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对OFDM的载波频偏进行估计和补偿，采用ML最大似然估计算法，有不同频偏值和不同信噪比的仿真结果图。(For OFDM carrier frequency offset estimation and compensation, using ML maximum likelihood estimation, have different values and different SNR offset simulation results shown in Fig.)

本文提出了基于二维混沌映射的数字图像水印算法，混沌具有随机性、似噪声及对初始条件的极端敏感性等特点。将经过二维混沌映射置乱后的数字水印信号嵌入图像小波域的低频系数，实现了数字水印的隐蔽性、保密性和稳固性；利用二维混沌映射Arnold变换对水印信号进行置乱，不仅增强了水印信号保密性，同时有效提高了视觉上抵抗图像剪切攻击的能力(failed to translate)

说明：  简单的模糊控制器（Fuzzy Controller）的simulink仿真！(The simulation of fuzzy logic controller (Fuzzy Controller)!)

测量三维显示包，可以绘制等高线，三维显示等开发未完成(Measuring three dimensional display, development is not complete)

1．编写一个程序，读取一句英语短语，并将其编制成莫尔斯码 莫尔斯码是世界上最著名的编码机制，是1832年由Samuel Morse创立的，用于电报系统使用。莫尔斯码编码规则如下：①字母、数字和一些特殊符号（如圆点、逗号、分号）用一系列指定的点和线表示；②单词之间用三个空格分开，没有点和线；③编码字母之间用一个空格。 (1 write a program to read a word, English phrases, and programmed into the Morse code Morse Ma is the encoding mechanism of the world s most famous, is in 1832 by the Samuel Morse foundation, used for telegraph system. Morse coding rules are as follows: ① letters, numbers and special symbols (such as dot, comma, semicolon) is represented by a series of specified points and lines the words are separated by three spaces, no point and line the code letters with a space. )

it s knn implementation by using toolbox matlab

精通MATLAB综合辅导与指南 精通MATLAB综合辅导与指南(Proficient in MATLAB comprehensive guide to counseling and comprehensive guidance and proficient in MATLAB Guide)

说明：  平面拟合,采用ransac算法，对空间中的离散点进行平面或直线拟合(plane fitting Plane fitting, using RANSAC algorithm, to fit discrete points in space in plane or straight line)

基于matlab，利用信息熵法排序。例子为对学校进行排序(Based on matlab, using information entropy ordering. Examples of the sort of school)

主要面向工程设计人员，涉及的知识不但包括软件应用，还包括专业基础知识，是机械，电子领域技术人员的最佳参考书(Primarily for engineers, the knowledge involved, including not only software applications, including professional knowledge, machinery, electronics technicians the best reference books)