Is it possible to just remove the noisy part of signal?

1. How to remove noise from signal matlab?
2. What does separate the signal from the noise mean?
3. How can you tell if a signal is noisy?

How to remove noise from signal matlab?

You could do Fourier filtering in the spectral domain like Star suggested. This will filter the entire signal. So you have to ask yourself if it's okay to filter the entire signal or if you want just the spike fixed and all the other values to remain untouched.

What does separate the signal from the noise mean?

Signal is the real pattern, the repeatable process that we hope to capture and describe. It is the information that we care about. The signal is what lets the model generalize to new situations. The noise is everything else that gets in the way of that.

How can you tell if a signal is noisy?

Therefore, to ascertain the signal to noise ratio, one must find the quantifiable difference between the desired signal strength and the unwanted noise by subtracting the noise value from the signal strength value.