用matlab生成sin(2*pi*t)的时分复用
时间: 2023-06-26 19:07:29 浏览: 174
可以使用MATLAB中的调制函数实现时分复用。
首先,生成两个不同频率的正弦信号:
```
Fs = 1000; % 采样率
t = 0:1/Fs:1-1/Fs; % 时间序列
f1 = 10; % 第一个正弦波频率
f2 = 20; % 第二个正弦波频率
x1 = sin(2*pi*f1*t);
x2 = sin(2*pi*f2*t);
```
然后,将这两个信号进行调制:
```
fc = 100; % 载波频率
y1 = ammod(x1,fc,Fs,'dsb-sc'); % 第一个信号调制
y2 = ammod(x2,fc,Fs,'dsb-sc'); % 第二个信号调制
```
最后,将两个调制后的信号相加即可:
```
y = y1 + y2; % 时分复用信号
```
其中,`ammod` 是 MATLAB 中用于进行幅度调制的函数,`dsb-sc` 表示双边带抑制载波调制方式。
完整代码如下:
```
Fs = 1000; % 采样率
t = 0:1/Fs:1-1/Fs; % 时间序列
f1 = 10; % 第一个正弦波频率
f2 = 20; % 第二个正弦波频率
x1 = sin(2*pi*f1*t);
x2 = sin(2*pi*f2*t);
fc = 100; % 载波频率
y1 = ammod(x1,fc,Fs,'dsb-sc'); % 第一个信号调制
y2 = ammod(x2,fc,Fs,'dsb-sc'); % 第二个信号调制
y = y1 + y2; % 时分复用信号
```
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