, as the code strictly algebraic structure, it is so far the most detailed study in, the most widely used type of a code has a variety of decoding algorithm.)

说明：  高光谱各个谱段的相关性系数 correlation coefficient of highspectral image(correlation coefficient of highspectral image)

这是进行小波边缘检测的程序，用matlab编程，小波比其他算子具有一定的优势。(This is the wavelet edge detection procedure, using matlab programming, wavelet than other operators have certain advantages.)

对文献《Simulation Models With Correct Statistical Properties for Rayleigh Fading Channels》提出的Rayleigh信道模型的仿真，仿真了信道的自相关，互相关，以及四阶统计量。仿真结果与文献一致。目前PDF的仿真的效果不好，还未奉上。关于LCR,AFD也没有做。但是总体说来，目前的仿真结果与文献是完全符合的。对应的文献也放到压缩包了。(This matlab code for paper, <Simulation Models With Correct Statistical Properties for Rayleigh Fading Channels>.This papar is very popular in channel estimation simulation.The paper is also upload with the code.)

振动理论中的中心差分法求解单自由度问题，希望对大家有帮助(Vibration theory of central difference method to solve the problem of a single degree of freedom, we want to help)

Fingerprint Recognition Using Minutiae-Based Features

实现二进9/7小波变换的一个例子，对深入理解小波变换有帮助。(into achieving two 9/7 wavelet transform an example, in-depth understanding of wavelet transform help.)