AB = C (time domain data)
A and C : known
B : unkown
length of A,B and C is 512
df1 = 0:fs/N1:(N1-1)*fs/N1;
fft_Mag_A(1) = (1/N1)*abs(fft1(1));
fft_Mag_A(2:nr) = (2/N1)*abs(fft1(2:nr));
fft_Phase_A = angle(fft1(1:nr));
fft_Mag_C(1) = (1/N1)*abs(fft1(1));
fft_Mag_C(2:nr) = (2/N1)*abs(fft1(2:nr));
fft_Phase_C = angle(fft1(1:nr));
B = fft_Mag_C/fft_Mag_A*cos(w*t+fft_Phase_C - fft_Phase_A);
fft_Mag_B(1) = (1/N1)*abs(fft3(1));
fft_Mag_B(2:nr) = (2/N1)*abs(fft3(2:nr));
fft_Phase_B(1:nr) = angle(fft3(1:nr));
C1 = fft_Mag_A*fft_Mag_B*cos(w*t+fft_Phase_A+fft_Phase_B)
here is a problem.
why C1 and C(data) doesn't match perfectly each other when i draw graph?
There's a slight error.