Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloFPGA Design and Performance Evaluation of a Pulse-Based Echo Canceller for DVB-T/H
Anno di pubblicazione2012
Formato
  • Elettronico
  • Cartaceo
Autore/iChiurco, G.; Mazzotti, M.; Zabini, F.; Dardari, D.; Andrisano, O.
Affiliazioni autoriArray; Array
Autori CNR e affiliazioni
  • ORESTE ANDRISANO
  • DAVIDE DARDARI
Lingua/e
  • inglese
AbstractThe main design issues and performance characterization of an echo canceller for digital on-channel repeaters (OCRs) applicable to multiple standards for communications and broadcasting are addressed. In particular, in this paper we focus on a DVB-T/H scenario. The low-complexity channel cancellation technique here described is based on the introduction of a negative feedback loop capable to counterbalance the coupling effects between the OCR antennas (echoes). In the initial phase, locally generated pulse trains are transmitted to estimate the coupling channel between the transmitting and the receiving antennas. This first echo estimation is used to set-up the canceling unit, whose purpose is to generate a properly filtered replica of the repeated DVB-T/H signal compensating the echoes. After the initial set-up of the system, efficient tracking of the echoes can be performed through conventional least mean square (LMS) techniques. After developing a proper theoretical model, we introduce and discuss some important performance figures such as mean rejection ratio (MRR) and echo suppression at nominal position (ESNP). Then, a detailed description of our implementation of the echo canceller on a field programmable gate array (FPGA) board is reported. Finally, the performance of our prototype is evaluated and the measurement results are compared with those derived by the analytical model.
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da660
Pagine a668
Pagine totali9
RivistaIEEE transactions on broadcasting
Attiva dal 1963
Editore: Institute of Electrical and Electronics Engineers] - [New York,
Paese di pubblicazione: Stati Uniti d'America
Lingua: inglese
ISSN: 0018-9316
Titolo chiave: IEEE transactions on broadcasting
Titolo proprio: IEEE transactions on broadcasting.
Titolo abbreviato: IEEE trans. broadcast.
Titoli alternativi:
  • Transactions on broadcasting
  • Broadcasting
Numero volume della rivista58
Fascicolo della rivista4
DOI10.1109/TBC.2012.2199589
Verificato da refereeSì: Internazionale
Stato della pubblicazionePublished version
Indicizzazione (in banche dati controllate)
  • ISI Web of Science (WOS) (Codice:000311680000016)
Parole chiaveDigital video broadcasting, echo canceller, field programmable gate arrays, repeater
Link (URL, URI)-
Titolo parallelo-
Data di accettazione-
Note/Altre informazioni-
Strutture CNR
  • IEIIT — Istituto di elettronica e di ingegneria dell'informazione e delle telecomunicazioni
Moduli CNR
  • ICT.P07.006.001 : Reti wireless per il monitoraggio ambientale e info-mobilità
Progetti Europei-
Allegati
articolo pdf (documento privato )
Tipo documento: application/pdf