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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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UC1682_TEST_CODE
COLOR STN UC1682 TEST CODE.(COLOR CODE TEST STN UC1682.)
- 2007-06-16 11:13:45下载
- 积分：1
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cv7
discreet continous, fir and step model matrix
- 2014-12-16 20:11:59下载
- 积分：1
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MATLAB-Introduction-Applications
Amos Gilat写的MATLAB教材，很详细清楚。 An Introduction with Applications, Fourth Edition 2011( An Introduction with Applications, Fourth Edition )
- 2013-11-12 15:55:09下载
- 积分：1
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MOMEDA+Teager（MCKD+Teager）
说明： 能够实现对实验数据的降维，为故障分类做准备(It can reduce the dimension of experimental data and prepare for fault classification)
- 2021-04-16 10:08:53下载
- 积分：1
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u
这是关于层次分析法、聚类分析、主成分分析的源代码(This is about the level of analysis, cluster analysis, principal component analysis of the source code)
- 2013-09-13 16:32:42下载
- 积分：1
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abc
运用分步傅里叶法求解NLS方程，最终输出时序图和频域图(Using split-step Fourier method for solving NLS equation, the final output timing diagrams and frequency domain)
- 2016-03-14 22:04:17下载
- 积分：1
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fdxx
该程序实现灰度图像分段线性变换，Matlab实现(Gray-scale image of the process to achieve sub-linear transformation, Matlab to achieve)
- 2009-04-28 08:49:34下载
- 积分：1
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Code-FOC-
基于Mcrochip的PMSM滑模观测器FOC控制(FOC PMSM control sliding mode observer)
- 2021-04-27 12:58:44下载
- 积分：1
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qiyizhi
对加噪信号进行奇异值分解。对奇异值计算其熵特征(Plus noise signal on the singular value decomposition. Calculate the entropy for the singular value feature)
- 2013-05-25 09:35:14下载
- 积分：1
