Combining 2 signals into 1
9 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Dick Rusell
le 20 Sep 2014
Modifié(e) : Rick Rosson
le 20 Sep 2014
I'm trying to combine these signals but I'm not sure how.
n = [0:1023];
omega = 0.25*pi;
xn = sin(omega*n);
ns = sqrt(0.2)*randn(1,n);
2 commentaires
Réponse acceptée
Image Analyst
le 20 Sep 2014
After seeing your clarification, I offer these two possibilities. Perhaps one of them is what you want:
clc; % Clear the command window.
close all; % Close all figures (except those of imtool.)
clear; % Erase all existing variables. Or clearvars if you want.
workspace; % Make sure the workspace panel is showing.
fontSize = 20;
% Setup
n = 100;
x=1:n;
omega = 0.25*pi;
xn = sin(omega*x);
ns = sqrt(0.2)*randn(1,n);
% Plot different scenarios, depending on what "combine" means.
% Plot both on same plot
% Plot with common y axis on left side
subplot(2,1,1);
plot(x, ns, 'r-', 'LineWidth', 2);
hold on
plot(x, xn, 'b-', 'LineWidth', 2);
xlabel('x', 'FontSize', fontSize);
ylabel('xn, ns', 'FontSize', fontSize);
title('xn and ns vs. x, one y axis', 'FontSize', fontSize);
grid on;
% Enlarge figure to full screen.
set(gcf, 'Units', 'Normalized', 'OuterPosition', [0 0 1 1]);
% Plot each with separate y axis.
subplot(2,1,2);
plot(x, ns, 'r-', 'LineWidth', 2);
hold on
hPlots = plotyy(x, xn, x, ns);
xlabel('x', 'FontSize', fontSize);
ylabel(hPlots(1), 'xn', 'FontSize', fontSize);
ylabel(hPlots(2), 'ns', 'FontSize', fontSize);
title('xn and ns vs. x, separate y axes', 'FontSize', fontSize);
grid on;
If neither of these is what you want, then please clarify again -- there are other possibilities. See MATLAB Gallery for some of them.
1 commentaire
Image Analyst
le 20 Sep 2014
"other possibilities" -- such as the way Rick did it, which I just saw and is slightly different than my two ways.
Plus de réponses (1)
Rick Rosson
le 20 Sep 2014
Modifié(e) : Rick Rosson
le 20 Sep 2014
Please try:
plot(n,xn,n,ns);
For more info:
>> doc plot
0 commentaires
Voir également
Catégories
En savoir plus sur Log Plots dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!