FR2868640B1 - Demodulateur cofdm a positionnement optimal de fenetre d'analyse fft - Google Patents

Demodulateur cofdm a positionnement optimal de fenetre d'analyse fft

Info

Publication number
FR2868640B1
FR2868640B1 FR0450634A FR0450634A FR2868640B1 FR 2868640 B1 FR2868640 B1 FR 2868640B1 FR 0450634 A FR0450634 A FR 0450634A FR 0450634 A FR0450634 A FR 0450634A FR 2868640 B1 FR2868640 B1 FR 2868640B1
Authority
FR
France
Prior art keywords
analysis window
fft analysis
optimal positioning
cofdm demodulator
cofdm
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
FR0450634A
Other languages
English (en)
Other versions
FR2868640A1 (fr
Inventor
Nicole Alcouffe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STMicroelectronics SA
Original Assignee
STMicroelectronics SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by STMicroelectronics SA filed Critical STMicroelectronics SA
Priority to FR0450634A priority Critical patent/FR2868640B1/fr
Priority to EP05739471A priority patent/EP1733525A1/fr
Priority to US10/594,664 priority patent/US7680195B2/en
Priority to PCT/FR2005/050199 priority patent/WO2005096581A1/fr
Publication of FR2868640A1 publication Critical patent/FR2868640A1/fr
Application granted granted Critical
Publication of FR2868640B1 publication Critical patent/FR2868640B1/fr
Priority to US12/696,069 priority patent/US7961803B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • H04L27/2665—Fine synchronisation, e.g. by positioning the FFT window
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/022—Channel estimation of frequency response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H04L27/2607—Cyclic extensions
FR0450634A 2004-03-31 2004-03-31 Demodulateur cofdm a positionnement optimal de fenetre d'analyse fft Expired - Fee Related FR2868640B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR0450634A FR2868640B1 (fr) 2004-03-31 2004-03-31 Demodulateur cofdm a positionnement optimal de fenetre d'analyse fft
EP05739471A EP1733525A1 (fr) 2004-03-31 2005-03-30 Demodulateur cofdm a positionnement optimal de fenetre d'analyse fft
US10/594,664 US7680195B2 (en) 2004-03-31 2005-03-30 COFDM demodulator with an optimal FFT analysis window positioning
PCT/FR2005/050199 WO2005096581A1 (fr) 2004-03-31 2005-03-30 Demodulateur cofdm a positionnement optimal de fenetre d'analyse fft
US12/696,069 US7961803B2 (en) 2004-03-31 2010-01-29 COFDM demodulator with an optimal FFT analysis window positioning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0450634A FR2868640B1 (fr) 2004-03-31 2004-03-31 Demodulateur cofdm a positionnement optimal de fenetre d'analyse fft

Publications (2)

Publication Number Publication Date
FR2868640A1 FR2868640A1 (fr) 2005-10-07
FR2868640B1 true FR2868640B1 (fr) 2006-06-09

Family

ID=34945502

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0450634A Expired - Fee Related FR2868640B1 (fr) 2004-03-31 2004-03-31 Demodulateur cofdm a positionnement optimal de fenetre d'analyse fft

Country Status (4)

Country Link
US (2) US7680195B2 (fr)
EP (1) EP1733525A1 (fr)
FR (1) FR2868640B1 (fr)
WO (1) WO2005096581A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7760825B2 (en) * 2004-02-19 2010-07-20 Stmicroelectronics S.A. Device and method for suppressing pulse interferences in a signal
FR2897999A1 (fr) * 2006-02-27 2007-08-31 St Microelectronics Sa Procede et dispositif d'estimation de la fonction de transfert du canal de transmission pour demodulateur cofdm
FR2897998A1 (fr) * 2006-02-27 2007-08-31 St Microelectronics Sa Procede et dispositif d'estimation de la fonction de transfert du canal de transmission pour demodulateur cofdm

