MATLAB: 2 input and one out in plot

signal systemsspectrum analysis

in this image in example of spectrum analysis of sinusidal signals i want input plot 1 and plot 2 and i want that matlab Draw plot 3 Diagram . what commands can do this problem ? please help man tankyou

meanwhile 1 plot is cos(pi/3n)+0.75cos(2pi/3n) and 2 plot is rectangular window

Best Answer

It looks like the stem() function will create that kind of plot.

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MATLAB: How to create this plot

I already did it in your duplicate question. Here it is again:

% Create data.
x = -3:11;
y1 = cos(x .* pi/3)+0.75*cos(2*x*pi/3);
y2 = [0,0,0,1,1,1,1,1,1,1,1,0,0,0,0]
y3 = y1 .* y2;
% Plot top graph.


subplot(3,1,1);
stem(x,y1, 'Color', 'k', 'MarkerFaceColor', 'k', 'LineWidth', 3);
xlim([-3,11]);
ylim([-2,2]);
grid on;
% Enlarge figure to full screen.
set(gcf, 'Units', 'Normalized', 'OuterPosition', [0 0 1 1]);
% Plot top graph.
subplot(3,1,2);
stem(x,y2, 'Color', 'k', 'MarkerFaceColor', 'k', 'LineWidth', 3);
xlim([-3,11]);
ylim([0, 1.2]);
grid on;
% Plot top graph.
subplot(3,1,3);
stem(x,y3, 'Color', 'k', 'MarkerFaceColor', 'k', 'LineWidth', 3);
xlim([-3,11]);
ylim([-2, 2]);
grid on;

MATLAB: Hi everybody i want to make animation using matlab but frames are plotted to gether on the same figure

% cart plotting
function []=cart(l1,time,position,angle1)  %cart(pendulum length,time vector,position vector,angle vector)
  cart=figure('color','white');
  ax = axes('Parent', cart);
  hold(ax, 'on');
  axis(ax, 'off', 'equal');
  line([-2 2], [0 0], 'color', [0 0 0], 'LineWidth', 2, 'Parent', ax);
  title(ax, 'cart plotting', 'Color', [.6 0 0]);
  fill_y = [.03 .13 .13 .03];
  p1_y = .015;
  p2_y = .015;
  for i=1:length(time)
     fill_x = [position(i)-.1 position(i)-.1 position(i)+.1 position(i)+.1];
     p1_x = position(i)-.08;
     p2_x = position(i)+.08;
     % pendulum (1) co-ordinates ::
     xp1 = position(i) + l1*sin(angle1(i));
     yp1 = .08 + l1*cos(angle1(i));
     lh_x = [position(i) xp1];
     lh_y = [.08 yp1];
     if i == 1
       fh = fill(fill_x, fill_y , 'r');
       p1 = plot(p1_x, p1_y, 'o', 'MarkerFaceColor', 'g',...
                                   'MarkerSize',5 );
       p2 = plot(p2_x, p2_y, 'o', 'MarkerFaceColor', 'g',...
                                   'MarkerSize', 5);
       lh = line( lh_x, lh_y, 'color', [1 1 0], 'LineWidth', 2);
       p3 = plot(xp1, yp1, 'o', 'MarkerFaceColor', 'k', 'MarkerSize', 7);
     else
       set(fh, 'Vertices', [fill_x(:), fill_y(:)]);
       set(p1, 'XData', p1_x);
       set(p2, 'XData', p2_x);
       set(lh, 'XData', lh_x, 'YData', lh_y);
       set(p3, 'XData', xp1, 'YData', yp1);
     end
     drawnow
     pause(.1);
  end
end

Best Answer

Related Solutions

MATLAB: How to create this plot

MATLAB: Hi everybody i want to make animation using matlab but frames are plotted to gether on the same figure

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