sim_-comm_system

一本matlab入门书籍的附带程序文件，很丰富，对于matlab初学者来说很有用！(A matlab entry books attached program files, very rich, very useful for matlab beginner!)

《MATLAB GUI设计学习手记(第2版)》在第1版的基础上，完善了全书知识结构，突出了gui设计重点，对读者经常遇到的38个问题作了透彻的解答，并提炼出13个专题作了详尽的介绍。(MATLAB GUI design Learning Notes (2nd Edition) " on the basis of the first edition, improve the structure of the book knowledge, highlighting the GUI design focus, made a thorough answers to 38 questions that readers often encountered and extract 13, made a detailed introduction to the topic.)

Code contains MATLAB code of Spectrum Subtraction algorithm for reducing noise from noisy speech signal.

这是一个数字图像处理的matlab仿真程序，效果比较好(This is a digital image processing matlab simulation program, the effect is better)

MATLAB时频工具箱，比较完整，欢迎大家下载(Time-frequency MATLAB toolbox, relatively complete, welcome everyone to download)

PLS部分最小二乘工具箱,基于SVPWM的三电平逆变的matlab仿真，遗传算法无功优化。( PLS PLS toolbox, Based on SVPWM three-level inverter matlab simulation, Genetic algorithm based reactive power optimization.)

实现线性动态系统模型的Arma模型，具有处理动态纹理建模的功能。(dynamic textures are seqences of images showing spatial regularity,temporal continuity.)

in this program I have simulated GSRP method for reducing dimension of iris data.

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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，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，A律和μ律编码都已被定为国际标准。 本程序实现了A律、μ律以及均匀量化三种PCM，并带有GUI界面，方便使用。可以计算编码后的码率、运行时间以及最小均方误差。(Pulse Code Modulation (PCM, Pulse Code Modulation) is an analog voice signal into digital signal encoding, from the mathematical point of view, the process is to quantify the magnitude of the value of an infinite number of continuous mapping into a discrete set of the limited range of values number set, code is 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, A law and μ-law code have been designated as international standards. A law implemented in this program, μ law and the uniform quantization of three PCM, with a GUI interface, easy to use. Encoded bit rate can be calculated, running time and minimum mean square error. )