DE69007506D1 - Methode zur Steuerung der Frequenz eines kohärenten Radioempfängers und Gerät zur Ausführung der Methode. - Google Patents

Methode zur Steuerung der Frequenz eines kohärenten Radioempfängers und Gerät zur Ausführung der Methode.

Info

Publication number
DE69007506D1
DE69007506D1 DE90850005T DE69007506T DE69007506D1 DE 69007506 D1 DE69007506 D1 DE 69007506D1 DE 90850005 T DE90850005 T DE 90850005T DE 69007506 T DE69007506 T DE 69007506T DE 69007506 D1 DE69007506 D1 DE 69007506D1
Authority
DE
Germany
Prior art keywords
signal
sequence
analysis
viterbi
data
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 - Fee Related
Application number
DE90850005T
Other languages
English (en)
Other versions
DE69007506T2 (de
Inventor
Alex Krister Raith
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of DE69007506D1 publication Critical patent/DE69007506D1/de
Application granted granted Critical
Publication of DE69007506T2 publication Critical patent/DE69007506T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Error Detection And Correction (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Circuits Of Receivers In General (AREA)
  • Radio Relay Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Noise Elimination (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Steroid Compounds (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
DE69007506T 1989-01-26 1990-01-04 Methode zur Steuerung der Frequenz eines kohärenten Radioempfängers und Gerät zur Ausführung der Methode. Expired - Fee Related DE69007506T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8900282A SE462943B (sv) 1989-01-26 1989-01-26 Saett och anordning foer frekvensstyrning av en koherent radiomottagare

Publications (2)

Publication Number Publication Date
DE69007506D1 true DE69007506D1 (de) 1994-04-28
DE69007506T2 DE69007506T2 (de) 1994-06-30

Family

ID=20374869

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69007506T Expired - Fee Related DE69007506T2 (de) 1989-01-26 1990-01-04 Methode zur Steuerung der Frequenz eines kohärenten Radioempfängers und Gerät zur Ausführung der Methode.

Country Status (21)

