How to generate a square periodic wave?
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I need to create a continuous wave, however, the following method will not work for what i intend to do. ie
fs = 10000;
t = 0:1/fs:1.5;
x2 = square(2*pi*50*t);
This is because, as the wave is being called inside of a function, which generates derivitves for the solutions to a ODE, the equation needs to call on specific times of t at that point in the function, rather than just from a t-array as shown above. Is there any other way i could create this square wave, using the same frequency?
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Answers (1)
Wayne King
on 25 Apr 2013
Edited: Wayne King
on 25 Apr 2013
Perhaps I don't understand your post, but if you create the square wave as shown above, then why can't you obtain the value of the resulting vector (function) at specific times?
fs = 10000;
t = 0:1/fs:1.5;
x2 = square(2*pi*50*t);
Now you know the interval between every value in the waveform. If I want the value of the waveform at 0.02 seconds, you know that corresponds to
x(201)
and so on.
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winkmal
on 26 Mar 2018
A bit late, but how about an anonymous function?
x2 = @(t) square(2*pi*50*t);
If you use this in your RHS function, Matlab should be able to evaluate it at any value of t.
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