NO985995L - FremgangsmÕte og anordning til bruk ved fase-modulerte signaler - Google Patents

FremgangsmÕte og anordning til bruk ved fase-modulerte signaler

Info

Publication number
NO985995L
NO985995L NO985995A NO985995A NO985995L NO 985995 L NO985995 L NO 985995L NO 985995 A NO985995 A NO 985995A NO 985995 A NO985995 A NO 985995A NO 985995 L NO985995 L NO 985995L
Authority
NO
Norway
Prior art keywords
phase
segments
deviation
sequences
modulated signals
Prior art date
Application number
NO985995A
Other languages
English (en)
Other versions
NO985995D0 (no
Inventor
Dan Weinholt
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of NO985995D0 publication Critical patent/NO985995D0/no
Publication of NO985995L publication Critical patent/NO985995L/no

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • 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
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • 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
    • H04L2027/0053—Closed loops

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)
  • Radar Systems Or Details Thereof (AREA)

Abstract

Fremgangsmåte og anordning for detektering av deviasjon, for bruk under overføring av et faseskiftmodulert informasjonsbærende signal mellom en sender og en mottaker. Deviasjonsdetektoren gjør bruk av tilstedeværelsen av faselineære segmenter, dvs. deler av sekvenser av faseendringer med fortløpende samme faseendring. Deviasjonsdetektoren ekstraherer segmenter som består av tre eller flere fortløpende faseendringer med fastslått samme faseendring. Identifisering av de utfiltrerte segmentene blir utført for å kunne slå fast hvilke nominelt faselineære sekvenser segmentene tilhører. Deretter er det mulig å beregne deviasjonen og eventuelt et korreksjonssignal.
NO985995A 1996-06-28 1998-12-18 FremgangsmÕte og anordning til bruk ved fase-modulerte signaler NO985995L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9602563A SE506847C2 (sv) 1996-06-28 1996-06-28 Förfarande och anordning vid fasmodulerade signaler
PCT/SE1997/001158 WO1998000906A1 (en) 1996-06-28 1997-06-27 Method and device for use with phase modulated signals

Publications (2)

Publication Number Publication Date
NO985995D0 NO985995D0 (no) 1998-12-18
NO985995L true NO985995L (no) 1999-02-25

Family

ID=20403201

Family Applications (1)

Application Number Title Priority Date Filing Date
NO985995A NO985995L (no) 1996-06-28 1998-12-18 FremgangsmÕte og anordning til bruk ved fase-modulerte signaler

Country Status (11)

Country Link
US (1) US6091789A (no)
EP (1) EP0940005B1 (no)
JP (1) JP3850887B2 (no)
CN (1) CN1111943C (no)
AU (1) AU3471197A (no)
BR (1) BR9710057A (no)
CA (1) CA2258349A1 (no)
DE (1) DE69711214T2 (no)
NO (1) NO985995L (no)
SE (1) SE506847C2 (no)
WO (1) WO1998000906A1 (no)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3185867B2 (ja) * 1997-11-28 2001-07-11 日本電気株式会社 誤差検出方法および装置、信号復調方法および装置
US6301310B1 (en) * 1998-12-14 2001-10-09 Hughes Electronics Corporation Efficient implementation for systems using CEOQPSK
US6570941B1 (en) * 1999-01-05 2003-05-27 Matsushita Electric Industrial Co., Ltd. Receiver and phase extraction circuit