Country Link
US (1) US5093848A (de)
EP (1) EP0381637B1 (de)
JP (1) JP2634319B2 (de)
KR (1) KR960000608B1 (de)
CN (1) CN1020532C (de)
AT (1) ATE103445T1 (de)
AU (1) AU619944B2 (de)
CA (1) CA2007973C (de)
DE (1) DE69007506T2 (de)
DK (1) DK0381637T3 (de)
ES (1) ES2050419T3 (de)
FI (1) FI904710A0 (de)
HK (1) HK78494A (de)
IE (1) IE64267B1 (de)
MY (1) MY104867A (de)
NO (1) NO301919B1 (de)
NZ (1) NZ232081A (de)
PT (1) PT92981B (de)
SE (1) SE462943B (de)
SG (1) SG84094G (de)
WO (1) WO1990009070A1 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE462942B (sv) * 1989-01-26 1990-09-17 Ericsson Telefon Ab L M Saett och anordning foer snabb frekvensstyrning av en koherent radiomottagare
SE465245B (sv) * 1989-12-22 1991-08-12 Ericsson Telefon Ab L M Foerfarande att utfoera kanalestimering foer en faedande kanal vid oeverfoering av symbolsekvenser
US5263026A (en) * 1991-06-27 1993-11-16 Hughes Aircraft Company Maximum likelihood sequence estimation based equalization within a mobile digital cellular receiver
FI96257C (fi) * 1994-04-13 1996-05-27 Nokia Telecommunications Oy Menetelmä radiotaajuisen signaalin vaihevirheen määrittämiseksi, sekä vastaanotin
US5515345A (en) * 1994-08-23 1996-05-07 Jeane K. Barreira Control unit for automobile audio system
CA2199815C (en) * 1994-09-12 2001-07-24 Catherine W. Jelinek Cable television apparatus employing two-way communication
US5568518A (en) * 1994-09-14 1996-10-22 Ericsson Ge Mobile Communications Inc. Fast automatic gain control
US5586128A (en) * 1994-11-17 1996-12-17 Ericsson Ge Mobile Communications Inc. System for decoding digital data using a variable decision depth
US6118807A (en) * 1994-12-23 2000-09-12 Intermec Ip Corp. Methodology for received signal enhancement utilizing delay diversity processing
US5757855A (en) * 1995-11-29 1998-05-26 David Sarnoff Research Center, Inc. Data detection for partial response channels
US6185259B1 (en) 1996-06-12 2001-02-06 Ericsson Inc. Transmitter/receiver for GMSK and offset-QAM
FI102578B (fi) 1996-11-27 1998-12-31 Nokia Telecommunications Oy Menetelmä taajuuseron mittaamiseksi ja vastaanotin
US6205183B1 (en) 1998-05-29 2001-03-20 Ericsson Inc. Methods of suppressing reference oscillator harmonic interference and related receivers
US6519300B1 (en) 1998-11-12 2003-02-11 Ericsson Inc. System and method for automatic frequency correction in a pilot symbol assisted demodulator
US6278867B1 (en) 1998-11-25 2001-08-21 Ericsson Inc. Methods and systems for frequency generation for wireless devices
US6567475B1 (en) 1998-12-29 2003-05-20 Ericsson Inc. Method and system for the transmission, reception and processing of 4-level and 8-level signaling symbols
US6680969B1 (en) 1999-03-22 2004-01-20 Ericsson, Inc. Methods for estimating doppler spreads including autocorrelation function hypotheses and related systems and receivers
US6625236B1 (en) 2000-02-08 2003-09-23 Ericsson Inc. Methods and systems for decoding symbols by combining matched-filtered samples with hard symbol decisions
US6954489B2 (en) * 2001-01-02 2005-10-11 Telefonaktiebolaget L M Ericsson (Publ) Determining correlations of received sequences to multiple known sequences in a communications system
JP3633497B2 (ja) * 2001-03-22 2005-03-30 三菱電機株式会社 周波数誤差推定を行う受信機および周波数誤差の推定方法
CN102316287B (zh) * 2010-07-09 2014-05-07 北京创毅视讯科技有限公司 一种解调模拟电视信号的方法和装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027250A (en) * 1975-10-21 1977-05-31 Lang Gordon R Apparatus and method for reducing effects of amplitude and phase jitter
FR2375773A1 (fr) * 1976-12-23 1978-07-21 Ibm France Procede et dispositif de detection de phase adaptatifs
US4151491A (en) * 1977-09-28 1979-04-24 Harris Corporation Technique for supplying reference for an adaptive equalizer when multiple phase signals are transmitted
FR2428946A1 (fr) * 1978-06-13 1980-01-11 Ibm France Procede et dispositif pour initialiser un egaliseur adaptatif a partir d'un signal de donnees inconnu dans un systeme de transmission utilisant la modulation d'amplitude en quadrature
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
FR2468258B1 (fr) * 1979-10-19 1987-06-26 Cit Alcatel Circuit de correction des bruits de phase pour un systeme de transmission
US4466108A (en) * 1981-10-06 1984-08-14 Communications Satellite Corporation TDMA/PSK Carrier synchronization without preamble
FR2525055A1 (fr) * 1982-04-09 1983-10-14 Trt Telecom Radio Electr Procede de correction de frequence de la porteuse locale dans le recepteur d'un systeme de transmission de donnees et recepteur utilisant ce procede
US4578080A (en) * 1982-09-06 1986-03-25 Helal Basil H Joint prostheses
FR2546008B1 (fr) * 1983-05-11 1985-07-12 Labo Electronique Physique Circuit d'egalisation adaptative et de demodulation conjointes
IT1188626B (it) * 1986-03-25 1988-01-20 Gte Telecom Spa Metodo e dispositivo di equalizzazione adattiva cieca
SE462942B (sv) * 1989-01-26 1990-09-17 Ericsson Telefon Ab L M Saett och anordning foer snabb frekvensstyrning av en koherent radiomottagare