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW465234B (en) * 1997-02-18 2001-11-21 Discovision Ass Single chip VLSI implementation of a digital receiver employing orthogonal frequency division multiplexing
KR100265735B1 (ko) * 1997-11-25 2000-09-15 윤종용 Fft윈도우위치복원과샘플링클럭제어가연동되는ofdm수신장치및그방법
FI106592B (fi) * 1998-05-07 2001-02-28 Nokia Multimedia Network Termi Menetelmä ja laite symbolitahdistuksen saavuttamiseksi ja ylläpitämiseksi erityisesti OFDM-järjestelmässä
FR2790344B1 (fr) * 1999-02-26 2001-05-18 St Microelectronics Sa Demodulateur cofdm avec compensation de deplacement de fenetre d'analyse fft
EP1063824B1 (fr) * 1999-06-22 2006-08-02 Matsushita Electric Industrial Co., Ltd. Synchronisation de symboles dans des récepteurs multiporteuses
GB2365714A (en) * 2000-03-15 2002-02-20 Conexant Digital Infotainment Minimising effects of inter-symbol interference in receiver
GB2369016B (en) * 2000-11-09 2004-06-09 Sony Uk Ltd Receiver
US7058147B2 (en) * 2001-02-28 2006-06-06 At&T Corp. Efficient reduced complexity windowed optimal time domain equalizer for discrete multitone-based DSL modems
GB2376855A (en) * 2001-06-20 2002-12-24 Sony Uk Ltd Determining symbol synchronisation in an OFDM receiver in response to one of two impulse response estimates
FR2835136A1 (fr) 2002-01-22 2003-07-25 St Microelectronics Sa Demodulateur cofdm a positionnement optimal de fenetre d'analyse fft
GB0215639D0 (en) * 2002-07-05 2002-08-14 British Broadcasting Corp OFDM receivers
US20040105512A1 (en) * 2002-12-02 2004-06-03 Nokia Corporation Two step synchronization procedure for orthogonal frequency division multiplexing (OFDM) receivers

Also Published As

Publication number Publication date
US20070110173A1 (en) 2007-05-17
US7961803B2 (en) 2011-06-14
US20100135427A1 (en) 2010-06-03
WO2005096581A1 (fr) 2005-10-13
FR2868640A1 (fr) 2005-10-07
US7680195B2 (en) 2010-03-16
EP1733525A1 (fr) 2006-12-20

Similar Documents

Publication Publication Date Title
DE602005009763D1 (de) Anordnung zur Überwachung einer Lageranordnung
DE602005016343D1 (de) Bestimmung eines freien Kanals
NO20024477L (no) Prövetakning med redusert forurensning
SE0301624L (sv) Ultraljudssond med en central öppning
FR2884094B1 (fr) Dispositif d'analyse d'image
DE60311216D1 (de) Zweiteiliger Ansaugkrümmer
FR2889674B1 (fr) Manchon d'adaptation, ensemble et procede de montage correspondants
FR2842873B1 (fr) Structure de carburateur
FR2850163B1 (fr) Instrument a aiguille avec aiguille double
FR2868640B1 (fr) Demodulateur cofdm a positionnement optimal de fenetre d'analyse fft
FR2895470B1 (fr) Palier a roulement a passage d'air optionnel
FR2899624B1 (fr) Agencement d'un ouvrant sur un support
FR2790344B1 (fr) Demodulateur cofdm avec compensation de deplacement de fenetre d'analyse fft
FR2887949B1 (fr) Billage embarque sur doigt de passage
FR2881794B1 (fr) Turbomachine pourvue d'un moyen de reduction du bruit
DE602005008322D1 (de) Abtastschaltung
FR2867125B1 (fr) Balai d'essuie-glace
FR2885631B1 (fr) Verrou a element de fixation du rotor
FR2873746B1 (fr) Element de ligne d'echappement
FR2893057B1 (fr) Structure d'intervention sur toiture
DE10391070D2 (de) Biopsieinstrument
FR2883766B1 (fr) Planche d'apprentissage de la nage
FR2894556B1 (fr) Element de planche de bord d'automobile a plastron et coiffe
FR2897089B3 (fr) Gabarit de pose d'ensemble de porte sur plaque
FR2861931B1 (fr) Demodulateur numerique a faible frequence d'echantillonnage

Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20071130