TW282604B - - Google Patents

Info

Publication number
TW282604B
TW282604B TW084110937A TW84110937A TW282604B TW 282604 B TW282604 B TW 282604B TW 084110937 A TW084110937 A TW 084110937A TW 84110937 A TW84110937 A TW 84110937A TW 282604 B TW282604 B TW 282604B
Authority
TW
Taiwan
Application number
TW084110937A
Original Assignee
Westinghouse Electric 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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of TW282604B publication Critical patent/TW282604B/zh

Links

Classifications

    • 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
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/003—Correction of carrier offset at baseband only
    • 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
    • H04L2027/0046—Open loops
    • H04L2027/0048—Frequency multiplication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
TW084110937A 1994-10-13 1995-10-18 TW282604B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/322,847 US5579345A (en) 1994-10-13 1994-10-13 Carrier tracking loop for QPSK demodulator

Publications (1)

Publication Number Publication Date
TW282604B true TW282604B (zh) 1996-08-01

Family

ID=23256697

Family Applications (1)

Application Number Title Priority Date Filing Date
TW084110937A TW282604B (zh) 1994-10-13 1995-10-18

Country Status (4)

Country Link
US (1) US5579345A (zh)
AU (1) AU3679195A (zh)
TW (1) TW282604B (zh)
WO (1) WO1996012367A1 (zh)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5768323A (en) * 1994-10-13 1998-06-16 Westinghouse Electric Corporation Symbol synchronizer using modified early/punctual/late gate technique
US6023489A (en) * 1995-05-24 2000-02-08 Leica Geosystems Inc. Method and apparatus for code synchronization in a global positioning system receiver
JPH08331098A (ja) * 1995-06-05 1996-12-13 Sharp Corp Ｐｄｉ受信機
GB9511551D0 (en) * 1995-06-07 1995-08-02 Discovision Ass Signal processing system
US5828705A (en) * 1996-02-01 1998-10-27 Kroeger; Brian W. Carrier tracking technique and apparatus having automatic flywheel/tracking/reacquisition control and extended signal to noise ratio
US6359944B1 (en) * 1996-04-17 2002-03-19 Thomson Licensing S.A. Tuning system for achieving quick acquisition times for a digital satellite receiver
US5995563A (en) * 1997-02-10 1999-11-30 Lsi Logic Corporation System and method for fast channel switching in a satellite receiver
US6058147A (en) * 1997-03-03 2000-05-02 Telogy Networks, Inc. Intelligent carrier acquisition method for satellite communications
AU723679B2 (en) * 1997-03-04 2000-08-31 Mitsubishi Denki Kabushiki Kaisha Receiver with a frequency offset correcting function
JPH10294675A (ja) * 1997-04-18 1998-11-04 General Res Of Electron Inc 直接変換受信機用周波数弁別器
US6975691B1 (en) * 1997-12-17 2005-12-13 Kabushiki Kaisha Kenwood Receiver
US6493378B1 (en) 1998-01-06 2002-12-10 Topcon Gps Llc Methods and apparatuses for reducing multipath errors in the demodulation of pseudo-random coded signals
FR2781626B1 (fr) 1998-07-23 2003-02-07 St Microelectronics Sa Procede d'estimation d'erreur de frequence d'un demodulateur qpsk
US6567486B1 (en) * 1999-07-26 2003-05-20 Lucent Technologies Inc. Apparatus and method for finding location of a mobile unit
US6735188B1 (en) 1999-08-27 2004-05-11 Tachyon, Inc. Channel encoding and decoding method and apparatus
DE60022464T2 (de) 2000-01-11 2006-06-14 Lucent Technologies Inc Korrektur von einem Frequenzversatz bei Intersymbolinterferenz
US6744835B1 (en) * 2000-06-02 2004-06-01 Conexant Systems, Inc. Methods and apparatus for implementing an interpolation finite impulse response (FIR) filter for use in timing recovery
US6683920B1 (en) * 2000-09-22 2004-01-27 Applied Micro Circuits Corporation Dual-loop system and method for frequency acquisition and tracking
GB2368500A (en) * 2000-10-27 2002-05-01 Nokia Mobile Phones Ltd A hybrid synchroniser
US7145969B1 (en) * 2001-03-21 2006-12-05 Marvell International Ltd. Method and apparatus for complementary code keying
US7187730B1 (en) 2001-03-21 2007-03-06 Marvell International Ltd. Method and apparatus for predicting CCK subsymbols
US6486742B1 (en) * 2001-09-10 2002-11-26 Lockheed Martin Corporation Blind coherent combiner and method using coupled phase-lock loops
US6456648B1 (en) * 2001-10-01 2002-09-24 Interdigital Technology Corporation Code tracking loop with automatic power normalization
US7372892B2 (en) 2002-04-29 2008-05-13 Interdigital Technology Corporation Simple and robust digital code tracking loop for wireless communication systems
EP1753133A1 (en) * 2005-08-12 2007-02-14 STMicroelectronics Belgium N.V. Receiver with improved sample granularity
EP1753193B1 (en) * 2005-08-12 2009-12-09 STMicroelectronics Belgium N.V. Receiver with clock drift compensation
EP1753134B1 (en) * 2005-08-12 2008-05-28 STMicroelectronics Belgium N.V. Enhanced data rate receiver with an ADC clock rate being a fractional multiple of the receiving symbol rate
EP1753194B1 (en) * 2005-08-12 2008-10-22 STMicroelectronics Belgium N.V. Receiver with a two-stage frequency offset compensation for an M-state phase modulated signal
US7706474B2 (en) * 2005-11-14 2010-04-27 Ibiquity Digital Corporation Carrier tracking for AM in-band on-channel radio receivers
US8239176B2 (en) * 2008-02-13 2012-08-07 Feng Ma Simulation methods and systems for carriers having multiplications
US8948272B2 (en) 2012-12-03 2015-02-03 Digital PowerRadio, LLC Joint source-channel decoding with source sequence augmentation
US9191256B2 (en) 2012-12-03 2015-11-17 Digital PowerRadio, LLC Systems and methods for advanced iterative decoding and channel estimation of concatenated coding systems
US8595590B1 (en) 2012-12-03 2013-11-26 Digital PowerRadio, LLC Systems and methods for encoding and decoding of check-irregular non-systematic IRA codes
CN106603218A (zh) * 2016-04-29 2017-04-26 福建先创通信有限公司 一种基于直接判决载波相位同步fpga结构和方法
CN112684480B (zh) * 2020-12-14 2023-07-07 中山大学 一种高动态载波组合环路跟踪方法及系统

