DE69929013D1 - Phasenschätzung bei Trägerrückgewinnung für QAM-Signale - Google Patents

Phasenschätzung bei Trägerrückgewinnung für QAM-Signale

Info

Publication number
DE69929013D1
DE69929013D1 DE69929013T DE69929013T DE69929013D1 DE 69929013 D1 DE69929013 D1 DE 69929013D1 DE 69929013 T DE69929013 T DE 69929013T DE 69929013 T DE69929013 T DE 69929013T DE 69929013 D1 DE69929013 D1 DE 69929013D1
Authority
DE
Germany
Prior art keywords
carrier recovery
phase estimation
qam signals
qam
signals
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 - Lifetime
Application number
DE69929013T
Other languages
English (en)
Other versions
DE69929013T2 (de
Inventor
Alan Gatherer
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
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 Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of DE69929013D1 publication Critical patent/DE69929013D1/de
Application granted granted Critical
Publication of DE69929013T2 publication Critical patent/DE69929013T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04L27/32—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
    • H04L27/3872—Compensation for phase rotation in the demodulated signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
DE69929013T 1998-09-25 1999-09-24 Phasenschätzung bei Trägerrückgewinnung für QAM-Signale Expired - Lifetime DE69929013T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10183098P 1998-09-25 1998-09-25
US101830P 1998-09-25

Publications (2)

Publication Number Publication Date
DE69929013D1 true DE69929013D1 (de) 2006-01-26
DE69929013T2 DE69929013T2 (de) 2006-08-17

Family

ID=22286631

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69929013T Expired - Lifetime DE69929013T2 (de) 1998-09-25 1999-09-24 Phasenschätzung bei Trägerrückgewinnung für QAM-Signale

Country Status (4)

Country Link
US (1) US6560294B1 (de)
EP (1) EP0989707B1 (de)
CN (1) CN1144437C (de)
DE (1) DE69929013T2 (de)

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US7200185B2 (en) * 2000-08-21 2007-04-03 Viasat, Inc. Star receiver burst processing
US7991044B1 (en) * 2000-11-22 2011-08-02 Sunrise Telecom Incorporated System and method for automatic diagnosis of impairments in a digital quadrature amplitude modulated signal
US7079574B2 (en) * 2001-01-17 2006-07-18 Radiant Networks Plc Carrier phase recovery system for adaptive burst modems and link hopping radio networks
JP4864286B2 (ja) * 2001-06-22 2012-02-01 トムソン ライセンシング 搬送周波数オフセットを補償する方法およびシステム
US7173980B2 (en) * 2002-09-20 2007-02-06 Ditrans Ip, Inc. Complex-IF digital receiver
KR100486269B1 (ko) * 2002-10-07 2005-04-29 삼성전자주식회사 고 선명 텔레비전의 반송파 복구 장치 및 방법.
US7076233B2 (en) * 2003-03-28 2006-07-11 Sandbridge Technologies, Inc. AM receiver and demodulator
US7889804B2 (en) * 2003-05-30 2011-02-15 Mohammad Jaber Borran Partially coherent constellations for multiple-antenna systems
US7496361B1 (en) 2004-07-19 2009-02-24 Rockwell Collins, Inc. Configurable cabin antenna system and placement process
US8542714B2 (en) * 2005-07-29 2013-09-24 U-Blox Ag Method and system for reconstructing time of transmit from assisted or weak signal GPS observations
DE602005007213D1 (de) * 2005-08-12 2008-07-10 St Microelectronics Belgium Nv Empfänger für erweiterte Datenrate mit einer Abtastrate des AD-Wandlers von einem gebrochenen Vielfachen der Symbolrate
EP1753193B1 (de) * 2005-08-12 2009-12-09 STMicroelectronics Belgium N.V. Empfänger mit Verschiebungskompensation des Taktsignals
CA2658148C (en) * 2006-07-14 2013-10-15 Nokia Siemens Networks Gmbh & Co. Kg A receiver structure and method for the demodulation of a quadrature-modulated signal
US20080107222A1 (en) * 2006-11-06 2008-05-08 L3 Communications Integrated Systems, L.P. System and method for signal phase correction
US7940861B2 (en) 2007-12-07 2011-05-10 Advantech Advanced Microwave Technologies, Inc. QAM phase error detector
EP2068521B1 (de) * 2007-12-07 2013-08-14 Advantech Wireless Inc. QAM-Phasenfehlerdetektor
WO2009071433A1 (en) * 2007-12-07 2009-06-11 Advantech Advanced Microwave Technologies Inc. Qam phase error detector
JP5218173B2 (ja) * 2009-03-12 2013-06-26 富士通株式会社 無線送信機の位相補正装置、無線送信機の歪補償装置
JP5418679B2 (ja) * 2009-08-13 2014-02-19 富士通株式会社 １６ｑａｍデータ変調のための位相再生装置、位相再生方法、および受信器
US8477877B2 (en) 2010-06-23 2013-07-02 At&T Intellectual Property I, L.P. Feed-forward carrier phase recovery for optical communications
CN102148795A (zh) * 2010-07-14 2011-08-10 华为技术有限公司 一种载波相位估计方法及装置
US8908809B2 (en) 2010-12-15 2014-12-09 At&T Intellectual Property I, L.P. Complexity reduced feed forward carrier recovery methods for M-QAM modulation formats
CN103378921B (zh) * 2012-04-17 2016-08-03 华为技术有限公司 信号解调方法和装置
WO2015072515A1 (ja) * 2013-11-15 2015-05-21 独立行政法人産業技術総合研究所 受信信号処理装置、通信システム及び受信信号処理方法
TWI565272B (zh) * 2015-01-28 2017-01-01 晨星半導體股份有限公司 通訊系統及其相位誤差估計方法
CN105763265A (zh) * 2016-04-25 2016-07-13 武汉光迅科技股份有限公司 一种相干光接收装置中的载波相位估计方法
CN111314262B (zh) * 2020-02-28 2023-03-28 西南电子技术研究所（中国电子科技集团公司第十研究所） 低信噪比环境16qam载波同步系统
CN111555819B (zh) * 2020-04-22 2021-07-16 华南理工大学 一种载波相位估计和补偿方法及系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2542536B1 (fr) 1983-03-07 1985-07-12 Trt Telecom Radio Electr Dispositif de recuperation de la porteuse d'un signal d'entree module par sauts d'amplitude et par sauts de phase
US5519733A (en) 1994-05-05 1996-05-21 General Instrument Corporation Of Delaware Method and apparatus for recovering a qam carrier
US5970093A (en) * 1996-01-23 1999-10-19 Tiernan Communications, Inc. Fractionally-spaced adaptively-equalized self-recovering digital receiver for amplitude-Phase modulated signals

Also Published As

Publication number Publication date
EP0989707B1 (de) 2005-12-21
US6560294B1 (en) 2003-05-06
EP0989707A3 (de) 2003-08-06
EP0989707A2 (de) 2000-03-29
DE69929013T2 (de) 2006-08-17
CN1265547A (zh) 2000-09-06
CN1144437C (zh) 2004-03-31

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