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16QAM is good use for students

MACH Kernel Implementation

DES function for the encryption of DES,use matlab to make it possible,first input in the function is plaintext ,second one is key,and last is to choose encrypt or decrypt

NEGF method to calculate the resonant tunnelling diode

结构分析的有限元法与MATLAB程序设计，讲述了结构有限元分析的原理，以及编程设计方法(FEM structural analysis and design of the MATLAB program, about the principles of finite element analysis, design and programming)

This is an example of PLL demo

其中，子目录《数字信号处理题解及电子课件》_MATLAB程序包含了完成该书的习题参考答案时所用到的MATLAB程序，直接运行这些程序可给出相应习题参考解答的结果。用MATLAB编写的程序的名称由“ex”开头，接下来是所在的章、习题序号及该习题中MATLAB程序的序号，如ex_01_06_1，指的是第1章第6题的第1个程序。(Among them, the subdirectory " digital signal processing solutions and electronic courseware title" _MATLAB The book contains a complete reference to answer the exercises used by the MATLAB program, these programs can be run directly gives a reference to answer the result of exercise. MATLAB program with the name written by the " ex" at the beginning, followed by the host of the Chapter, and the number of exercises exercise program in MATLAB serial number, such as ex_01_06_1, refer to Chapter 1, Article 6, paragraph 1 of the title process .)

是用matlab编程实现PSK的很好例子，(Matlab programming is a good example of PSK,)

预处理的源定位 ------------------------------------- 各种脚本用于处理源定位中使用的时间数据。 Time2Frames.m mutilchannel时间数据转换为频谱帧 Time2TF.m 时间数据转换为相对传递函数的帧到通道1。 Frames2R.m 频谱帧转换为（freqeuncy而定）的协方差矩阵。 R2C.m 转换协方差矩阵噪声子空间（用于音乐）。 Clean_Source.m 从协方差矩阵中删除第n个最强的源极（S）。(Preprocessing for source localization ------------------------------------- Various scripts for processing time data to be used in source localization. Time2Frames.m Converts mutilchannel time data to spectral frames Time2TF.m Converts time data to frames of transfer function relative to channel 1. Frames2R.m Converts spectral frames to (freqeuncy dependent) covariance matrices. R2C.m Converts covariance matrices to noise subspace (for MUSIC). Clean_Source.m Removes the nth strongest source(s) from the covariance matrix.)

说明：  实现多种粒子群算法，可对多种方法参数进行优化。希望采纳。(To achieve a variety of particle swarm optimization algorithm, a variety of method parameters can be optimized. Hope to adopt.)