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pcm
脉冲编码调制(PCM)实现
编程实现PCM技术的三个过程:采样、量化与编码。
采样:低通连续信号采样,以 x=sin(200*t) m=x./(200*t) m=m.*m 为例说明低通采样定理,绘出信号时、频图形;带通连续信号采样,以x=sin(20*t) m=x./t 为例说明带通采样定理,绘出信号时、频图形。
量化:均匀量化,以幅度 的正弦信号为例实现为64级电平的均匀量化;非均匀量化,输入A律PCM编码器的正弦信号 ,采样序列为 ,将其进行PCM编码,给出编码器的输出码组序列
编码:以上述信号为例,实现A律的13折线近似法及国际标准PCM对数A律量化编码。(Pulse code modulation (PCM) to achieve
PCM technology programming three processes: sampling, quantization and coding.
Sample: low-pass continuous signal sampling to x = sin (200* t) m = x./(200* t) m = m.* m an example low-pass sampling theorem, draw the signal, frequency graphics bandpass sampling continuous signals to x = sin (20* t) m = x./t an example bandpass sampling theorem, draw the signal, frequency graph.
Quantization: uniform quantization, in order to realize the magnitude of sinusoidal signal as an example for the 64 level uniform quantization non-uniform quantization, input A law PCM encoder sine signal, the sampling sequence, to be PCM encoded, the encoder is given The output code sequence
Code: A Case Study of the signal to achieve the 13 A line approximation law and international standards on the number of A law PCM coding quantization.)
- 2010-05-31 14:35:33下载
- 积分:1
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getExStiff
已知一对外啮合传动的齿轮的几何参数,求其啮合刚度。(to get the meshing stiffness for one pair of gear.)
- 2020-07-03 11:40:02下载
- 积分:1
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spCorr
pitch detection with correlation
- 2010-09-06 22:15:32下载
- 积分:1
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DISTANCE
定义surface distance, matlab 代码,可以运行,计算两个曲面 球面之间的距离(surface ellipsoid distance calculation )
- 2014-11-12 20:01:46下载
- 积分:1
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2209100144
controling speed of rotor
- 2012-10-18 19:56:03下载
- 积分:1
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genjao
最小二乘回归分析算法,进行逐步线性回归,实现了图像的加水印,去噪,加噪声等功能。( Least-squares regression analysis algorithm, Stepwise linear regression, Realize image watermarking, de-noising, plus noise and other functions.)
- 2016-09-20 21:51:24下载
- 积分:1
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dcolordisplay
Display complex-valued data using domain coloring
- 2011-01-21 09:26:36下载
- 积分:1
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fastICA
基于负熵最大化的fastICA,matlab程序。程序中的公式在所附带的pdf文件中都高亮标明(Based on negative entropy maximization fastICA, matlab program. The formula in the program attached pdf file are highlighted marked)
- 2013-10-29 19:24:49下载
- 积分:1
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PSO-RBF
粒子群算法(PSO)优化的径向基函数(RBF)神经网络算法(Radial basis function (RBF) neural network algorithm optimized by particle swarm optimization (PSO) algorithm)
- 2021-04-12 14:38:57下载
- 积分:1
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lmsfilter
该程序在MAtlab环境下的基于LMS的自适应滤波器的算法设计(The program MAtlab environment based on the LMS Adaptive Filter Algorithm Design)
- 2009-11-09 11:12:31下载
- 积分:1