Savitzky-Golay which property preserves peak shape?

1. What does the Savitzky − Golay − filter do to the spectra of different features?
2. How does Savgol filter work?
3. Why the Savitzky-Golay filter?
4. What is a Savitzky-Golay Filter IEEE?

What does the Savitzky − Golay − filter do to the spectra of different features?

The Savitzky–Golay filter preserves the peak shape property and reduces the signal-to-noise ratio.

How does Savgol filter work?

The Savitzky-Golay (savgol) Filter: For a given signal measured at N points and a filter of width, w, savgol calculates a polynomial fit of order o in each filter window as the filter is moved across the signal. This is shown for three filter windows in the left of Figure 1 for w = 7.

Why the Savitzky-Golay filter?

A Savitzky–Golay filter is a digital filter that can be applied to a set of digital data points for the purpose of smoothing the data, that is, to increase the precision of the data without distorting the signal tendency.

What is a Savitzky-Golay Filter IEEE?

Metadata. Abstract: A Savitzky-Golay (SG) filter, widely used in signal processing applications, is a finite-impulse-response low-pass filter obtained by a local polynomial regression on noisy observations in the least-squares sense.