WeightedSavitzkyGolaySmootherSavitzkyGolayBandwidth Method

Parameters

degree  Int32

The degree of the polynomial fit used in the SG filter.

m  Int32

The half-width of the SG kernel. The kernel size of the SG filter (i.e. the number of points for fitting the polynomial) is 2*m + 1.

Return Value

Double
The -3 dB bandwidth of the SG filter, i.e. the frequency where the response is 1/sqrt(2). The sampling frequency is defined as f = 1. For degree up to 10, the accuracy is typically much better than 1%; higher errors occur only for the lowest m values where the SG filter is defined (worst case: 4% error at degree = 10, m = 6).