Learn How to Plot Figures in MATLAB: Step-by-Step Guide and Helpful Tips

[Nate Duong]

Dear group,

I am new with MATLAB and trying to plot these figure out as the file request.

I tried but could not get the same plot as the file has.

I hope anyone can help. Here is the code which i am working on.

Thank you.

fc = 553e6;
w   = 0:2*pi*fc*1e-2:100*2*pi*fc;
pau = 0.33;
tau = 0.2e-9; % in nano second

% beta_square = zeros(1,length(w));

beta_square = 1 + 2*pau*cos(w*tau) + pau^2;
theta  = atan(-pau*sin(w*tau)/(1+pau*cos(w*tau)));

figure,plot(w,beta_square)
figure,plot(w,theta)

 

[jedishrfu]

Here's a tutorial on plotting with Matlab:

https://www.tutorialspoint.com/matlab/matlab_plotting.htm

You should be able to find other tutorials at the mathworks website:

https://www.mathworks.com/help/matlab/creating_plots/using-high-level-plotting-functions.html

 

[Dr Transport]

your beta_square is not in dB and the angle is not in degrees you will have to convert.

also

 theta  = atan(-pau*sin(w*tau)./(1+pau*cos(w*tau)));

you need a ./ not just / for the division because w is a vector not a scalar.

 

[Nate Duong]

your beta_square is not in dB and the angle is not in degrees you will have to convert.

also

 theta  = atan(-pau*sin(w*tau)./(1+pau*cos(w*tau)));

you need a ./ not just / for the division because w is a vector not a scalar.

@Dr Transport: oh yeah, I missed that dot, that's why I received only scalar not a vector.
Thank you, for the help.