optimizationusingmatlab

说明：  利用低通滤波器进行横条纹滤除，效果可以，最好进行一下后期处理，效果会更好。(Use of horizontal stripes of low pass filter filter, the effect can be desirable to look at post-processing, the effect will be better.)

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.

指纹识别预处理、匹配的全部过程，matlab程序(All pretreatment process fingerprint identification, matching, matlab program)

主要是对逆变器低电压穿越控制策略的研究的介绍(Low voltage ride through control strategy of inverter)

qpsk modulation in matlab

说明：  用matlab实现了通信中经常用的卷积编码，并对其性能进行了分析(Matlab implementation of the communication with the regular use of convolutional coding and its performance is analyzed)

用于本科大四毕业风力机气动设计工作，采用改进的Wilson设计方法(Used for pneumatic design of graduated wind turbine)

自适应系数的过渡过程比较与分析（基于LMS和RLS算法比较）。(adaptive coefficient of the transition process comparison and analysis (based on the LMS and RLS algorithm).)

CT iradon transform-image recon(CT radon transform-image recon)

this program is cryptosystem use RSA