MELP-PPT

MATLAB图像处理与识别实用案例精选，很实用的工具 简单易懂(MATLAB image processing and recognition of practical case selection, it is useful tool for easy-to-read)

电机及拖动教科书的直流电机的固有机械特性及人为机械特性，配合教科书讲课用的MATLAB的源程序，绝对好用，用时，将WORD文件复制的MATLAB里即可。(failed to translate)

1. 程序中Turbo译码采用了MAP,LOG-MAP，和MAX-LOG-MAP三种算法。 2. 以xxx开头的四个mat文件是四种给定的Turbo码在译码时用到的参数，保存下来的目的是 加快仿真的速度，如果你所仿真的Turbo码不是程序中列出的任意一种，你可以通过函数 trellis来生成自己的相关参数。 3. 程序支持1/2和1/3两种码率的Turbo码，其中1/2码率的Turbo码通过矩阵[1 0 0 1]打 孔得到。在译码时通过对打孔位置添0恢复成1/3码率的码字。 4. 程序中的信噪比表示Eb/N0，通过此参数求得N0，对发送信号进行加噪。(1 program in Turbo decoding using the MAP, the LOG-MAP, and three kinds of the MAX-LOG-MAP algorithm.)

Matlab compackt 2013 whole book

A polyalphabetic cipher is any cipher based on substitution, using multiple substitution alphabets. The Vigenère cipher is probably the best-known example of a polyalphabetic cipher, though it is a simplified special case.Polyalphabetic substitution ciphers are useful because the are less easily broken by frequency analysis, however if an attacker knows for instance that the message has a period n, then he simply can individually frequency analyze each cipher alphabet. The number of letters encrypted before a polyalphabetic substitution cipher returns to its first cipher alphabet is called its period. The larger the period, the stronger the cipher. Of course, this method of encryption is certainly not secure by any definition and should not be applied to any real-life scenarios.

数字信号处理中粒子滤波方法 (The Particle Filtering Methodology in Signal Processing)

说明：  对雷达信号处理中的恒虚警检测和动目标显示进行了仿真，对需要理解恒虚警检测的同学很有帮助(The CFAR detection in radar signal processing is simulated)

火电厂主汽温系统扰动消除设计方法,很有用的文献(Main Steam Temperature System Disturbance canceling design, useful literature)

通信里的2ASK信号的产生及分析，很不错，经典实用(Communication in the 2ASK signal generation and analysis, very good, classic and practical)

基于子空间的波束形成算法，主要利用信号子空间投影的原理(Subspace-based beamforming algorithm, the main use of the principle of the signal subspace)