face_rec

turbo码编解码，可用于3G LTE链路仿真，我用在2010年中兴程序设计大赛的，绝对可用(turbo encoding and decoding, can be used for 3G LTE link simulation, I use ZTE 2010 Programming Contest, absolutely free)

基于matlab的神经网络训练方法，其中采用不同的隐层，自己编写的，实现多类数据的分类(It ia a code to learn network.)

说明：  针对给定信号采用不同的经典功率谱估计方法进行信号的谱估计，性能不错！(For a given signal using different classical power spectrum estimation methods for signal spectrum estimation, performance, good!)

MATLAB从入门到精通 书上源代码，人民邮电出版社(MATLAB books from the entry to the master source code, Posts & Telecom Press)

Matlab的流程控制语句，掌握循环结构。 Matlab的脚本文件、函数文件编写。 Matlab脚本文件、函数文件的调试。 (Matlab flow control statements, control loop structure. Matlab script file, the function document preparation. Matlab script files, function files debugging.)

灰色预测模型的代码,很简洁，很有用。大家只用打开改一下就可以了(Gray prediction model code, very simple, very useful. We only change it can be used to open a)

Table Of Integrals, Series And Products (7Ed , Elsevier, 2007 Gradshteyn I , Ryzhik 1220S),非常实用的积分手册！(Table Of Integrals, Series And Products (7Ed , Elsevier, 2007 Gradshteyn I , Ryzhik 1220S)

说明：  基于局域法多步预报模型的混沌时间序列预报模型，对多个典型混沌序列的仿真测试表明，本算法具有良好的多步预测精度和较好的抗噪声能力(based multi-step prediction model of chaotic time series prediction model, a number of typical chaotic sequence of simulation tests show that the algorithm has a good multi-step forecast accuracy and better noise immunity)

通过设置不同的参数利用Matlab软件仿真了不同场景下的系统性能 (This document suggests a user’s guide to a MATLAB application which simulates a Spatial Channel Model (SCM) based on reference [1] with some minor adjustments. It focuses on how to use the Graphical User Interfaces (GUIs) and the functions of the application and avoids going into specifics about the nature of the parameters as this is done analytically in the reference document)

ML gradient computation g = grad_ml(X,x,r) g = gradient vector X = matrix for receiver positions x = 2D position estimate r = TOA measurement vector sigma2 = noise variance vector