draw the amplitude-frequency characteristic curve of a particular transfer function

传递函数如下

[Aquatris]

So what is your question actually? What did you try and is not working for you?

[立达]

I do not know how to use the following transfer function to draw the above graph of amplitude frequency characteristics, what code should be used or how to achieve it, thank you

Answer 1

[Mathieu NOE]

Simply used your info and coded in matlab

you have now here the right half of the plot , if you need both negative and positive frequency plot (as in your picture), simply mirror the data

Ts = 1;
f = linspace(0,16/(2*Ts),500); % normalized freq vector
s = 1i*(2*pi*f); % s = j*omega

G = (1-exp(-s*Ts))./(s*Ts);

plot(f,abs(G));
xlabel('Normalized Frequency (k/Ts)');
ylabel('|G|');

[立达]

thanks! ! !

[Mathieu NOE]

my pleasure !