code3

模式分类的Matlab工具箱，各种实用算法(Pattern classification of the Matlab toolbox, various practical algorithm)

qrs detection in ECG signals

Optimization methods using matlab

sar图像去噪的几种新的方法，到达过程是的泊松过程，ML法能够很好的估计信号的信噪比。( Several new methods sar image denoising, Arrival process is a Poisson process, ML estimation method can be a good signal to noise ratio.)

说明：  EM 算法是Dempster，Laind，Rubin于1977年提出的求参数极大似然估计的一种方法，它可以从非完整数据集中对参数进行 MLE估计，是一种非常简单实用的学习算法。这种方法可以广泛地应用于处理缺损数据、截尾数据以及带有噪声等所谓的不完全数据，可以具体来说，我们可以利用EM算法来填充样本中的缺失数据、发现隐藏变量的值、估计HMM中的参数、估计有限混合分布中的参数以及可以进行无监督聚类等等。(EM algorithm is a method for maximum likelihood estimation of parameters proposed by Dempster, Laind and Rubin in 1977. It can estimate parameters from incomplete data sets by MLE. It is a very simple and practical learning algorithm. This method can be widely used in dealing with the so-called incomplete data such as defective data, censored data and noisy data. Specifically, we can use EM algorithm to fill missing data in samples, find hidden variable values, estimate parameters in HMM, estimate parameters in finite mixed distribution, and so on. Unsupervised clustering and so on.)

说明：  一个完整的OFDM通信系统，采用16QAM调制，设置不同的信噪比，得到误码率(A complete OFDM communication system adopts 16QAM modulation, sets different SNR, and gets bit error rate)

说明：  用MATLAB编程实现半导体光放大器（SOA）的ASE噪声特性分析，可以计算半导体光放大器的载流子密度，ASE增益，噪声指数，主要用的是半波逼近法来实现数值算法。(Programming with MATLAB semiconductor optical amplifier (SOA) of the ASE noise characteristics analysis, semiconductor optical amplifiers can calculate the carrier density, ASE gain, noise figure, the main use is half-wave approximation method to achieve the numerical algorithm.)

4D interpolation for large data table

很好用的matlab蚁群算法，已经调试过可以使用(Good use of Matlab ant colony algorithm, debugging can use)

简单的人脸识别代码，如果是其他图片的话，放在当前文件下，修改一下文件名即可。(Face Recognition simple code, if it is the other picture, then on the current file, the file name can be changed a bit.)