MATLAB: Shifting a Square Wave in Matlab

plottingshiftsquare wave

Hello,

I'm having trouble creating a square wave. I have created my square wave using the gensig function but now my goal is to shift the wave over 0.5 units to the left so that it reads 1 from 0 to 0.5.

Can anyone offer any solutions to this or give me advice?

Do I now have to use a different function?

Code:

[u,t]=gensig('square',0.5,5,0.001)

plot (t,u); axis([0 5 -2 2])

Best Answer

plot(t-0.5, u)

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Just create the first period of the wave and use the repmat function to make the entire wave.

Example:

x=[0 1]
y=repmat(x,1,10)

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t=0:0.001:10;
%sine wave
sinewave=2*sin(1500*t);
%square wave Vptp=5v DC=2.5V
squarewave1=2.5+2.5*square(12000*t);
%triangle wave
trianglewave=0.25+0.25*sawtooth(5000*t);
%square wave f=80kHz
squarewave2=2.5+2.5*square(80000*t);
%sawtooth wave
sawtoothwave=-3+2.5*sawtooth(10000*t);
plot(t,sinewave)
%same plot command can be applied for any of them, get closer in figures to
%see the waves since their frequencies are high

If you want to see from a broader perspective, increase the increment of t, like 0.1.

Best Answer

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