A Simulation Study of Eliminating Gibbs Phenomenon in Digital Filter
Pan Shu-qin · Techniques of Automation and Applications · 2004
To eliminate the Gibbs phenomenon in digital filters, synthetic method of both improved window functions and changed truncation length of filter factors is studied. Being difficult to control cut-off frequency of passband and band-rejection, A new method of data flipping is proposed. This method reduces effect which Gibbs phenomenon brings via converting input signal before coming into filters. Emulational results indicate that data flipping method can be more effective to delete Gibbs phenomenon compared with synthetic method.