I can find the rising edge and falling edge of a square wave, any thoughts on how to find the middle of an arbitrary square wave? I created a simple code using a logical array that finds the rising edges and falling edges, but I can't think of a good way to find the middle of the square. Ideas?
Edit: I'd like to avoid using a for loop. Speed is important since this will be used to process a few GB of data.
t = 0:100;
x = false(size(t));
x(2:10) = true;
x(25:30) = true;
x(50:75) = true;
x(90:end) = true;
rising = x > [x(1) x(1:end-1)];
falling = x < [x(1) x(1:end-1)];