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Pulse-Code-Modulation
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.
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- 2011-02-05 23:10:39下载
- 积分:1
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ridgelet
this is for orthonormal ridgelets implemtation
- 2010-11-09 23:15:59下载
- 积分:1
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bangbang
this is a simple illustration of a bang bang controller...
- 2010-02-17 13:39:57下载
- 积分:1
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VELAN
matlab速度分析程序,用于地震勘探速度分析及动校正(NMO)。(Matlab velocity analysis procedures for seismic velocity analysis and dynamic correction (NMO).)
- 2020-07-18 14:28:47下载
- 积分:1
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code
《Matlab遗传算法工具箱及应用》源码(" Matlab genetic algorithm toolbox and application of" source)
- 2010-03-04 22:29:35下载
- 积分:1
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sift
sift 特征提取算法matlab实现,有实例(sift 特征提取算法matlab实现,有实例)
- 2020-07-21 14:48:46下载
- 积分:1
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nufft
非均匀傅里叶变换 mex name.c加载C文件(nonuniform fourier transfrom)
- 2020-11-22 17:29:34下载
- 积分:1
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jienan
基于K均值的PSO聚类算法,使用matlab实现智能预测控制算法,数据模型归一化,模态振动。( K-means clustering algorithm based on the PSO, Use matlab intelligent predictive control algorithm, Normalized data model, modal vibration.)
- 2020-11-10 09:59:46下载
- 积分:1
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matlab_clock
matlab小程序,很漂亮的时钟动画,其中圆形等曲线纯代码实现(matlab small procedures, very beautiful clock animation, in which a circular curve of pure code, etc.)
- 2008-08-18 14:22:52下载
- 积分:1
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(STM32)ADC DMA USART(仅必须的C文件不含工程)
说明: simulink控制系统模拟,关于信号的采集(simulation of simulink's control)
- 2017-09-28 20:40:21下载
- 积分:1