一、为什么要调制 调制(modulation)就是对信号源的信息进行处理(低频),加到载波上(高频),使其变为适合于信道传输的形式。 无线电传输时,频率越高,波长越小,发射时需要的天线也越短。 式中,λ为波长(m);c为电磁波传播速度(光速3*10^8)(m/s);f为频率(Hz)。音频信号的频率范围是20Hz～20kHz,最小的波长...
✅作者简介:热爱科研的Matlab仿真开发者,修心和技术同步精进,matlab项目合作可私信。 🍎个人主页:Matlab科研工作室 🍊个人信条:格物致知。 ⛄ 内容介绍 AM(Amplitude Modulation)调制是一种常见的模拟调制技术,通过改变载波信号的幅度来传输基带信号。在AM调制中,基带信号被乘以一个高频载波信号,产生一个带有两个...
Amplitude Modulation (AM) in time and frequency (FFT) domain with fs=220500 Hz, fc=2000 Hz and fm=300 Hz. FIND MORE HERE:http://www.behindthesciences.com/signal-processing/amplitudemodulationammatlabtutorial Cite As Behind The Sciences (2025).Amplitude Modulation (AM) in time and ...
Open in MATLAB Online Download Amplitude modulation and demodulation is implemented with basic equations. It can be run without having communication toolbox. Cite As Ashwini (2025).AM Mod-Demod(https://www.mathworks.com/matlabcentral/fileexchange/25885-am-mod-demod), MATLAB Central File Exchange....
댓글:Kilavo Hassan2016년 5월 21일 I am looking on how to test the strength of the RS, looking for matlab code that can generate data,insert noise and decode. 댓글 수: 0 댓글을 달려면 로그인하십시오. ...
MATLAB Online에서 열기 Ran in: i have a signal and i want to add some AM noise to it. the signal looks like this: the code for the signal is : Fs = 1E+9; L = 2E-6; t = linspace(0, L*Fs, L*Fs+1)/Fs;
Amplitude Modulation:以下片段允许用户输入消息信号和载波信号的参数并查看AM信号。-matlab开发 开发技术 - 其它Pa**过往 上传2KB 文件格式 zip 幅度调制是一种调制消息信号的技术,其中载波信号的幅度根据消息信号的幅度而变化。 载波信号的幅度夹在消息信号的包络之间。 为了正确调制,必须考虑调制指数。 调制指数定义...
语言: Matlab 标签: pam 高速下载 资源简介 脉冲振幅调制(Pulse Amplitude Modulation)是脉冲载波的幅度随基带信号变化的一种调制方式。若脉冲载波是冲激脉冲序列,则抽样定理就是脉冲振幅调制的原理。而实际上,由于真正的冲激脉冲串不能实现,通常只能采用窄脉冲串来实现。
For the performing AM modulation, we need to give importance when we select A, especially when checking the envelope detection. In MATLAB code, it is properly selected as 0.5, and the carrier frequency is chosen as 10 kHz, which is higher than the bandwidth of the message signal since ...
function varargout = digital_modulation_OutputFcn(hObject, eventdata, handles) % varargout cell array for returning output args (see VARARGOUT); % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB ...