step signal at specific time

Hi, I want to create a step signal at a specific corresponding time.

like the below picture, but the step impulse occur at t = [0.2, 0.5, 0.7, 1.3] or whatever number that i choose

Answer 1

[Askic V]

You might want something like this:

value = 0.8;
occ_points = [0.2, 0.5, 0.7, 1.3];
t = 0:0.01:2;
y = value * ones(size(t));

for ii = 1:numel(occ_points)-1
    start_p = find(t > occ_points(ii), 1, 'first');
    end_p = find(t <= occ_points(ii+1),1,'last');
    y(start_p:end_p) = y(start_p:end_p) * (-1)^ii;
end

plot(t,y)