function A_Crent=D_CodeofPCM(CodeofPCM) CodeofPCM_int = CodeofPCM; %% 极性判断 Jixing = 1; iffloor(CodeofPCM_int/10^7) == 0 Jixing = -1; end %% 段号 DuanHao = floor(mod(abs(CodeofPCM_int),10^7)/10^4); DuanHao = n
1. PCM编码的基本概念 PCM(Pulse Code Modulation,脉冲编码调制)是一种将模拟信号转换为数字信号的技术。它通过定期采样模拟信号,并将每个采样点的幅度量化为一系列离散的数值来实现。这些量化后的数值再被编码成二进制码,从而完成模拟到数字的转换。 2. MATLAB中实现PCM编码的基本步骤 在MATLAB中实现PCM编码的基本步...
Theso-calledPCMtechnology,commonlyknownaspulsecodemodulation,isessentiallyamodulationmethodthatconvertsanaloginformationintodigitalinformation.Atpresent,PCMtechnologyhasbeenwidelyusedinvoicetransmission,satellitecommunicationandotherhigh-techindustries,andwiththehelpofMATLABsoftware,inthedesignofrelatedsystems,itcanhelpdevelop...
and and and modeling modeling modeling for for for pulse pulse pulse code code code modulation(PCM). modulation(PCM). modulation(PCM). In In In this this this design, design, design, divide divide divide into into into...
关键词:脉冲编码调制(PCM) 均匀与非均匀量化 MATLAB仿真 Abstract In this design, combination the Simulink emulatation function and the S- function’s spread function of MATLAB software, have completed the systematic emulatation and modeling for pulse code modulation( PCM). In this design,divide into...
数字信号是对连续变化的模拟信号进行抽样、量化和编码产生的,称为PCM(Pulse Code Modulation),即脉冲编码调制。 脉冲编码调制就是把一个时间连续,取值连续的模拟信号变换成时间离散,取值离散的数字信号后在信道中传输。脉冲编码调制就是对模拟信号先抽样,再对样值幅度量化,编码的过程。
2.在通信系统仿真软件MATLAB平台上,采用M文件设计A律PCM码译码器; 3。学会利用MATLAB对PCM编码这种实际问题进行处理,将理论应用于实践; 4。对设计项目进行调试,对译码器进行仿真; 5。对仿真结果结合编译码理论进行分析。 2 设计原理 2.1 PCM编码原理 脉冲编码调制(PCM,Pulse Code Modulation)在通信系统中完成将语音...
关键词:matlab;脉冲编码调制(PCM) 均匀与非均匀量化 MATLAB 仿真。 ABSTRACT In this design,combination theSimulinkemulatation function and the s-function’s spread function of MATLAB software, have complete the systematic emulatation and modeling for pulse code modulation(PCM). In this design, divide ...
Code Modulation ),它的过程分为采样、量化和编码; 采样是对模拟信号进行周期性的扫描,将实际上连续变化的信号转换为时间上离散的信号,从而便于表示为计算机的语言。根据Nyquist采样定理,当采样频率高于信号最高频率的一倍时,原来的连续信号就可以从采样样本中完全重建出来。人耳可以分辨的声音频率范围为(20Hz,20KHz),...
Pulse Code Modulation and Demodulation for Learning Purposes 다운로드 수: 25 Simulation of PCM using MATLAB 다운로드 수: 605 Goertzel-Algorithm 다운로드 수: 337 카테고리 Wireless Communications > Communications Toolbox > PHY Components > Modulation > PCM Help...