FR2859055B1 - Procede et dispositif de traitement des defauts d'appariement entre deux voies en quadrature d'une chaine d'une reception adaptee par exemple a la reception d'un signal module selon une modulation du type ofdm - Google Patents

Procede et dispositif de traitement des defauts d'appariement entre deux voies en quadrature d'une chaine d'une reception adaptee par exemple a la reception d'un signal module selon une modulation du type ofdm

Info

Publication number
FR2859055B1
FR2859055B1 FR0309988A FR0309988A FR2859055B1 FR 2859055 B1 FR2859055 B1 FR 2859055B1 FR 0309988 A FR0309988 A FR 0309988A FR 0309988 A FR0309988 A FR 0309988A FR 2859055 B1 FR2859055 B1 FR 2859055B1
Authority
FR
France
Prior art keywords
quadrature
channels
chain
receiving
signal according
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
FR0309988A
Other languages
English (en)
Other versions
FR2859055A1 (fr
Inventor
Pierre Busson
Bruno Paille
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 FR0309988A priority Critical patent/FR2859055B1/fr
Priority to US10/919,796 priority patent/US7149485B2/en
Publication of FR2859055A1 publication Critical patent/FR2859055A1/fr
Application granted granted Critical
Publication of FR2859055B1 publication Critical patent/FR2859055B1/fr
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
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
    • 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
    • H04L27/2649—Demodulators
    • H04L27/26524—Fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators in combination with other circuits for demodulation
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03414—Multicarrier
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03522—Frequency domain

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Superheterodyne Receivers (AREA)
FR0309988A 2003-08-18 2003-08-18 Procede et dispositif de traitement des defauts d'appariement entre deux voies en quadrature d'une chaine d'une reception adaptee par exemple a la reception d'un signal module selon une modulation du type ofdm Expired - Fee Related FR2859055B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR0309988A FR2859055B1 (fr) 2003-08-18 2003-08-18 Procede et dispositif de traitement des defauts d'appariement entre deux voies en quadrature d'une chaine d'une reception adaptee par exemple a la reception d'un signal module selon une modulation du type ofdm
US10/919,796 US7149485B2 (en) 2003-08-18 2004-08-17 Method and device for processing mismatches between two quadrature paths of a chain of a reception adapted for example to the reception of a signal modulated according to a modulation of the OFDM type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0309988A FR2859055B1 (fr) 2003-08-18 2003-08-18 Procede et dispositif de traitement des defauts d'appariement entre deux voies en quadrature d'une chaine d'une reception adaptee par exemple a la reception d'un signal module selon une modulation du type ofdm

Publications (2)

Publication Number Publication Date
FR2859055A1 FR2859055A1 (fr) 2005-02-25
FR2859055B1 true FR2859055B1 (fr) 2005-12-30

Family

ID=34112804

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0309988A Expired - Fee Related FR2859055B1 (fr) 2003-08-18 2003-08-18 Procede et dispositif de traitement des defauts d'appariement entre deux voies en quadrature d'une chaine d'une reception adaptee par exemple a la reception d'un signal module selon une modulation du type ofdm

Country Status (2)

Country Link
US (1) US7149485B2 (fr)
FR (1) FR2859055B1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI318526B (en) * 2006-02-10 2009-12-11 Realtek Semiconductor Corp Quadrature modulation transceiver and parameter estimating method thereof for iq imbalance calibration
US7598827B2 (en) 2006-06-19 2009-10-06 Maxim Integrated Products Harmonic termination of power amplifiers using BAW filter output matching circuits
US7586389B2 (en) * 2006-06-19 2009-09-08 Maxim Integrated Products, Inc. Impedance transformation and filter using bulk acoustic wave technology
US8290031B1 (en) * 2006-08-14 2012-10-16 The Board Of Trustees Of The Leland Stanford Junior University Arrangements and methods for providing compensation for non-idealities of components in communications systems
FR2910743B1 (fr) * 2006-12-22 2009-02-20 Thales Sa Banque de filtres numeriques cascadable, et circuit de reception comportant une telle banque de filtre en cascade.
FR2914515B1 (fr) 2007-04-02 2009-07-03 St Microelectronics Sa Calibration dans un module d'emission radio frequence
KR101501578B1 (ko) * 2008-11-05 2015-03-11 삼성전자주식회사 Ｉ신호와 ｑ신호의 미스매치를 보상할 수 있는 수신기 및 이를 포함하는 통신시스템

