Create a long rectangular signal with a function handle
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I was wondering if there is a quick way to create a rectangular signal during 20 sec for example, with a function handle. I tried the following command which requires you to do it for every step.
Thanks.
u=@(t) double((0<=t & t<0.5) + ...
(1<=t & t<1.5) + ...
(2<=t & t<2.5)) .* 1;
采纳的回答
myfun = @(t) mod(t,1)<=0.5;
ezplot(myfun, 0, 20)
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Thanks!
What about you make it bidirectional as follows?
U=@(t) double((0<=t & t<0.25) - (.5<=t & t<.75) + ...
(1<=t & t<1.25) - (1.5<=t & t<1.75) + ...
(2<=t & t<2.25) - (2.5<=t & t<2.75) + ...
(3<=t & t<3.25) - (3.5<=t & t<3.75) + ...
(4<=t & t<4.25) - (4.5<=t & t<4.75)) .* 1;
fun=@(x) interp1(0:0.25:1,[1 0 -1 0 1],mod(x,1),'previous');
ezplot(fun,0,3)
fun=@(x) ppval(mkpp(0:0.25:1,[1; 0; -1; 0]),mod(x,1))
ezplot(fun,0,3)
AEW
2022-4-20
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