PrgmUpd

将声音文件在时间轴上分割成几段，分别将段的秩序及某些段内的秩序颠倒，从而实现了对声音文件的加密。首先，先读取一个声音信号，对信号做1024点FFT变换，取完点之后，分成四个向量，四个向量组成一个矩阵，再对每一个向量进行转置，再重新整合，从而就实现了回密的过程。(Sound files on the timeline will be divided into paragraphs, each paragraph of the order and reversed the order of some paragraphs to realize the encryption of sound files. First, the first reading of a voice signal, the signal was 1024 points FFT transform, check after the completion point, divided into four vectors, the four vectors form a matrix, then for each vector transpose, re-integration, which will achieve a return to close the process.)

一个很好用的遗传算法标准程序,很时候初学者使用和应用研究.(a good use of the genetic algorithm standard procedure, very often beginners and applied research.)

Example exercise in C language

基于AWGN通道的4ASK关于ber的仿真(BER Performance of 4ASK in AWGN Channel we study how to use amplitude to carry more digital bits in one data symbol. We use the 4ASK to modulate the signals)

说明：  本例程是离散粒子群算法的实现实例，里面标记了一些不懂的地方，希望能与大家交流(This routine is the implementation of discrete particle swarm optimization example.)

应用于地震勘探来提高信号的分辨率。包含各种处理方法(Used in seismic exploration to improve the signal resolution. Includes a variety of treatment methods)

说明：  这是工业经常用到的模糊自整定的PID，具有很强鲁棒性，而且控制器容易设计(This is a frequently used industrial fuzzy self-tuning of PID, are highly robust, and easy to design controllers)

基于最大似然法则的帧同步仿真程序，包括数据的产生，性能分析。(Law based on the maximum likelihood frame synchronization simulation program, including data generation, performance analysis.)

南海的风速流场，每三度画一个大小为1m/s，方向为45度的流速矢量(Wind flow field the South China Sea, each a third-degree painting of size 1m/s, the direction of the velocity vector of 45 degrees)

说明：  介绍MATLAB语言的一些基本语句，以及基本的编程方法。图形的绘制及GUI。(Introduce some basic MATLAB language statements, and basic programming. Graphics rendering and GUI.)