34 lines
929 B
Mathematica
34 lines
929 B
Mathematica
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ce_results = load('mat/cedrat_la75b_high_1_stack.mat', 't', 'V_in', 'V_out');
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pi_results = load('mat/pi_505_high.mat', 't', 'V_in', 'V_out');
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%%
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run setup;
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win = hann(ceil(0.1/Ts));
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[tf_ce, f_ce] = tfestimate(ce_results.V_in, ce_results.V_out, win, [], [], 1/Ts);
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[tf_pi, f_pi] = tfestimate(pi_results.V_in, pi_results.V_out, win, [], [], 1/Ts);
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%%
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figure;
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ax1 = subplot(2, 1, 1);
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hold on;
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plot(f_pi, abs(tf_pi), 'DisplayName', 'PI')
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plot(f_ce, abs(tf_ce), 'DisplayName', 'Cedrat')
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set(gca, 'Xscale', 'log'); set(gca, 'Yscale', 'log');
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ylabel('Amplitude'); xlabel('Frequency [Hz]');
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hold off;
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legend('location', 'southwest');
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ylim([0.1, 50]);
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ax2 = subplot(2, 1, 2);
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hold on;
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plot(f_pi, 180/pi*unwrap(angle(tf_pi)))
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plot(f_ce, 180/pi*unwrap(angle(tf_ce)))
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set(gca, 'Xscale', 'log'); set(gca, 'Yscale', 'lin');
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ylabel('Phase'); xlabel('Frequency [Hz]');
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hold off;
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ylim([-360, 0]);
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linkaxes([ax1,ax2], 'x');
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xlim([10, 5000]);
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