Also Published As

Publication number Publication date
SE462943B (sv) 1990-09-17
NZ232081A (en) 1992-11-25
CA2007973C (en) 1996-11-05
CN1044561A (zh) 1990-08-08
MY104867A (en) 1994-06-30
PT92981A (pt) 1990-07-31
AU619944B2 (en) 1992-02-06
CA2007973A1 (en) 1990-07-26
AU4964490A (en) 1990-08-24
IE64267B1 (en) 1995-07-26
SE8900282D0 (sv) 1989-01-26
JPH03503831A (ja) 1991-08-22
SG84094G (en) 1994-11-25
PT92981B (pt) 1997-12-31
ATE103445T1 (de) 1994-04-15
FI904710A0 (fi) 1990-09-25
ES2050419T3 (es) 1994-05-16
EP0381637B1 (de) 1994-03-23
HK78494A (en) 1994-08-12
KR910700577A (ko) 1991-03-15
NO903992D0 (no) 1990-09-13
DK0381637T3 (da) 1994-08-01
IE900181L (en) 1990-07-26
DE69007506T2 (de) 1994-06-30
NO903992L (no) 1990-09-13
US5093848A (en) 1992-03-03
JP2634319B2 (ja) 1997-07-23
KR960000608B1 (ko) 1996-01-09
WO1990009070A1 (en) 1990-08-09
CN1020532C (zh) 1993-05-05
NO301919B1 (no) 1997-12-22
EP0381637A1 (de) 1990-08-08

Similar Documents

Publication Publication Date Title
DE69007506D1 (de) Methode zur Steuerung der Frequenz eines kohärenten Radioempfängers und Gerät zur Ausführung der Methode.
ATE103444T1 (de) Verfahren zur schnellen einstellung der frequenz eines kohaerenten radioempfaengers und geraet zur durchfuehrung des verfahrens.
EP0147120A3 (de) Demodulator und Verfahren zur Demodulation mit einer Null-Zwischenfrequenz
DE3886531D1 (de) Anordnung zum filtern eines fm-ukw-empfangssignals.
DE3884473D1 (de) Einrichtung zum herausfiltern eines optischen signals, die eine anordnung zur abstimmung eines optischen wellenlaengenfilters enthaelt.
GB8828912D0 (en) Frequency measurement
ATE97471T1 (de) Verfahren und einrichtung zur elimination des einflusses von periodischen stoergroessen mit bekannter, veraenderlicher frequenz.
NO172719C (no) Fremgangsmaate og apparat for aa karakterisere et modulert baeresignal
JPS5762702A (en) Automatic train control device
ATE73271T1 (de) Verfahren zur regelung eines einseitenbandaufw|rtsmischers sowie anordnung hierzu.
DE3779975D1 (de) Verfahren und vorrichtung zur frequenzumsetzung frequenzmodulierter signale.
NO901354D0 (no) Fremgangsmaate og anordning for taktgjenvinning ved mottagelse av digitale basisbaandsignaler.
JPS53132391A (en) Torsional oscillator measuring method of revolving shaft systems
JPS541776A (en) Position detecting method for a controlled body which is controlled by inductive radio
EP0977056A3 (de) Verfahren und Vorrichtung zum Bestimmen einer Intensität eines eine Messstrecke passiert habenden Radarsignals
EP0387839A3 (de) Detektor für MSK-Signale
Hua A quick and convenient method for calculating the bevel angle of a conical drawpiece
SOPOK Determination of trivalent chromium ions in chromium plating solutions by ultraviolet-visible spectrophotometry(Final Report)
JPS57174954A (en) Monitoring method for fm communication line
WO1994006207A3 (de) Selbstsynchronisierendes signal-averaging-korrekturverfahren
JPS55162636A (en) Rejector for multiplex propagation path distortion
JPS53121144A (en) Carrier protective relaying equipment

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee