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Pregled bibliografske jedinice broj: 529576

Zbornik radova

Autori: Matić, Tomislav; Švedek, Tomislav; Herceg, Marijan
Naslov: An Analog Multiplier Based on Asynchronous Sigma-Delta Pulse Amplitude Modulation
( An Analog Multiplier Based on Asynchronous Sigma-Delta Pulse Amplitude Modulation )
Izvornik: Proceedings of TELSIKS 2011 / Milutinović, Bratislav (ur.). - Niš, Srbija : IEEE , 2011. 707-710 (ISBN: 978-86-6125-044-6).
Skup: TELSIKS 2011
Mjesto i datum: Niš, Srbija, 05-08.10.2011.
Ključne riječi: Analog multiplier; asynchronous sigma-delta modulation; pulse-amplitude modulation; duty-cycle
( Analog multiplier; asynchronous sigma-delta modulation; pulse-amplitude modulation; duty-cycle )
Sažetak:
Asynchronous sigma-delta modulation (ASDM) has been proposed as a possible solution for the amplitude to duty-cycle conversion. The information conveyed by voltage level of the ASDM input signal is converted into the duty cycle of the ASDM output signal period. Applying pulse amplitude modulation (PAM) to ASDM output pulse stream, 2-input analog multiplier can be obtained. The mean value of the output pulse stream period corresponds to the product of the ASDM input and PAM input signals. This paper gives the mathematical analysis of the ASDM-PAM analog multiplier output signal spectrum for the DC and sinusoidal input signals. It has been shown that combination of ASDM and PAM modulation generates a product of the two input signals in the baseband and around multiples of the central frequency, which can be later on efficiently filtered out. The ASDM-PAM multiplier Simulink model has been used for confirmation of the mathematical analysis.
Vrsta sudjelovanja: Poster
Vrsta prezentacije u zborniku: Cjeloviti rad (više od 1500 riječi)
Vrsta recenzije: Međunarodna recenzija
Projekt / tema: 165-0361630-3049, 165-0362980-2002, 165-0362027-1479
Izvorni jezik: eng
Kategorija: Znanstveni
Znanstvena područja:
Elektrotehnika,Računarstvo
Upisao u CROSBI: tmatic@etfos.hr (tmatic@etfos.hr), 10. Lis. 2011. u 11:43 sati



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