ashwini1
Member level 1
i and q signals
Hi,
I have read in one document that the phase of a signal (say sine wave) can be calculated by making use of I and Q signals of it. For ex:
Fs = 10e3;
t=(0:Fs)/Fs';
ph=45;
x=sin(2*pi*50*t+(ph*pi/180));
i=x.*cos(2*pi*50*t);
q=x.*sin(2*pi*50*t);
it was mentioned that by subtracting the max values of i and q, i will get the ph value.
But that is not happening.
what is wrong with this ??
i have to make use of i and q signals to find the ph.
Can anyone help me plz..
Ashwini
Hi,
I have read in one document that the phase of a signal (say sine wave) can be calculated by making use of I and Q signals of it. For ex:
Fs = 10e3;
t=(0:Fs)/Fs';
ph=45;
x=sin(2*pi*50*t+(ph*pi/180));
i=x.*cos(2*pi*50*t);
q=x.*sin(2*pi*50*t);
it was mentioned that by subtracting the max values of i and q, i will get the ph value.
But that is not happening.
what is wrong with this ??
i have to make use of i and q signals to find the ph.
Can anyone help me plz..
Ashwini