Towards the perfect decimator

• Autorzy: Hejn, K.
• Języki publikacji: EN

Abstrakty

EN

In this paper a two-phase recursive all-pass network for sampling-rate reduction is presented in which efficiency is achieved by simple binary scaling coefficients and by performing all necessary processing at the half sampling rate. This . network is formed as a sum of two parallel all-pass subf liters with phase shifts selected to add constructively in the passband and destructively in the stop band. The proposed structures offer very desirable properties in comparison to most published sigma-delta implementations which use a blend of simple comb filtering and decimated FIR filters for the post-modulator decimation filtering.

Słowa kluczowe

PL

cyfrowe przetwarzanie sygnałów; konwerter cyfrowy; modulatory

EN

digital signal processing; digital converters; modulators

• Czasopismo: Prace Przemysłowego Instytutu Elektroniki
• Rocznik: 1998
• Tom: nr 132
• Strony: 26-33
• Opis fizyczny: Bibliogr. 10 poz., rys., wykr.

Twórcy

autor

Hejn, K.

• Institute of Electronics Fundamentals, Warsaw University of Technology, Nowowiejska 15/19, 00-665 Warsaw, Poland,