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产生长度为1000的标准正太分布的随机信号,画出时域波形及频谱;
采用u=255的非均匀PCM编码,每符号为8bit,画输入-输出关系图;
计算信号量化噪声比(SQNR);
信道误码率为10-3;
解码,并画出u律反变换后的信号时域波形及频谱。
扩展要求:
采用均匀PCM、量化级数可变、信道误码率可变。
- have a standard len
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In Matlab
模拟与分析PCM不同量化级别的量化噪声
可以直接运行-In Matlab, simulation and analysis of different quantization levels of PCM quantization noise ,can be run directly
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simulator pcm with noise using matlab
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数字基带传输系统的MATLAB仿真实现
function [sampl,re_sampl]=system_1(A,F,P,D,snr,m,N)
输入变量A ,F,P分别为输入信号的幅度、频率和相位,D为量化电平数,snr
为信道信噪比,N为D/A转换时的内插点数;输出变量sampl为抽样后的输入
信号,re_sampl为恢复出的输入信号。
数字基带传输系统的MATLAB仿真实现
[sampl,quant,pcm]=a_d_1(A,F,P,D)
[change
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实现了对模拟信号的量化编码并计算了模拟信号的量化噪声-The realization of the analog signal and the quantization coding to calculate the quantization noise analog signal
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In this program, MSE, Step size, Bit rate, Quantization Noise are also calculated
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1、用Matlab绘制带通信号图形
2、用Matlab对模拟信源进行均匀量化
3、用Matlab编制一个函数实现均匀PCM量化编码,并计算量化噪声比(SQNR)
4、用Matlab对不同的量化级数计算出相应的量化噪声比-1, drawn using Matlab graphics bandpass
2, the simulation using Matlab source for uniform quantization
3, prepared using Matlab
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进行pcm编码的仿真及学习,通过MATLAB仿真PCM编码流程,并考虑在高斯噪声影响下pcm编码的误码情况并绘图-Pcm encoding performed simulation and learning through MATLAB simulation PCM coding process, and consider Gaussian noise pcm coding error situation and drawing
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Implementation and Signal to Quantize noise ratio (SQNR) in Pulse code modulation using Matlab. Also compared A-law, u-law, companding.-Implementation and Signal to Quantize noise ratio (SQNR) in Pulse code modulation using Matlab. Also compared A-la
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