AU2000244907A1 - Blind carrier offset detection for quadrature modulated digital communication systems - Google Patents

Blind carrier offset detection for quadrature modulated digital communication systems

Info

Publication number
AU2000244907A1
AU2000244907A1 AU2000244907A AU4490700A AU2000244907A1 AU 2000244907 A1 AU2000244907 A1 AU 2000244907A1 AU 2000244907 A AU2000244907 A AU 2000244907A AU 4490700 A AU4490700 A AU 4490700A AU 2000244907 A1 AU2000244907 A1 AU 2000244907A1
Authority
AU
Australia
Prior art keywords
communication systems
digital communication
offset detection
modulated digital
quadrature modulated
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.)
Abandoned
Application number
AU2000244907A
Other languages
English (en)
Inventor
Leonid Kazakevich
Fatih Ozluturk
Alexander Reznik
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.)
InterDigital Technology Corp
Original Assignee
InterDigital Technology Corp
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 InterDigital Technology Corp filed Critical InterDigital Technology Corp
Publication of AU2000244907A1 publication Critical patent/AU2000244907A1/en
Abandoned 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
    • H04L27/3818—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers
    • H04L27/3836—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers in which the carrier is recovered using the received modulated signal or the received IF signal, e.g. by detecting a pilot or by frequency multiplication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H04L27/2332—Demodulator circuits; Receiver circuits using non-coherent demodulation using a non-coherent carrier
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0065—Frequency error detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0083—Signalling arrangements
    • H04L2027/0085—Signalling arrangements with no special signals for synchronisation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
AU2000244907A 2000-04-25 2000-04-25 Blind carrier offset detection for quadrature modulated digital communication systems Abandoned AU2000244907A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2000/011125 WO2001082546A1 (en) 2000-04-25 2000-04-25 Blind carrier offset detection for quadrature modulated digital communication systems

Publications (1)

Publication Number Publication Date
AU2000244907A1 true AU2000244907A1 (en) 2001-11-07

Family

ID=21741316

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2000244907A Abandoned AU2000244907A1 (en) 2000-04-25 2000-04-25 Blind carrier offset detection for quadrature modulated digital communication systems

Country Status (9)

Country Link
US (2) US7254189B1 (de)
EP (1) EP1279265A1 (de)
JP (1) JP2003535494A (de)
CN (1) CN1197316C (de)
AU (1) AU2000244907A1 (de)
CA (1) CA2407722A1 (de)
HK (1) HK1058593A1 (de)
NO (1) NO20025112L (de)
WO (1) WO2001082546A1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6660842B1 (en) 1994-04-28 2003-12-09 Tripep Ab Ligand/receptor specificity exchangers that redirect antibodies to receptors on a pathogen
US6933366B2 (en) 1996-12-27 2005-08-23 Tripep Ab Specificity exchangers that redirect antibodies to bacterial adhesion receptors
GB2399470B (en) * 2000-05-12 2004-12-29 Global Silicon Ltd Radio receiver
KR100457925B1 (ko) * 2002-11-15 2004-11-18 한국전자통신연구원 로그 변환과 선형 근사를 이용하여 주파수 오프셋을계산하는 방법
US7335359B2 (en) 2003-02-06 2008-02-26 Tripep Ab Glycosylated specificity exchangers
AU2004209457A1 (en) 2003-02-06 2004-08-19 Tripep Ab Antigen/antibody or ligand/receptor glycosylated specificity exchangers
WO2005027353A2 (en) * 2003-09-12 2005-03-24 Ems Technologies Canada, Ltd. Hybrid frequency offset estimator
US7903764B2 (en) * 2004-05-10 2011-03-08 Broadcom Corporation Integrated burst FSK receiver
CN101453441B (zh) * 2007-11-29 2012-10-03 Nxp股份有限公司 鲁棒的整数倍载波频率偏移估计器
TWI373944B (en) * 2008-04-09 2012-10-01 Mstar Semiconductor Inc Apparatus for estimating frequency offset and estimating method thereof
CN101789800A (zh) * 2009-01-23 2010-07-28 雷凌科技股份有限公司 用于无线信号接收机的测试方法及其相关测试装置
US8682182B2 (en) * 2011-05-17 2014-03-25 At&T Intellectual Property I, L.P. Blind carrier frequency offset detection for coherent receivers using quadrature amplitude modulation formats
US9014653B2 (en) * 2012-09-16 2015-04-21 Technische Universiteit Delft High-IF superheterodyne receiver incorporating high-Q complex band pass filter
US9019224B2 (en) * 2013-03-15 2015-04-28 Tactual Labs Co. Low-latency touch sensitive device
GB2512935A (en) * 2013-04-12 2014-10-15 Nordic Semiconductor Asa Digital Radio Transmissions
CN104702554B (zh) * 2013-12-09 2017-12-15 瑞昱半导体股份有限公司 载波频率偏移校正方法
TWI635719B (zh) * 2016-08-19 2018-09-11 晨星半導體股份有限公司 載波頻偏估測裝置與載波頻偏估測方法
TWI635738B (zh) * 2016-09-13 2018-09-11 晨星半導體股份有限公司 載波頻偏估測裝置與載波頻偏估測方法
CN111510406B (zh) * 2020-06-03 2024-05-17 上海创远仪器技术股份有限公司 实现宽带iq调制实时预失真校准的电路及方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6728326B1 (en) * 2000-03-20 2004-04-27 Ericsson Inc. Reduced complexity for initial mobile terminal synchronization
US6687309B1 (en) * 2000-09-29 2004-02-03 Agilent Technologies, Inc. System for estimating carrier frequencies of quadrature amplitude modulated signals having high symbol rates

Also Published As

Publication number Publication date
WO2001082546A1 (en) 2001-11-01
EP1279265A1 (de) 2003-01-29
CA2407722A1 (en) 2001-11-01
HK1058593A1 (en) 2004-05-21
CN1197316C (zh) 2005-04-13
US7254189B1 (en) 2007-08-07
US20070268978A1 (en) 2007-11-22
CN1454422A (zh) 2003-11-05
NO20025112L (no) 2002-12-04
NO20025112D0 (no) 2002-10-24
JP2003535494A (ja) 2003-11-25

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