How to recover the original signal using ifft
Hello everyone,
I’ve written a code to test the ifft function in MATLAB. However, I’ve noticed that ifft returns the same number of points as fft. I’m aiming to recover the original signal, which had 1000 points along with the time vector, t. How can I achieve this?
Thanks in advance for your help!
clear;clc;close all;
dt=2.5e-9;
f = 10e6;
Nfft=8*4096;
t = (0:1000-1)*dt;
sinal = sin(2*pi*f*t);
figure(1)
plot(t,sinal)
%Cálculo da fft
fftsinal=fft(sinal,Nfft);
%Transformada inversa de Fourier
sinal_recuperado = real(ifft(fftsinal,Nfft));
figure(2)
plot(1:Nfft,sinal_recuperado);Hello everyone,
I’ve written a code to test the ifft function in MATLAB. However, I’ve noticed that ifft returns the same number of points as fft. I’m aiming to recover the original signal, which had 1000 points along with the time vector, t. How can I achieve this?
Thanks in advance for your help!
clear;clc;close all;
dt=2.5e-9;
f = 10e6;
Nfft=8*4096;
t = (0:1000-1)*dt;
sinal = sin(2*pi*f*t);
figure(1)
plot(t,sinal)
%Cálculo da fft
fftsinal=fft(sinal,Nfft);
%Transformada inversa de Fourier
sinal_recuperado = real(ifft(fftsinal,Nfft));
figure(2)
plot(1:Nfft,sinal_recuperado); Hello everyone,
I’ve written a code to test the ifft function in MATLAB. However, I’ve noticed that ifft returns the same number of points as fft. I’m aiming to recover the original signal, which had 1000 points along with the time vector, t. How can I achieve this?
Thanks in advance for your help!
clear;clc;close all;
dt=2.5e-9;
f = 10e6;
Nfft=8*4096;
t = (0:1000-1)*dt;
sinal = sin(2*pi*f*t);
figure(1)
plot(t,sinal)
%Cálculo da fft
fftsinal=fft(sinal,Nfft);
%Transformada inversa de Fourier
sinal_recuperado = real(ifft(fftsinal,Nfft));
figure(2)
plot(1:Nfft,sinal_recuperado); signal recovery MATLAB Answers — New Questions