• I have in Matlab two time signals y1(t1) and y2(t2).
• The sample rate of t1 and t2 is different (t2 has a lower sample rate).
• Goal: I want to mask y1 based on the value of y2: When y2 is zero then y1 should be zero.
• Problem: Because of the different sample rates, I have trouble achieving this –> do you have an idea?
• The 2nd diagam shows teh desiged output für y3 (= masked y1) (green).

t1 = 0:0.01:10;
y1 = sin(t1*10);
% plot(t1, y1)

t2 = 0:1:10;
y2 = t2.*[0 1 1 0 0 1 1 1 1 0 0];
% stairs(t2, y2)

plot(t1, y1)
hold on
stairs(t2, y2)
hold off

% I need a y3 with time t1.
% y3 is zero when y2 is zero.
% y3 = ???

Current output for y1(t1) [blue] and y2(t2) [orange]

Desired output for y3(t1) [green]