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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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LDPCdemo
LDPC低密度奇偶校验码的演示程序包，适合初学者使用(LDPC LDPC codes demo packages for beginners)
- 2020-12-10 22:59:20下载
- 积分：1
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IPMSM_sensorless
无传感器控制同步电机simulink仿真模型，已经闭环控制，参数在m文件中。(Sensor-controlled synchronous motor simulink simulation model has closed-loop control, parameter m file.)
- 2013-09-25 20:25:42下载
- 积分：1
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extractMainFrame
matlab编写的视频关键帧提取程序，可自动从视频中提取帧，提取第几帧可在程序中自行设定，另附有批量处理视频的主函数。(matlab prepared video key frame extraction procedures can be automatically extracted from video frames to extract the first few frames can be set in the program, batch processing video attached with the main function.)
- 2014-01-15 15:02:27下载
- 积分：1
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MobileRadioChannelsModelinginMATLAB
Mobile Radio Channels Modeling in MATLAB
- 2009-04-19 21:11:20下载
- 积分：1
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car1_1
遗传算法计算一条流水线作业时间问题的matlab程序代码(genetic algorithm operating a pipeline timing of the Matlab code)
- 2005-05-30 17:38:45下载
- 积分：1
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hardy
solving a network of pipeline by the procedure of HARDY CROSS .
- 2011-01-06 16:56:46下载
- 积分：1
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FSK
数字调制FSK仿真的完整程序，很有用的哦(Digital modulation FSK simulation complete program, very useful oh
)
- 2011-05-05 13:39:42下载
- 积分：1
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t_tide_v1.3beta
潮流调和分析，matlab的经典程序，希望对大家有用，祝好运(matlab classic program， hope helpful to you，good luck)
- 2012-04-23 16:39:30下载
- 积分：1
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event_spike
This code is about designing of synthetics seismic data.
- 2009-11-13 03:33:31下载
- 积分：1
