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PCM
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.)
- 2011-04-14 12:06:33下载
- 积分：1
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06480907
WINDTURBINE DFIG STATCOM
- 2014-01-27 10:36:01下载
- 积分：1
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floyd
应该已经非常优化的floyd程序。简短、运行时间短、简单易理解。初学者亦可理解。实现任意两点间的最小距离和路径(Floyd should have a very optimized program. Short run time is short, simple and easy to understand. Beginners can understand. To achieve the minimum distance between any two points and path)
- 2010-07-18 19:00:50下载
- 积分：1
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noise_let_Measurements
这是一个实值的Noiselet变换，压缩感知的图像应用中的的Noiselet观测矩阵 (1) This implementation uses exactly m*log2(m) additions/subtractions.
2) This is a real-valued variation of "dragon" noiselets.
3) This is symmetric and orthogonal. To invert, apply again and divide by m.)
- 2010-10-22 10:51:04下载
- 积分：1
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x3
communication papers about mimo
- 2014-01-30 13:42:56下载
- 积分：1
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VM-and-Mac-OS
MacOS VMware虚拟机上MacOS磁盘空间扩展(MacOS VMware virtual machine disk space expansion)
- 2015-03-16 18:19:41下载
- 积分：1
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SpreadSheet
写一个GUI程序，能打开和保存.csv文件，能以表格的形式显示.csv的数据，并且能修改每个单元的 值。(Write a GUI program that can open and save. Csv file can be displayed in tabular form. Csv data, and can modify the value of each unit.)
- 2014-01-05 16:11:07下载
- 积分：1
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Open-pit-mine-arrangement
露天矿生产的车辆安排 数学建模 matlab 程序(Open-pit mine production vehicles arrangement Mathematical modeling matlab code
)
- 2011-12-31 09:53:29下载
- 积分：1
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fdtd2
二维FDTD的MATLAB的源程序，以直径为6cm的金属圆柱为例。(Two-dimensional FDTD the MATLAB source to a diameter of 6cm metal cylinder as an example.)
- 2009-03-18 20:15:25下载
- 积分：1
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newpca
一个修改后的PCA进行人脸识别的Matlab代码~~~~~~~!!!(A revised PCA for Face Recognition Matlab code ~~~~~~~!!!)
- 2009-05-29 17:06:41下载
- 积分：1
