I'm trying to do simple averaging in Simulink and need some help with it.
Assume AI'm acquiring a noisy signal at 1 mS interval and I want to get 1 point every 50 mS. I would like to collect the data for the 50 mS and spit out an average for logging. I'm not sure how to do it.
John Michell answered .
2025-11-20
function y = my_average(u) %# codegen
persistent i buf bufSum;
if isempty(buf)
buf = zeros(1,50);
bufSum = 0;
i = 1;
end
bufSum = bufSum - buf(i);
buf(i) = u;
bufSum = bufSum + u;
i = i + 1;
if i > numel(buf)
i = 1;
end
y = bufSum / numel(buf);