How to create positive or negative half cycle of sine wave?
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farah piani
on 13 Jan 2016
Answered: Olexander Zhytenko
on 2 Mar 2016
I got a full cycle of sine wave. if I need to zero the 1st half of the sine wave , to get only the negative half cycle, what should I do ?I have done this:
close all;
clc;
t=[0 0 0 0 0 1 1.2 1.4 1.6 1.8 2]
f=.5;% Input Signal Frequency
x=sin(2*pi*f*t);% Generate Sine Wave
plot(t,x);
I wanted an improved version . Is there any other way to do it ?
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Accepted Answer
Star Strider
on 13 Jan 2016
Yes. Rectify it using logical indexing:
t = 0:0.2:2;
f=.5;% Input Signal Frequency
x=sin(2*pi*f*t);% Generate Sine Wave
x(x>0) = 0; % Rectified Sine Wave
plot(t,x);
axis([xlim -1 1])
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