Counting amoutn of pulses

Hello,

I'm using a GUI to two signals of pulses (normally there are much more blue pulses):

Now I need to know how much blue pulses there are before (or after) the red pulse.

Does anyone have an idea?

With Regards

[Azzi Abdelmalek]

How did you get this figure?

Answer 1

[Baltam]

An easy way would be using the fact that your data makes jumps. If you have the data in vectors. You could try the same as in following example.

redpulse = zeros(50,1); 
redpulse(34:35) = 5; % Make one pulse with amplitude 5
bluepulse = zeros(50,1);
bluepulse(2:3:end) = 5;
bluepulse(3:3:end) = 5; % Lots of pulses

hold all,
stem(redpulse,'*'), stem(bluepulse) % Display pulses

ind_redpulse = find(diff(redpulse)>2.5); % Find the index of the first pulse
logical_ind_bluepulses = (diff(bluepulse)>2.5); % find logical vector for all blue pulses
numberOfPulses = sum(ind2(ind_redpulse:end)) % Sum all blue pulse events after the first red one.

Kind regards, Baltam