MATLAB: How to plot multiple signals with unit step signal

signal processing

I need to plot this function:

v(t)=(2t+1)[u(t)-u(t-1)]+3[u(t-1)-u(t-2)]+(-t+3)[u(t-2)-u(t-3)]

Best Answer

t=-5:0.1:5
v=(2*t+1).*(heaviside(t)-heaviside(t-1))+3*(heaviside(t-1)-heaviside(t-2))+(-t+3).*(heaviside(t-2)-heaviside(t-3))
plot(t,v,'linewidth',4)

Related Solutions

MATLAB: Plotting unit step function

   Fs = 100;
   dt = 1/Fs;
   StartTime = -5;
   StopTime = 15;
   t = StartTime:dt:StopTime-dt;
   x = (t>1) - (t>2) + (t<2) - (t<3) + (t>3) - (t>4);
   figure;
   stairs(t,x);
   ylim([-1.2 1.2]);

MATLAB: Plot unit step function

You can use a ‘logical indexing’ approach:

ustp = @(t) +(t>0);                                 % Simple Unit Step Function
t = linspace(-5, 5);
figure
plot(t, ustp(t)-ustp(t-1))
grid

I will let you figure out how it works.

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Related Solutions

MATLAB: Plotting unit step function

MATLAB: Plot unit step function

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