why matlab can't plot signals ?

2 次查看（过去 30 天）
Mohamed
Mohamed 2024-1-6
评论： Dyuman Joshi 2024-1-6
clc;
clear all;
close all;
Fc= input(' Carrier frequency = ');
Fm= input(' message frequency = ');
Am=input('Message signal amplitude = ');
Ac=input('Carrier signal amplitude = ');
B=input('Modulation index = ');
t=0: 0.0001;0.1;
C_t= Ac*cos(2*pi*Fc*t);
subplot(3,1,1);
plot(t,C_t);
ylabel('amplitude');xlabel('time index');title('Carrier signal');
M_t= Am*sin(2*pi*Fm*t);
subplot(3,1,2);
plot(t,M_t);
ylabel('amplitude');xlabel('time index');title('Modulating signal');
S_t = Ac*cos((2*pi*Fc*t)+ B*cos(2*pi*Fm*t));
subplot(3,1,3);
plot(t,S_t);
ylabel('amplitude');xlabel('time index');title('Frequency Modulated signal');

请先登录，再回答此问题。

采纳的回答

Dyuman Joshi
Dyuman Joshi 2024-1-6
编辑：Dyuman Joshi 2024-1-6
Ran in:
Because there's a typo, semi-colon instead of colon in defining t.
% v
t=0: 0.0001;0.1;
t
t = 0
t here is a scalar, which when you supplied to plot() without specifying a marker does not result in a plot.
Fix the typo and your code will work as expected.

更多回答（1 个）

madhan ravi
madhan ravi 2024-1-6
t = 0 : 0.0001 : 0.1;
% ^

类别

在 Help Center 和 File Exchange 中查找有关 Matched Filter and Ambiguity Function 的更多信息

标签

产品


版本

R2023b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by