Odjel za električne krugove i sustave bavi se teorijom, analizom, oblikovanjem (računalno potpomognuto oblikovanje), praktičnom primjenom krugova i primjena teoretskih metoda analize krugova na sustave i obradu signala. Ovo područje pokriva čitav niz aktivnosti od osnovne znanstvene teorije do industrijskih primjena.
Odjel za električne krugove i sustave
Poštovane članice i članovi Hrvatske sekcije IEEE,
Pozivamo Vas na 2. predavanje ove godine u organizaciji Odjela za električne krugove i sustave
(Circuits and Systems-CAS 04) i Hrvatske sekcije IEEE
i Zavoda za elektroničke sustave i obradbu informacija (ZESOI)
koje će se održati u utorak 18. Prosinca 2012. u 12:30 sati u ZESOI knjižnici D115 (uz voće)
Predavač je:
Dr. sc. Goran Molnar
Naslov predavanja je:
FIR Fractional Hilbert Transformers With Raised-Cosine Magnitude Response
Predavanje je o radu koji je prezentiran na konferenciji:
ICECS 2012 - International Conference on Electronics, Circuits and Systems
December 09-12, 2012
Seville, Spain
Predavanje je otvoreno za sve zainteresirane, a posebno pozivamo studente!
S poštovanjem,
prof. dr. sc. Dražen Jurišić
Predsjednik Odjela za električne krugove i sustave Hrvatske sekcije IEEE
| Paper Title: | FIR Fractional Hilbert Transformers with Raised-Cosine Magnitude Response |
| Student Contest: | No |
| Affiliation Type: | Academia |
| Keywords: | Fractional Hilbert Transformer, Conventional Hilbert Transformer, FIR, Raised Cosine, Fourier Series Method |
| Abstract: | Fractional Hilbert transformers find applications in communications and image processing. Various methods have been developed for their design. Some of them start from previously designed conventional Hilbert transformer, whereas others perform the design directly. In this paper, we present a closed-form method for the design of FIR fractional Hilbert transformers, which is based on well-known Fourier series method. The presented method results in transformers whose transfer functions approximate raised-cosine magnitude response with fractional phase shift in the least-squares sense. We used such frequency response because the corresponding impulse response is well localized in time, what enables the use of the Fourier series method without additional window function. The features of the proposed transformers are illustrated by examples which include the design of fractional and conventional transformers as well as complex Hilbert filters. |