What is your favourite method which would help reduce the Gibbs phenomenon in Fourier Series and Fourier Transforms? The oscillations or ringing takes place near band-edge of the filter. filter fourier series - Gibbs phenomenon in Hamming's digital filters Wie das Gibbs-Phänomen Messprobleme erzeugt The Gibbs phenomenon in the Fourier transform is due to a periodicity discrepancy between the waveform and its sinusoidal representations in the time domain. In Section 3 we describe the spectral reprojection method, which was introduced in [25] and further analyzed in [26, 29, 27, 28, 30, 31]. Filter Designing - slideshare.net