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4238697A (en) * 1996-08-29 1998-03-19 Cisco Technology, Inc. Spatio-temporal processing for communication
KR100226698B1 (ko) * 1996-12-28 1999-10-15 전주범 직교 주파수 분할 다중화 수신 시스템의 채널 등화 장치
US7088765B1 (en) * 2000-03-15 2006-08-08 Ndsu Research Foundation Vector calibration system
US6898252B1 (en) * 2000-07-21 2005-05-24 Intel Corporation IQ mismatch cancellation
US7177372B2 (en) * 2000-12-21 2007-02-13 Jian Gu Method and apparatus to remove effects of I-Q imbalances of quadrature modulators and demodulators in a multi-carrier system
US6760577B2 (en) * 2001-03-29 2004-07-06 Maxim Integrated Products, Inc. Alignment methods and apparatus for I/Q phase and amplitude error correction and image rejection improvement
US6785529B2 (en) * 2002-01-24 2004-08-31 Qualcomm Incorporated System and method for I-Q mismatch compensation in a low IF or zero IF receiver
US20030236073A1 (en) * 2002-03-05 2003-12-25 Gunnar Wetzker Correction of mismatch between in-phase and quadrature signals in a radio receiver
US6999744B2 (en) * 2002-09-26 2006-02-14 Broadcom Corp Measurement of local oscillation leakage in a radio frequency integrated circuit
KR100468359B1 (ko) * 2002-10-31 2005-01-27 인티그런트 테크놀로지즈(주) 국부 발진 신호 경로를 통한 동 위상 및 직교 위상 신호간 부정합 보정 회로를 이용한 국부 발진기 및 이를이용한 수신 장치
US7146146B2 (en) * 2003-01-31 2006-12-05 Ditrans Ip, Inc. Systems and methods for coherent adaptive calibration in a receiver
US7570923B2 (en) * 2004-05-18 2009-08-04 Agere Systems Inc. I/Q compensation of frequency dependent response mismatch in a pair of analog low-pass filters
JP4381945B2 (ja) * 2004-09-30 2009-12-09 株式会社ルネサステクノロジ 受信機、受信方法及び携帯無線端末
US20060133548A1 (en) * 2004-12-17 2006-06-22 Joungheon Oh Apparatus and method to calibrate amplitude and phase imbalance for communication receivers

Also Published As

Publication number Publication date
US7149485B2 (en) 2006-12-12
FR2859055A1 (fr) 2005-02-25
US20050208895A1 (en) 2005-09-22

Similar Documents

Publication Publication Date Title
FR2859055B1 (fr) Procede et dispositif de traitement des defauts d'appariement entre deux voies en quadrature d'une chaine d'une reception adaptee par exemple a la reception d'un signal module selon une modulation du type ofdm
EP1398913A3 (fr) Utilisation d'informations de localisation générées sous forme de signal pour l'identification et le listage des appareils disponibles
SG129443A1 (en) Apparatus and method for direct memory access in ahub-based memory system
WO2005060696A3 (fr) Procedes et appareil permettant d'ameliorer la detection d'echantillons fondee sur des ions au moyen d'une pre-separation et d'une amplification
WO2005029753A3 (fr) Procede et appareil pour detecter efficacement un preambule dans des recepteurs de donnees numeriques
DE60309679D1 (de) Vorrichtung und verfahren zur reduzierung des leistungsverbrauchs eines senders und empfängers, gekoppelt über eine serielle differenzialedatenverbindung
HK1066879A1 (en) Information display system and information processing device, indicating device as well as mark display method
EA200500356A1 (ru) Способы обнаружения амниотической жидкости во влагалищном секрете и устройства для реализации указанных способов
EP1727289A3 (fr) Récepteur monté sur un véhicule avec distorsions réduit, sensibilité amelioré et économie d'énergie
MY127189A (en) Process for the preparation of alkylamines
FR2875023A1 (fr) Dispositif de detection du raccordement d'appareils peripheriques a un systeme principal
ATE253267T1 (de) Vorrichtung zum trennen des frequenzbands eines eingangssignals
AU3670099A (en) A method and apparatus for selectively extracting and compressing trace samples from a carrier to enhance detection
AU2003206197A1 (en) An apparatus for detecting symbol timing in an ofdm system
TWI266454B (en) Connector assembly with actuation system
DE50100829D1 (de) Vorrichtung zum Befestigen von Gurtverbindern an Transportgurten
ITRE930090A0 (it) Dispositivo per macchine smontagomme in genere, atto ad agevolare lo smontaggio e il montaggio dei pneumatici dai e sui rispettivi cerchio-ni.
AU2002304724A1 (en) Method and device for identifying volatile substances in solution
FR2792476B1 (fr) Procede de type arq pour procede de transmission utilisant des turbo-codes, et dispositif associe
DE60126229D1 (de) Vorrichtung zum Befestigen eines Bauteils an einen Träger und diese Vorrichtung verwendendes System zum kontrollierten, formschlüssigen Befestigen eines hölzernen Kraftfahrzeugbauteils
TW200635263A (en) Device and procedure for retransmitting digital channels transmitted at specific frequencies within a spectral zone common to the transmission of analogue channels
DE59905480D1 (de) Vorrichtung zur verbesserten entnahmefähigkeit von beutelinhalten
FR2784362B1 (fr) Dispositif de tri des dechets quotidiens
WO2006130386A3 (fr) Procede et appareil d'indication par signal d'une connexion de liaison de communication
EP1775853A4 (fr) Dispositif et procede de saturation de signaux multiporteuse

Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20150430