PCM

循环冗余码的生成和验证:数字通信中的编码分为信源编码和信道编码两大类。为了提高数字通信的可靠性采取的编码称为信道编码，又称抗干扰编码。数字通信中为了尽可能地提高通信的可靠性，需要采用信道编码技术，对可能或已经出现的差错进行控制，CRC码就是其中的一种编码技术。本实验就是编写RCR编码，可以模拟发送信息，噪声加入，检测验证，信息重发的过程!(Cyclic redundancy code generation and validation: digital communication in the coding is divided into source coding and channel coding two broad categories. In order to improve the reliability of digital communications to the code known as channel coding, also known as anti-interference codes. Digital communication as much as possible in order to improve the reliability of communication need to use channel coding techniques, which may or may control the errors that have emerged, CRC code is one of a kind of coding techniques. RCR in this experiment is to write code that can simulate send a message, noise adding, testing verification, information, process re-issued!)

说明：  《变结构控制与MATLAB仿真》书中第二章例五的变结构控制程序( Variable Structure Control and MATLAB Simulation chapter book, five cases of variable structure control procedures)

matlab simulink of pv

there are 5 files. the first two codes are written in Matlab as m-files in control system design to show step responses. in contrast, the final three codes are written in verilog ( Quartus II) used in Altera one of them for BCD adder and the other for four to two bits encoder circuit.

matlab处理指纹图像，由于指纹的唯一性、可靠性和稳定性，指纹已成为身份识别和鉴定的一个重 要标志，并被公认为“物证之首”。指纹识别作为一种生物识别技术，历来受到人们的广泛关注和重视，是未来个人身份认证的重要组成部分。(Fingerprint image processing matlab，Because the uniqueness of fingerprints, reliability and stability,fingerprint identification has become an important symbol of appraisal,and is recognized as the "first" material.The fingerprint identified as a kind of biometrics,has received extensive attention of,the individual identity authentication is the important component.Based on the MATLAB software applications for tools,for fingerprint image preprocessing and feature extraction technology research.Including pretreatment part involves by different methods of fingerprint image segmentation to extract valid area,with the improvement of OPTA thinning algorithm for thinning, )

ISOMAP算法，其中做了部分修改。算法采用K近邻图计算测地距离的方法，最后进行低维嵌入(ISOMAP algorithm, which made some modification.Algorithm of geodesic distance is obtained by using the K neighbor graph method, finally to low dimensional embedding)

用matlab实现的朴素贝叶斯分类源代码，希望对大家有些帮助(Using matlab realize the Naive Bayesian Classifier source code, in the hope that some U.S. help)

单项桥式逆变电路的PWM matlab仿真文件，在 7.0下可运行(Single-bridge inverter circuit of the PWM matlab simulation files, can be run in 7.0)

说明：  基于matlab/simulink环境，对异步电机的一个仿真，能够得到完整的仿真结果，是直接转矩控制的基础部分。(Based on matlab/simulink environment, a simulation of the induction motor, can be a complete simulation results, is a fundamental part of the direct torque control.)

不错的FDTD上手资料，合适光波导研究和其他研究，希望对大家有用。(Good FDTD started information, the appropriate optical waveguide and other studies, and hope to be useful.)