demos

英文文献，主要内容为G.729标准，语音信号的一种传输协议。(English literature, mainly for the G.729 standard voice signal of a transport protocol.)

Rayleigh distribution function of a signal

适合学习三相电网整流到直流的电路，及搭建模块的知识，深刻理解模型及意义(Suitable for studying the three-phase power rectifier to the DC circuit, and to build knowledge of the module, and a deep understanding of the model and significance)

1.matlab实现三种语音处理，有界面 2.C语言实现MFCC 3.报告说明文档 ( 1.Matlab shíxiàn sān zhǒng yǔyīn chǔlǐ, yǒu jièmiàn 2.C yǔyán shíxiàn MFCC 3. Bàogào shuōmíng wéndàng 1.matlab achieve three voice processing, interface 2.C language MFCC 3 report documentation)

由于小波及小波包技术可以将信号或图像分层次按小波基展开，所以可以根据图像信号的性质以及事先给定的图像处理要求确定到底要展开到哪一级为止，从而不仅能有效地控制计算量，满足实时处理的需要，而且可以方便地实现通常由子频带、层次编码技术实现的累进传输编码（即采取逐步浮现的方式传送多媒体图像）。这样一种工作方式在多媒体数据浏览、医学图片远程诊断时是非常必要的。另外，利用小波变换具有放大、缩小和平移的数学显微镜的功能，可以方便地产生各种分辨率的图像，从而适应于不同分辨率的图像I/O设备和不同传输速率的通信系统。相比之下，利用KL变换进行压缩编码，只能对整幅图像进行；而利用小波变换则能够比较精确地进行图像拼接，因此对较大的图像可以进行分块处理，然后再进行拼接。显然，这种处理方式为图像的并行处理提供了理论依据。 (As the little affected wavelet packet technology can signal or image stratified by wavelet and so on according to the nature of the image signal and the image processing requirements given in advance exactly sure on to what level, and so far not only can effectively control of calculation and meet the needs of the real-time process, and can be easily realized by sub-band usually coding technology, levels of the realization of the progressive transmission (that is, take gradually emerged coding the way multimedia image transfer). Such a way of working in multimedia data browse, medical image remote diagnosis is very necessary. In addition, by using wavelet transform has amplification, narrowing the mathematics of peace move microscope function can be easily produce all sorts of resolution image in order to adapt to different resolution in )

粒子追踪测速的相关程序，所使用的算法为最邻近原则，通过粒子链表形成匹配(Particle tracking velocimetry procedures, the algorithm used for the nearest neighbor principle formed by particles linked list match)

convolutional coding matlab仿真代码，仅供参考(convolutional coding matlab simulation code, for reference only)

图像加密程序，基于混沌系统的MATLAB实现(Image encryption, chaotic systems based on MATLAB to achieve)

Particle Swarm Optimization

很多通信系统的matlab程序,便于修改调用，欢迎使用！(many communications systems Matlab procedures to facilitate changes called Welcome!)