DE69733993D1 - Korrektur von Gleichstrom- und Phasenverschiebungen in PSK-Empfängern - Google Patents

Korrektur von Gleichstrom- und Phasenverschiebungen in PSK-Empfängern

Info

Publication number
DE69733993D1
DE69733993D1 DE69733993T DE69733993T DE69733993D1 DE 69733993 D1 DE69733993 D1 DE 69733993D1 DE 69733993 T DE69733993 T DE 69733993T DE 69733993 T DE69733993 T DE 69733993T DE 69733993 D1 DE69733993 D1 DE 69733993D1
Authority
DE
Germany
Prior art keywords
correction
phase shifts
psk receivers
psk
receivers
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
DE69733993T
Other languages
English (en)
Other versions
DE69733993T2 (de
Inventor
Natividade Albert Lobo
Terence Wan Hung Yim
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.)
Nokia Oyj
Original Assignee
Nokia Oyj
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 Nokia Oyj filed Critical Nokia Oyj
Application granted granted Critical
Publication of DE69733993D1 publication Critical patent/DE69733993D1/de
Publication of DE69733993T2 publication Critical patent/DE69733993T2/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
    • H04L27/18—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
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc 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
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/003—Correction of carrier offset at baseband only

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)
DE69733993T 1996-12-31 1997-12-16 Korrektur von Gleichstrom-Phasenverschiebungen in PSK-Empfängern Expired - Lifetime DE69733993T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9627082 1996-12-31
GB9627082A GB2320864B (en) 1996-12-31 1996-12-31 Signal Offset Elimination

Publications (2)

Publication Number Publication Date
DE69733993D1 true DE69733993D1 (de) 2005-09-22
DE69733993T2 DE69733993T2 (de) 2006-07-06

Family

ID=10805121

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69733993T Expired - Lifetime DE69733993T2 (de) 1996-12-31 1997-12-16 Korrektur von Gleichstrom-Phasenverschiebungen in PSK-Empfängern

Country Status (5)

Country Link
US (1) US6259748B1 (de)
EP (1) EP0851640B1 (de)
JP (1) JPH10210093A (de)
DE (1) DE69733993T2 (de)
GB (1) GB2320864B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2782222B1 (fr) * 1998-08-06 2002-05-17 Alsthom Cge Alkatel Estimation du decalage en frequence pour la demodulation d'un paquet de symboles modules en phase
EP1033852A1 (de) * 1999-02-05 2000-09-06 Alcatel Unterdrückung von Gleichspannungsversätzen für Null-ZF-Funkempfänger
US7369813B2 (en) 2003-05-14 2008-05-06 Telefonaktiebolaget L M Ericsson (Publ) Fast calibration of electronic components
US7622987B1 (en) 2007-01-25 2009-11-24 Pmc-Sierra, Inc. Pattern-based DC offset correction
GB2462876A (en) * 2008-08-26 2010-03-03 Cambridge Silicon Radio Ltd Estimating the component of a signal via random sampling
JP6399505B2 (ja) * 2013-12-11 2018-10-03 インターナショナル・ビジネス・マシーンズ・コーポレーションＩｎｔｅｒｎａｔｉｏｎａｌ Ｂｕｓｉｎｅｓｓ Ｍａｃｈｉｎｅｓ Ｃｏｒｐｏｒａｔｉｏｎ 受信装置、通信システム、回路装置、通信方法およびプログラム（高速通信における信号補償）
EP3198954B1 (de) 2014-09-24 2020-03-04 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Verfahren und drahtlose kommunikationsvorrichtung zur kalkulation des frequenzversatzes eines empfangenen signals
CN112883787B (zh) * 2021-01-14 2022-09-06 中国人民解放军陆军勤务学院 一种基于频谱匹配的短样本低频正弦信号参数估计方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4180779A (en) * 1978-09-21 1979-12-25 The United States Of America As Represented By The Secretary Of The Air Force QPSK Demodulator with two-step quadrupler and/or time-multiplexing quadrupling
US5142552A (en) * 1988-02-22 1992-08-25 Silicon Systems, Inc. Method and apparatus for analog D.C. offset cancellation
FI85201C (fi) 1988-08-16 1992-03-10 Nokia Mobira Oy En kombinerad analog/digital frekvensmodulator.
FI83005C (fi) 1988-08-19 1991-05-10 Nokia Mobira Oy Kretsanordning foer generering av i,q-vaogformer.
US5091919A (en) 1989-02-08 1992-02-25 Nokia-Mobira Oy Transmitter arrangement for digitally modulated signals
US5093847A (en) * 1990-12-21 1992-03-03 Silicon Systems, Inc. Adaptive phase lock loop
FI96072C (fi) 1991-08-27 1996-04-25 Nokia Mobile Phones Ltd Modulaattorin vaiheistuksen säätö
FI90165C (fi) 1991-12-13 1993-12-27 Nokia Mobile Phones Ltd I/q-modulator och demodulator
GB9211712D0 (en) * 1992-06-03 1992-07-15 Fujitsu Microelectronics Ltd Gm digital receive processing
US5231364A (en) 1992-06-24 1993-07-27 Nokia Mobile Phones, Ltd. Phaseshift network for an IQ modulator
FR2700228B1 (fr) * 1993-01-06 1995-02-10 Alcatel Telspace Dispositif de calage de phase de chacun des paquets d'un signal numérique à modulation de phase, et récepteur correspondant.
US5371481A (en) 1993-03-24 1994-12-06 Nokia Mobile Phones Ltd. Tuning techniques for I/Q channel signals in microwave digital transmission systems
US5392460A (en) 1993-04-23 1995-02-21 Nokia Mobile Phones Ltd. Dual mode radiotelephone terminal selectively operable for frequency modulated or phase modulated operation
GB2281830B (en) 1993-09-11 1998-08-12 Nokia Mobile Phones Ltd I/q-modulator and i/q-demodulator
GB2282287B (en) 1993-09-25 1998-01-28 Nokia Mobile Phones Ltd A mixer
US5706057A (en) * 1994-03-21 1998-01-06 Rca Thomson Licensing Corporation Phase detector in a carrier recovery network for a vestigial sideband signal
US5659578A (en) * 1994-11-23 1997-08-19 At&T Wireless Services, Inc. High rate Reed-Solomon concatenated trellis coded 16 star QAM system for transmission of data over cellular mobile radio
EP0719002B1 (de) * 1994-12-22 2004-12-08 Alcatel Prozessor für Trägerrückgewinnung
US5574751A (en) * 1995-04-24 1996-11-12 Motorola, Inc. Method for a soft-decision modulation 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

Also Published As

Publication number Publication date
GB2320864A (en) 1998-07-01
JPH10210093A (ja) 1998-08-07
DE69733993T2 (de) 2006-07-06
GB2320864B (en) 2001-07-11
GB9627082D0 (en) 1997-02-19
EP0851640A2 (de) 1998-07-01
US6259748B1 (en) 2001-07-10
EP0851640B1 (de) 2005-08-17
EP0851640A3 (de) 2001-03-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition