plotATM

通信的数字化是它能与计算机技术和数字信号处理技术相结合的基础，而实现通信数字化的前提是信源能提供的各种用于传递的消息，例如语音、图像、数据、文字等都必须以数字化形式表示。而信源编码是数字通信系统中的重要组成部分，他是保证信号有效传输的一种重要方式。霍夫曼编码依据字符出现的概率来构造异字头的平均长度最短的码字，有时称之为最佳编码，其优越的性能被广泛使用在数字通信系统中。霍夫曼编码已经成为数据压缩的灵魂算法。本文介绍了无失真编码算法的构造，霍夫曼编码的规则和特点，同时分析了对信源进行优化的方法，最后通过MATLAB仿真来讨论比较二元霍夫曼编码、三元霍夫曼编码以及信源扩展编码的效率，来实现霍夫曼码的优化构造。(The digital communication is it can and computer technology and digital signal processing technology in combination of the base, and realize the digital communication is the premise of source can provide all kinds of used to deliver news, such as voice, video and data and text must take the digital form said. And the source coding digital communication system is the important component, he is to ensure the effective transmission signal is an important way. Huffman coding based on the probability of characters appear to construct different "the average length of the shortest code words, sometimes called the best coding, superior performance is widely used in digital communication system. Huffman coding has become the soul of data compression algorithm. This paper introduces the structure of the encoding algorithm without distortion, Huffman coding rules and characteristics, and analysis of the source of the optimization method, and finally by MATLAB simulation to discuss compares two yu)

matlab 傅里叶变换 图像的傅里叶变换，利用快速傅里叶进行图像的频率分析然后画出图形(Matlab Fourier transform The Fourier transform of the image and of the image by using the fast Fourier frequency analysis and then draw the graphics)

本程序利用MATLAB仿真在不知道信道状态信息的情况下，利用差分编码和差分接收计算误码率的程序(MATLAB simulation of the procedures used in the does not know the channel state information of the case, the use of differential encoding and differential receiver bit error rate calculation process)

说明：  卡尔曼滤波器是用前一个估计值和最近一个观察数据估计信号的值，他是用状态方程和递推的方法进行估计，本例用来追踪一个5阶的FIR不确定的滤波器系数。(Kalman filter is to use the previous estimate and the most recent observation data to estimate the value of the signal, he is using the state equation and recursive estimation methods, in this case is used to track a 5-order FIR filter coefficients of uncertainty.)

The “INVERTED PENDULUM, ANALYSIS, DESIGN AND IMPLEMENTATION” is a collection of MATLAB functions and scripts, and SIMULINK models, useful for analyzing Inverted Pendulum System and designing Control System for it. This report & MATLAB-files collection are developed as a part of practical assignment on Control System Analysis, Design & Development practical problem. The assigned problem of INVERTED PENDULUM is a part of Lab Work of Control System – III Course at the INSTITUTE OF INDUSTRIAL ELECTRONICS ENGINEERING (IIEE), KARACHI, PAKISTAN

说明：  语音的语谱图绘制，MATLAB实现，可调参数(Speech Spectrogram rendering, MATLAB implementation of adjustable parameters)

说明：  经典遗传算法工具箱中的最大代数终止程序，与大家分享(classical genetic algorithm toolbox the largest algebra termination of the procedure, to share with you)

PCA和KPCA，对于故障检测与诊断有很好的监控效果，希望对你有用(PCA and KPCA, for fault detection and diagnosis have a good monitoring of effects to be useful to you)

说明：  使用matlab的霍夫曼编码简单实例，输入包括给定概率表和字符串输入，输出包括编码后的结果和，解码后结果(Huffman encoding matlab use a simple example, the input comprising a given probability table and string input, output, including the results of encoded and decoded Results)

本辞典实例精心筛选，短小精悍、针对性强是一本掌握和精通MATLAB编程的使用手册。适合于各类进行MATLAB计算和开发的工程人员和研究人员查询使用。(This dictionary carefully selected examples, small, targeted is a master and the use of MATLAB programming manual. It is suitable for all kinds of engineers and researchers for MATLAB calculation and development.)