neural-network-analysis

教程示范，如何数学建模，以及解非线性方程组(Tutorial example, how mathematical modeling and nonlinear equations)

主元分析中对主元的个数确定目前没有非常好的办法,这里提供一个比较方便实现的matlab程序,利用累计方差贡献率确定主元个数的matlab程序(Principal component analysis of main elements to determine there is no good way, here to provide a more convenient realization of the matlab program, using the cumulative variance contribution rate to determine the number of principal components of the matlab program)

It is the matlab code for denoising an EEG signal using adaptive algorithm. Moreover, the code also explains the performance difference between IIR and FIR comapared to adaptive techniques

产生服从Gamma分布的噪声可真难啊，呵呵... 产生服从Gamma分布的噪声可真难啊，这个函数费了我好久的力，才理解并实现。写在这里吧。 (Gamma distribution subject to the noise generated can be sad to say ah, huh, huh ... obey the Gamma distribution of the noise generated may be sad to say ah, this function took a long time the power I only understand and implement. Write it here.)

本程序画出了时间序列下的各变量变化图，得到混沌性质，从而在区域内对变量进行取值，达到模拟出混沌的目的(This procedure draws the time series of each variable changes in plans, the chaotic nature, and thus in the region of variable values, to simulate the purpose of Chaos)

一个50行的Matlab有限元程序（二维线弹性问题），执行fem2d.m即可。(A 50-line Matlab finite element program (two-dimensional linear elastic problem), Executive fem2d.m .)

说明：  FLAMES平台中的空域模型之一，对空间划分有借鉴意义(FLAMES airspace model in one platform, a reference to the space division)

随机产生二进制序列，进行128QAM调制，画出星座图，通过加性高斯白噪声的信道，再画星座图，并计算误比特率。(128QAM modulate with MATLAB)

基于红外图像的弱小目标检测与跟踪，非常实用的检测小代码(Small target detection and tracking based on infrared image, very practical detection of small code)

This was used at the 2004 Cyber Summer Camp This program hides a message image in the lower bit planes of a cover image