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1. (WO2002082668) EQUALIZER FOR COMMUNICATION OVER NOISY CHANNELS
Dernières données bibliographiques dont dispose le Bureau international   

N° de publication :    WO/2002/082668    N° de la demande internationale :    PCT/IL2002/000261
Date de publication : 17.10.2002 Date de dépôt international : 27.03.2002
CIB :
H04L 25/02 (2006.01), H04L 25/03 (2006.01)
Déposants : ITRAN COMMUNICATIONS LTD. [IL/IL]; 9 Yehoshua Hatzoref St., 84106 Beer Sheva (IL) (Tous Sauf US).
RAPHAELI, Dan [IL/IL]; (IL) (US Seulement)
Inventeurs : RAPHAELI, Dan; (IL)
Mandataire : ZARETSKY, Howard; Zaretsky & Associates PC, 8753 West Runion Dr, Peoria, AZ 85382-6412 (US)
Données relatives à la priorité :
09/825,268 03.04.2001 US
Titre (EN) EQUALIZER FOR COMMUNICATION OVER NOISY CHANNELS
(FR) EQUALIZER FOR COMMUNICATION OVER NOISY CHANNELS
Abrégé : front page image
(EN)An apparatus for and a method of iterative equalization for communication over noisy channels suitable for use with a wide range of different types of communications systems and channels and is particularly applicable to power line based communication systems. The equalization of the received symbol is achieved by iteratively removing the influence of previous symbols dispersed due to channel ISI (34). Equalization is performed using iterative subtraction in combination with calculations based on the inverse of the transfer matrix. The impulse function of previous symbols is subtracted out to yield the impulse response of the received symbol (30). The estimate of the current symbol &Bgr;n is then calculated by passing the modified received symbol through a matched filter which functions to remove the effect of channel ISI from the symbol (36). Multiple iterations are performed to improve the accuracy of the resultant symbol decision (40).
(FR)An apparatus for and a method of iterative equalization for communication over noisy channels suitable for use with a wide range of different types of communications systems and channels and is particularly applicable to power line based communication systems. The equalization of the received symbol is achieved by iteratively removing the influence of previous symbols dispersed due to channel ISI. Equalization is performed using iterative subtraction in combination with calculations based on the inverse of the transfer matrix. The impulse response of previous symbols is subtracted out to yield the impulse response of the received symbol. The estimate of the current symbol $g(b)¿n? is then calculated by passing the modified received symbol through a matched filer which functions to remove the effect of channel ISI from the symbol. Multiple iterations are performed to improve the accuracy of the resultant symbol decision.
États désignés : AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, OM, PH, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZM, ZW.
Organisation régionale africaine de la propriété intellectuelle (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Office eurasien des brevets (OEAB) (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
Office européen des brevets (OEB) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR)
Organisation africaine de la propriété intellectuelle (OAPI) (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Langue de publication : anglais (EN)
Langue de dépôt : anglais (EN)