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5914939B2 (ja) * 1976-09-30 1984-04-06 日本電気株式会社 搬送波再生装置
GB1553654A (en) * 1978-02-17 1979-09-26 Marconi Co Ltd Marconi co ltd
US4348641A (en) * 1980-01-08 1982-09-07 E-Systems, Inc. Digital baseband carrier recovery circuit
US4466108A (en) * 1981-10-06 1984-08-14 Communications Satellite Corporation TDMA/PSK Carrier synchronization without preamble
US4520493A (en) * 1981-12-07 1985-05-28 Hughes Aircraft Company Adaptive recursive frequency offset tracking system
JPS58114654A (ja) * 1981-12-28 1983-07-08 Fujitsu Ltd 基準搬送波再生回路
JPS60154758A (ja) * 1984-01-25 1985-08-14 Alps Electric Co Ltd Ｐｓｋ復調装置
US4787096A (en) * 1987-03-04 1988-11-22 National Semiconductor Corp. Second-order carrier/symbol sychronizer
US4879728A (en) * 1989-01-31 1989-11-07 American Telephone And Telegraph Company, At&T Bell Laboratories DPSK carrier acquisition and tracking arrangement
JP2508298B2 (ja) * 1989-10-18 1996-06-19 日本電気株式会社 ディジタル信号受信方式及び受信装置
DE69217140T2 (de) * 1991-08-07 1997-07-03 Toshiba Kawasaki Kk QPSK-Demodulator mit automatischer Frequenznachregelung

Also Published As

Publication number Publication date
WO1996012367A1 (en) 1996-04-25
US5579345A (en) 1996-11-26
AU3679195A (en) 1996-05-06

Similar Documents

Publication Publication Date Title
FR15C0089I1 (zh)
TW280985B (zh)
BR9508234A (zh)
DK0677466T3 (zh)
EP0669395A3 (zh)
EP0669187A3 (zh)
FR2724123B1 (zh)
TW287239B (zh)
EP0666470A3 (zh)
EP0667387A3 (zh)
TW271504B (zh)
DE69535748D1 (zh)
TW283200B (zh)
EP0667627A3 (zh)
TW275713B (zh)
FR2723844B1 (zh)
BY1704C1 (zh)
ECSDI940180S (zh)
IN182281B (zh)
IN184547B (zh)
CU22450A3 (zh)
CU22453A3 (zh)
IN189301B (zh)
DK40195A (zh)
IN189403B (zh)