warover
Newbie level 2
i have a project and i am tring to identify what kind of modulation i have
so i have following symbols(these are given )
s1=sqrt(2)*cos((pi/T)t)
s2=sqrt(2)*cos((2*pi/T)t)
s3=sqrt(2)*cos((3*pi/T)t)
s4=sprt(2)*cos((4*pi/T)t)
I am trying to write a matlab code in order to design the asterism but i do not know what value i have to assign in variable T,t
could anyone help me i have to choose between
4-QAM
4-PSK
4-PAM
4-Orthogonal
could anyone help my on what modulation i have because i am on a dead end thanks
here i attach the matlab code
clear all;
%asterism
k=[0:3];
t= ---
T= ---
Sm=sqrt(2)*cos((k*pi/T)*t);
x=real(Sm);
y=imag(Sm);
scatter(x,y);
grid on;
so i have following symbols(these are given )
s1=sqrt(2)*cos((pi/T)t)
s2=sqrt(2)*cos((2*pi/T)t)
s3=sqrt(2)*cos((3*pi/T)t)
s4=sprt(2)*cos((4*pi/T)t)
I am trying to write a matlab code in order to design the asterism but i do not know what value i have to assign in variable T,t
could anyone help me i have to choose between
4-QAM
4-PSK
4-PAM
4-Orthogonal
could anyone help my on what modulation i have because i am on a dead end thanks
here i attach the matlab code
clear all;
%asterism
k=[0:3];
t= ---
T= ---
Sm=sqrt(2)*cos((k*pi/T)*t);
x=real(Sm);
y=imag(Sm);
scatter(x,y);
grid on;