HK1058593A1 - 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
HK1058593A1
HK1058593A1 HK04101331A HK04101331A HK1058593A1 HK 1058593 A1 HK1058593 A1 HK 1058593A1 HK 04101331 A HK04101331 A HK 04101331A HK 04101331 A HK04101331 A HK 04101331A HK 1058593 A1 HK1058593 A1 HK 1058593A1
Authority
HK
Hong Kong
Prior art keywords
communication systems
digital communication
offset detection
modulated digital
quadrature modulated
Prior art date
Application number
HK04101331A
Other languages
English (en)
Inventor
Leonid Kazakevich
Fatih Ozluturk
Alexander Reznik
Original Assignee
Interdigital Tech 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 Tech Corp filed Critical Interdigital Tech Corp
Publication of HK1058593A1 publication Critical patent/HK1058593A1/xx

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)
HK04101331A 2000-04-25 2004-02-25 Blind carrier offset detection for quadrature modulated digital communication systems. HK1058593A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2000/011125 WO2001082546A1 (fr) 2000-04-25 2000-04-25 Detection aveugle de decalage de porteuse destinee a des systeme de communication numeriques modules en quadrature

Publications (1)

Publication Number Publication Date
HK1058593A1 true HK1058593A1 (en) 2004-05-21

Family

ID=21741316

Family Applications (1)

Application Number Title Priority Date Filing Date
HK04101331A HK1058593A1 (en) 2000-04-25 2004-02-25 Blind carrier offset detection for quadrature modulated digital communication systems.

Country Status (9)

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

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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
GB2362279B (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
CN1747970A (zh) 2003-02-06 2006-03-15 三肽公司 抗原/抗体或配体/受体糖基化的特异性交换剂
WO2005027353A2 (fr) * 2003-09-12 2005-03-24 Ems Technologies Canada, Ltd. Estimateur hybride de decalage de frequence
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
CA2407722A1 (fr) 2001-11-01
US20070268978A1 (en) 2007-11-22
CN1197316C (zh) 2005-04-13
WO2001082546A1 (fr) 2001-11-01
CN1454422A (zh) 2003-11-05
EP1279265A1 (fr) 2003-01-29
NO20025112D0 (no) 2002-10-24
AU2000244907A1 (en) 2001-11-07
US7254189B1 (en) 2007-08-07
NO20025112L (no) 2002-12-04
JP2003535494A (ja) 2003-11-25

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20150425