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semestralka a praca na nej

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Filipriec
2025-11-13 14:47:18 +01:00
parent ac80e6fd55
commit 4f4b634dc8
1 changed files with 12 additions and 1 deletions
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semestralka/1.m
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@@ -9,13 +9,24 @@ data = int16(str2double(nums));
X = DFT_priama(double(data)) X = DFT_priama(double(data))
n = length(X) n = length(X)
freq = (0:n-1)/n Fs = 200;
freq = (0:n-1)*Fs/n
figure; figure;
plot(double(data)); plot(double(data));
figure; figure;
plot(freq, X) plot(freq, X)
figure; figure;
x = double(data);
x = x - mean(x);
plot(x); % centrovane data
figure;
plot(freq, abs(X)) plot(freq, abs(X))
figure; figure;
plot(freq, angle(X)) plot(freq, angle(X))
magX = abs(X);
[pks, locs] = findpeaks(magX, 'NPeaks', 6, 'SortStr', 'descend');
f0 = freq(locs);
disp(f0);