Naslov
Weighted Minimax Design of Sharpened CIC Filters

Autori
Molnar, Goran ; Vučić, Mladen

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of 20th IEEE International Conference on Electronics, Circuits, and Systems / - , 2013, 869-872

Skup
IEEE International Conference on Electronics, Circuits, and Systems

Mjesto i datum
Abu Dhabi, Ujedinjeni Arapski Emirati, 08.12.2013. - 11.12.2013

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
cascaded-integrator-comb filters; CIC filters; minimax approximation; multirate signal processing; sharpening

Sažetak
Popular multiplierless decimation filter is the cascaded-integrator-comb (CIC) filter. However, the magnitude response of this filter has a high passband droop and poor selectivity. One technique for improving the response is sharpening. In the design of sharpened CIC filters, the Kaiser-Hamming method is well established. It results in maximally flat filters. Recently, the weighted least-squares method has been proposed. It improves the response better than the Kaiser-Hamming method. In this paper, we present a method for the design of sharpened CIC filters by using the weighted minimax error criterion. The method is based on the iterative reweighted least-squares procedure. The features of the presented method are illustrated with the design of narrowband and wideband filters. It is shown that the proposed filters are preferable compared to the maximally flat and the weighted least-squares counterparts.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Računarstvo

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