Family Cites Families (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1125016A (en) * 1913-02-05 1915-01-12 John B Acton Multiple spring.
US3906380A (en) * 1974-04-16 1975-09-16 Rixon Phase demodulator with phase shifted reference carrier
US4042884A (en) * 1975-02-20 1977-08-16 Rixon, Inc. Phase demodulator with offset frequency reference oscillator
US4071829A (en) * 1976-11-09 1978-01-31 Harris Corporation Coherent phase detector using a frequency discriminator
US4234957A (en) * 1978-12-04 1980-11-18 Gte Automatic Electric Laboratories Incorporated Method and apparatus for generating timing phase error signals in PSK demodulators
US4267591A (en) * 1979-04-17 1981-05-12 Cincinnati Electronics Corporation QPSK Suppressed carrier with rotating reference phase
US4311964A (en) * 1979-09-21 1982-01-19 Westinghouse Electric Corp. Coherent phase shift keyed demodulator for power line communication systems
US4379284A (en) * 1979-09-21 1983-04-05 Westinghouse Electric Corp. Coherent phase shift keyed demodulator for power line communication systems
US4594556A (en) * 1983-07-22 1986-06-10 Sharp Kabushiki Kaisha Demodulation circuit from FM signals and demodulation system therefor
US4555667A (en) * 1983-09-26 1985-11-26 Rixon, Inc. Synchronous digital QPSK demodulator with carrier error correction
US4613976A (en) * 1984-05-02 1986-09-23 British Columbia Telephone Company Constant envelope offset QPSK modulator
US4581749A (en) * 1984-07-02 1986-04-08 Motorola, Inc. Data frequency modulator with deviation control
US4712221A (en) * 1986-08-29 1987-12-08 International Business Machines Corporation Carrier recovery of modulated signals
US4932029A (en) * 1987-07-24 1990-06-05 Ant Nachrichtentechnik Gmbh Method and apparatus for correcting errors in convolutional code signals
GB2207582B (en) * 1987-07-30 1991-04-24 Stc Plc Phase error correction and carrier recovery
US4942592A (en) * 1988-06-06 1990-07-17 Motorola, Inc. Synchronous receiver for minimum shift keying transmission
US4896336A (en) * 1988-08-29 1990-01-23 Rockwell International Corporation Differential phase-shift keying demodulator
US4866395A (en) * 1988-11-14 1989-09-12 Gte Government Systems Corporation Universal carrier recovery and data detection for digital communication systems
FR2639497B1 (fr) * 1988-11-21 1991-02-15 France Etat Demodulateur pour transmission numerique comportant un dispositif de correction automatique des defauts
US5027352A (en) * 1989-01-05 1991-06-25 Motorola, Inc. Receiver frequency offset bias circuit for TDM radios
SE462942B (sv) * 1989-01-26 1990-09-17 Ericsson Telefon Ab L M Saett och anordning foer snabb frekvensstyrning av en koherent radiomottagare
CA2021361C (en) * 1989-07-17 1994-03-29 Hiroyasu Muto Quadrature demodulation of a data sequence following a particular signal sequence with a local reference carrier signal having a frequency different from a received carrier signal
JP2542928B2 (ja) * 1989-07-20 1996-10-09 三洋電機株式会社 Ｆｍ変調器
US5053717A (en) * 1989-10-05 1991-10-01 Motorola, Inc. FSK demodulator
JPH03274844A (ja) * 1990-03-24 1991-12-05 Japan Radio Co Ltd Ｐｓｋ変調信号の遅延検波回路
JP3101955B2 (ja) * 1991-06-06 2000-10-23 松下電器産業株式会社 ディジタル変調信号の復調装置
JP2771354B2 (ja) * 1991-08-26 1998-07-02 日本電気株式会社 復調器
JPH05327803A (ja) * 1992-05-15 1993-12-10 Toshiba Corp ４相ｐｓｋ復調装置
JPH05347643A (ja) * 1992-06-12 1993-12-27 Toshiba Corp 位相比較器
JP2762852B2 (ja) * 1992-07-30 1998-06-04 日本電気株式会社 周波数安定化回路
JP3360691B2 (ja) * 1992-10-13 2002-12-24 ソニー株式会社 検波回路
JPH06261086A (ja) * 1993-03-08 1994-09-16 Nippondenso Co Ltd ディジタル携帯電話における復調装置
US5475705A (en) * 1993-04-29 1995-12-12 Ericsson Ge Mobile Communications Inc. Demodulator for Manchester-coded FM signals
EP0701745B1 (en) * 1993-06-04 1999-09-15 Rca Thomson Licensing Corporation Direct conversion tuner
JP2643792B2 (ja) * 1993-09-14 1997-08-20 日本電気株式会社 復調装置
JPH0787145A (ja) * 1993-09-16 1995-03-31 Toshiba Corp Ａｆｃ回路
US5568096A (en) * 1995-04-19 1996-10-22 Telefonaktiebolaget Lm Ericsson Apparatus and method for using negative FM feedback in high quality oscillator devices
SE504341C2 (sv) * 1995-05-22 1997-01-20 Ericsson Telefon Ab L M Förfarande och anordning vid fasmodulerade signaler

Also Published As

Publication number Publication date
WO1998000906A1 (en) 1998-01-08
AU3471197A (en) 1998-01-21
JP2000514261A (ja) 2000-10-24
DE69711214D1 (de) 2002-04-25
DE69711214T2 (de) 2002-11-07
CN1228884A (zh) 1999-09-15
US6091789A (en) 2000-07-18
EP0940005A1 (en) 1999-09-08
CN1111943C (zh) 2003-06-18
SE506847C2 (sv) 1998-02-16
SE9602563L (sv) 1997-12-29
NO985995D0 (no) 1998-12-18
SE9602563D0 (sv) 1996-06-28
JP3850887B2 (ja) 2006-11-29
EP0940005B1 (en) 2002-03-20
BR9710057A (pt) 1999-08-10
CA2258349A1 (en) 1998-01-08

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