Bode Plot for two different sinusoidal inputs

7 次查看(过去 30 天)
I want to create bode plot comparing two different sine inputs with different frequencies (.1 and 7.5), but same transfer function (8.008/s^2+.54s+7.95). Any help would be greatly appreciated.

采纳的回答

Athanasios Paraskevopoulos
% Define the transfer function coefficients
numerator = 8.008;
denominator = [1 0.54 7.95]; % Coefficients of s^2, s, and the constant term
% Create the transfer function
sys = tf(numerator, denominator);
% Create the Bode plot
figure;
bode(sys);
grid on;
title('Bode plot of the system');
% Evaluate the frequency response at specific frequencies
f1 = 0.1; % frequency in Hz
f2 = 7.5; % frequency in Hz
w1 = 2 * pi * f1; % Convert to rad/s
w2 = 2 * pi * f2; % Convert to rad/s
response1 = evalfr(sys, 1j*w1);
response2 = evalfr(sys, 1j*w2);
% Display the magnitude and phase of the frequency responses
disp(['Frequency response at ' num2str(f1) ' Hz:']);
Frequency response at 0.1 Hz:
disp(['Magnitude: ' num2str(abs(response1)) ', Phase: ' num2str(angle(response1) * 180/pi) ' degrees']);
Magnitude: 1.0589, Phase: -2.5713 degrees
disp(['Frequency response at ' num2str(f2) ' Hz:']);
Frequency response at 7.5 Hz:
disp(['Magnitude: ' num2str(abs(response2)) ', Phase: ' num2str(angle(response2) * 180/pi) ' degrees']);
Magnitude: 0.0036189, Phase: -179.3411 degrees

更多回答(0 个)

类别

Help CenterFile Exchange 中查找有关 Get Started with Control System Toolbox 的更多信息

产品


版本

R2023b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by