Petri网原理与应用

二维快速小波变换分解与重构；融合规则是区域能量加权；融合图像评价，包括清晰度、信息熵等(2-D fast wavelet decomposition and reconstruction Area Energy weighted fusion Image fusion uation, including definition, information entropy, etc)

利用matlab通过包络谱与能量谱诊断轴承内外圈故障，并附有内外圈的故障数据，适合初学者。(By using matlab spectrum and energy spectrum envelope bearing inner ring fault diagnosis, fault data together with inner and outer rings, suitable for beginners.)

将年月日时分秒转换为某一基准年开始的总秒数(The date(YYYY，MM，DD，hh，mm，ss) is converted to a base year of the total number of seconds.)

利用PSO算法优化求解PID参数,已发表文章,效果很好(Use of PSO algorithm for solving PID parameters, has published an article very good)

说明：  利用Matlab仿真脉冲编码调制（PCM）及A律、μ律PCM对声音进行压缩编解码过程。 脉冲编码调制（PCM，Pulse Code Modulation）是一种将模拟语音信号转换成数字信号的编码方式。波形编码器的作用是对采样后的信号样本进行量化和编码。从数学上来看，量化过程就是把一个连续幅度值的无限数集合映射成一个离散幅度值的有限数集合，编码就是用一组二进制数来表示这些映射后的有限数。国际标准化的PCM采用折叠二进制码，符合长途电话质量。根据量化方法的不同，PCM可分为均匀量化PCM和对数PCM两大类，对数PCM中，2Aμ律和律编码都已被定为国际标准。(Matlab simulation using pulse code modulation (PCM) and the A law, μ law PCM codec for voice compression process. Pulse Code Modulation (PCM, Pulse Code Modulation) is an analog voice signal into digital signal encoding. The role of the encoder waveform is sampled signal sample quantization and coding. From the mathematical point of view, the process is to quantify the magnitude of the value of a continuous set of infinite number of maps into a finite number of discrete set of amplitude values​ ​ , encoding is to use a set of binary digits, said after a limited number of these maps. By folding the International Standardization of PCM binary code, in line with long-distance telephone quality. According to the different quantitative methods, PCM can be divided into uniform quantization PCM PCM and the number of two categories, on the number of PCM in, 2Aμ law and legal codes have been designated as international standards.)

这是一个LDA主题模型的matlab代码，可进行中文模糊聚类分析，内涵说明，可直接使用。(This is a topic LDA model matlab code, can be Chinese fuzzy clustering analysis, meaning that can be used directly.)

code matlab for mimo system

Empirical mode decomposition algorithm with some optimization

小数据量法计算Lyapunov指数的Matlab程序(Small amount of data calculated Lyapunov index Matlab procedures)

说明：  MATLAB7的官方学习手册。全英文的哦。详细的教程，值得一读。(MATLAB7 official study manual. Oh, the whole of English. Detailed tutorial, worth reading.)