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Marr边缘检测算法的研究,,提出了不等间隔采样和非均匀量化相结合的数字化方法-Marr edge detection algorithm research, interval ranging from the non-uniform sampling and quantization combination of digital methods
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PCM编码实例。包括均匀量化编码,非均匀量化编码,及A率PCM编码。-PCM coding examples. Including uniform quantization coding, non-uniform quantization coding, and A PCM coding rate.
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实现对数压缩PCM和线性PCM的信噪比特性曲线的仿真,非均匀量化级数为n=8和n=6。-realization of a number of PCM compressed and linear PCM signal-to-noise ratio of the characteristic curve simulation, non-uniform quantization Series n = 8 and n = 6.
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本程序利用VC实现均匀量化和非均匀量化信噪比的仿真。并画出曲线-procedures for the use of the VC uniform and non-uniform quantization SNR quantitative simulation. And he painted curves
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学通信原理的时候,自己写的A率13折线编码和均匀量化PCM系统的系统仿真-Learn communication theory when he wrote A uniform rate of 13 line coding and quantization PCM system simulation system
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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
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介绍A律13折线的原理,很好很强大,非均匀量化参考好资料-A law introduced the principle of 13 line, nice and strong, non-uniform quantization good reference information
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用matlab编A律13折线非均匀量化信噪比.m- non-uniform quantization noise ratio
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In this project we analyze and design the minimum mean-square error (MMSE) multiuser receiver for uniformly quantized synchronous code division multiple access (CDMA) signals in additive white Gaussian noise (AWGN) channels.This project is mainly bas
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采用matlab编写的关于当 L=64时,为求得在均匀量化时的最优步长-Prepared by the use of matlab when L = 64 when, in order to achieve the optimal uniform quantization step size at the time of
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均匀量化和非均匀量化在性能上存在着显著的差异,这种差异可以用信号通过量化器后的量躁比来反映出来。本程序用曲线表示了理论和实际两个方面下两种量化的量躁比。从而可观察他们的性能上的差别。-There are significant differences with the function between Uniform quantization and non-uniform quantization ,which can be quantified by SNR from the quant
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通信原理中均匀量化方面的仿真,程序简单易懂,希望能加深你对量化的理解-Communication Theory in the uniform quantization in the simulation, the program easy to understand, hoping to deepen your understanding of quantitative
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是通信原理的PCM编码过程,采用均匀量化-The communication principles of PCM encoding process, using uniform quantization
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模拟信号转换成数字形式,必须要经过量化才能实现。标量量化的方法包括均匀量化和非均匀量化两种,这两种方法都会带来精度的损失。文中探讨了模拟信源量化的最优算法,并用C语言实现了高斯信源在不同量化电平下均匀量化和非均匀量化的最优步长的数值计算。通过对计算结果进行比较,给出了非均匀量化优于均匀量化的具体结论。-Analog signals into digital form, you must go through quantification can be achieved. Scalar unifo
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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,
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基于matlab的pcm系统的仿真之对语音信号的均匀量化编码-Matlab-based system simulation of the pcm speech signal uniform quantization coding
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一个用于量化的程序,包括均匀量化和非均匀量化。-One for quantitative procedures, including non-uniform quantization and uniform quantization.
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从均匀PCM方法入手,产生一振幅为1和频率ω=1的正弦信号,分别用8电平和16电平进行量化,在同一坐标轴上绘出原信号和以量化信号,并比较这两种情况下的信号/量化噪声比-Starting from the uniform PCM method to produce a 1 amplitude and frequency ω = 1 of the sinusoidal signal, respectively, with 8 levels and 16 levels were quantified
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一。产生长度为500的零均值,单位方差的高斯随机变量序列,用均匀pcm的方法用16电平进行量化:1)求所得的SQNR,该序列的前5个值,相应的量化值和相应的码字。2)画出量化误差(定义为输入值和量化值之间的差),同时 画出量化值作为输入值的函数的图。3)用128量化电平数重做2)题, 比较结果。
二。产生一个长度为500,按N(O,1)分布的随机变量序列,分别用16,128量化电平数和u=255的u律非线性进行量化,画出每种情况下量化器的误差和输入-输出关系,并求SQNR.
三。长度为5
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均匀量化函数,可设定量化位数,返回值为量化矩阵-Uniform quantization function, you can set the number of quantization bits,quantization matrix is returned
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