Filter Functions with Exponential Convergence Order
Filter Functions with Exponential Convergence Order
Abstract Oversampled functions can be evaluated using generalized sinc‐series and filter functions connected with these series. A standard filter function is given by exp ((ζ 2 − 1) −1 ). We show that the Fourier transform of this filter posseses the convergence order 0 (exp (−√ x )), improving an …