Counting amoutn of pulses

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Hans Vertongen
Hans Vertongen 2016-4-15
回答： Baltam 2016-4-15
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

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回答（1 个）

Baltam
Baltam 2016-4-15
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

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