41 lines
1.0 KiB
Matlab
41 lines
1.0 KiB
Matlab
function signal_filtered = movingAverage(t, signal, nbSamples, plt)
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% function signal_filtered = movingAverage(t, signal, 10, plt)
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% ex.: signal_filtered = movingAverage(t, signal, 10, 1);
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%
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% Task: To apply a moving average filter
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%
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% Inputs:
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% -t: temporal vector(in s)
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% -signal: signal amplitude (length is the same as t), in a.u
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% -nbSamples=nb of samples taken into account to complete the moving
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% amplitude
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% -plot
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%
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% Outputs: -signal_filtered:filtered signal amplitude is a.u. after
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% windowing
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%
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%
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% Author: Lymeng LY, lymeng.ly@ecam.fr
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% Date: 07/04/2025
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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signal_filtered = zeros(1,length(signal));
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for l_samples = nbSamples:length(signal)
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sum = 0;
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for l_avg=0:nbSamples-1
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sum = sum+signal(l_sample-l_avg);
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end
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signal_filtered(l_samples)= sum/nbSamples;
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end
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if(plt)
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figure;
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plot(t, signal, 'b'); hold on;
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plot(t, signal_filtered, 'r');
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ylim([99 101]);
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xlabel('Time(s)');
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ylabel('Amplitude(a.u.)');
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legend('raw','filtered');
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end
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