DE602006002664D1 - Korrektur von Fehlern bei der Anpassung von zwei I und Q Pfaden - Google Patents

Korrektur von Fehlern bei der Anpassung von zwei I und Q Pfaden

Info

Publication number
DE602006002664D1
DE602006002664D1 DE602006002664T DE602006002664T DE602006002664D1 DE 602006002664 D1 DE602006002664 D1 DE 602006002664D1 DE 602006002664 T DE602006002664 T DE 602006002664T DE 602006002664 T DE602006002664 T DE 602006002664T DE 602006002664 D1 DE602006002664 D1 DE 602006002664D1
Authority
DE
Germany
Prior art keywords
errors
paths
correction
fitting
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.)
Active
Application number
DE602006002664T
Other languages
English (en)
Inventor
Arnaud Moutard
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
Publication of DE602006002664D1 publication Critical patent/DE602006002664D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
    • H03D3/009—Compensating quadrature phase or amplitude imbalances
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/30—Circuits for homodyne or synchrodyne receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3845—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier
    • H04L27/3854—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier using a non - coherent carrier, including systems with baseband correction for phase or frequency offset
    • H04L27/3863—Compensation for quadrature error in the received signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
DE602006002664T 2005-07-06 2006-07-04 Korrektur von Fehlern bei der Anpassung von zwei I und Q Pfaden Active DE602006002664D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0507215A FR2888429A1 (fr) 2005-07-06 2005-07-06 Correction des defauts d'appariement entre deux voies i et q

Publications (1)

Publication Number Publication Date
DE602006002664D1 true DE602006002664D1 (de) 2008-10-23

Family

ID=36045764

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602006002664T Active DE602006002664D1 (de) 2005-07-06 2006-07-04 Korrektur von Fehlern bei der Anpassung von zwei I und Q Pfaden

Country Status (6)

Country Link
US (1) US8121230B2 (de)
EP (1) EP1742375B1 (de)
JP (1) JP4405984B2 (de)
CN (1) CN1897585B (de)
DE (1) DE602006002664D1 (de)
FR (1) FR2888429A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7856065B2 (en) 2007-05-02 2010-12-21 Telefonkaktiebolaget Lm Ericsson (publ) Method and apparatus for correcting IQ imbalance in an OFDM receiver
JP5102738B2 (ja) * 2008-10-27 2012-12-19 シャープ株式会社 Ｉｑミスマッチ補正回路
US8301102B2 (en) * 2009-12-23 2012-10-30 Intel Corporation Correcting quadrature crosstalk contamination in receivers
US8942314B2 (en) * 2013-03-14 2015-01-27 Qualcomm Incorporated Transmit (TX) interference canceller and power detector
WO2015035584A1 (zh) * 2013-09-12 2015-03-19 华为技术有限公司 一种相位误差补偿方法及装置
US10484108B1 (en) 2018-06-13 2019-11-19 Futurewei Technologies, Inc. Transmitter image calibration using phase shift estimation
FR3089736B1 (fr) * 2018-12-11 2020-11-13 Continental Automotive France Procédé de détermination de la distance entre un dispositif d’authentification et un véhicule

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6009317A (en) * 1997-01-17 1999-12-28 Ericsson Inc. Method and apparatus for compensating for imbalances between quadrature signals
US6377620B1 (en) * 1999-01-19 2002-04-23 Interdigital Technology Corporation Balancing amplitude and phase
EP1168597A1 (de) * 2000-06-23 2002-01-02 NTT DoCoMo, Inc. Quadraturempfänger mit Orthogonalitätskorrektur
JP3644504B2 (ja) * 2001-03-14 2005-04-27 松下電器産業株式会社 ディジタル信号送信装置
ATE433242T1 (de) * 2001-06-29 2009-06-15 Nokia Corp Iq-ungleichgewicht
US7020220B2 (en) * 2002-06-18 2006-03-28 Broadcom Corporation Digital estimation and correction of I/Q mismatch in direct conversion receivers
EP1547239A1 (de) * 2002-09-16 2005-06-29 Nokia Corporation DIREKTUMSETZUNGSEMPFûNGER UND EMPFANGSVERFAHREN
FR2853486B1 (fr) 2003-04-03 2005-08-05 St Microelectronics Sa Composant electronique permettant le decodage de signaux de television numerique ou par cable
KR100587951B1 (ko) * 2003-10-09 2006-06-08 한국전자통신연구원 직교복조수신시스템에서의 동위상채널과 직교채널 간이득불일치 보상 및 자동이득조절 장치 및 그 방법

Also Published As

Publication number Publication date
CN1897585B (zh) 2010-10-13
CN1897585A (zh) 2007-01-17
EP1742375B1 (de) 2008-09-10
FR2888429A1 (fr) 2007-01-12
EP1742375A1 (de) 2007-01-10
US20080170651A1 (en) 2008-07-17
JP4405984B2 (ja) 2010-01-27
US8121230B2 (en) 2012-02-21
JP2007020178A (ja) 2007-01-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition