ATE125991T1 - Entzerrer für radioempfänger. - Google Patents

Entzerrer für radioempfänger.

Info

Publication number
ATE125991T1
ATE125991T1 AT89301044T AT89301044T ATE125991T1 AT E125991 T1 ATE125991 T1 AT E125991T1 AT 89301044 T AT89301044 T AT 89301044T AT 89301044 T AT89301044 T AT 89301044T AT E125991 T1 ATE125991 T1 AT E125991T1
Authority
AT
Austria
Prior art keywords
radio receiver
signals
multipath interference
equalizer
probability
Prior art date
Application number
AT89301044T
Other languages
English (en)
Inventor
Stephen Wiliam Wales
Original Assignee
Orbitel Mobile Communications
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 Orbitel Mobile Communications filed Critical Orbitel Mobile Communications
Application granted granted Critical
Publication of ATE125991T1 publication Critical patent/ATE125991T1/de

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
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03184—Details concerning the metric
    • 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
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03401—PSK
    • H04L2025/03407—Continuous phase

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Error Detection And Correction (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Filters And Equalizers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Noise Elimination (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Waveguide Connection Structure (AREA)
  • Burglar Alarm Systems (AREA)
  • Inorganic Insulating Materials (AREA)
  • Road Signs Or Road Markings (AREA)
  • Liquid Crystal Substances (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Networks Using Active Elements (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
AT89301044T 1988-03-05 1989-02-03 Entzerrer für radioempfänger. ATE125991T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8805305A GB2215567B (en) 1988-03-05 1988-03-05 Improvements in or relating to equalisers

Publications (1)

Publication Number Publication Date
ATE125991T1 true ATE125991T1 (de) 1995-08-15

Family

ID=10632928

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89301044T ATE125991T1 (de) 1988-03-05 1989-02-03 Entzerrer für radioempfänger.

Country Status (10)

Country Link
US (1) US5091918A (de)
EP (1) EP0332290B1 (de)
JP (1) JP2637222B2 (de)
AT (1) ATE125991T1 (de)
DE (1) DE68923634T2 (de)
DK (1) DK104089A (de)
ES (1) ES2075039T3 (de)
FI (1) FI100287B (de)
GB (1) GB2215567B (de)
NO (1) NO308686B1 (de)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE465597B (sv) * 1990-02-16 1991-09-30 Ericsson Telefon Ab L M Foerfarande att reducera inverkan av faedning hos en viterbimottagare med minst tvaa antenner
FI84866C (fi) * 1990-03-12 1992-01-27 Nokia Mobile Phones Ltd Foerbaettring av en viterbi-algoritm.
GB2244190A (en) * 1990-05-17 1991-11-20 Orbitel Mobile Communications Receiver systems with equalisers
US5272726A (en) * 1990-07-31 1993-12-21 Nec Corporation Blind type sequence estimator for use in communications system
JP2560896B2 (ja) * 1990-07-31 1996-12-04 日本電気株式会社 最尤受信器
JP2668455B2 (ja) * 1990-12-20 1997-10-27 富士通株式会社 ビタビ復調制御方式
US5251233A (en) * 1990-12-20 1993-10-05 Motorola, Inc. Apparatus and method for equalizing a corrupted signal in a receiver
GB9105101D0 (en) * 1991-03-11 1991-04-24 British Telecomm Error burst detection
JP2551296B2 (ja) * 1991-04-30 1996-11-06 日本電気株式会社 系列推定装置
US5263026A (en) * 1991-06-27 1993-11-16 Hughes Aircraft Company Maximum likelihood sequence estimation based equalization within a mobile digital cellular receiver
US5214675A (en) * 1991-07-02 1993-05-25 Motorola, Inc. System and method for calculating channel gain and noise variance of a communication channel
GB2258123B (en) * 1991-07-20 1994-12-07 Northern Telecom Ltd Signal processor
JP2628950B2 (ja) * 1991-10-07 1997-07-09 株式会社日立製作所 携帯電話システムにおける位置登録方法
SE470371B (sv) * 1992-06-23 1994-01-31 Ericsson Telefon Ab L M Sätt och anordning vid digital signalöverföring att hos en mottagare estimera överförda symboler
FI91579C (fi) * 1992-08-20 1994-07-11 Nokia Mobile Phones Ltd Dekoodaus käyttäen lineaarista metriciä ja häiriön estimointia
FR2696604B1 (fr) * 1992-10-07 1994-11-04 Alcatel Radiotelephone Dispositif d'estimation d'un canal de transmission.
JPH06140951A (ja) * 1992-10-27 1994-05-20 Sony Corp ビタビ等化器
US5583886A (en) * 1992-12-03 1996-12-10 Motorola, Inc. Method for determining a plurality of channel responses and modifying a received signal therewith
US5414734A (en) * 1993-01-06 1995-05-09 Glenayre Electronics, Inc. Compensation for multi-path interference using pilot symbols
US5424881A (en) 1993-02-01 1995-06-13 Cirrus Logic, Inc. Synchronous read channel
US5465412A (en) * 1993-05-19 1995-11-07 Motorola, Inc. Apparatus and method for determining a point in time for detecting a sampled signal in a receiver
US5937015A (en) * 1994-01-11 1999-08-10 Dent; Paul W. Interference mitigation by joint decoding of overlapped signals
GB2286506B (en) * 1994-02-10 1997-12-10 Roke Manor Research Improvements in or relating to co-channel interferance suppression systems
US5724390A (en) * 1994-03-02 1998-03-03 Lucent Technologies Inc. MLSE before derotation and after derotation
SE503648C2 (sv) * 1995-06-12 1996-07-22 Ericsson Telefon Ab L M Anordning och förfarande för mottagning och demodulering av olika signaltyper i en basstation
US6222830B1 (en) * 1995-08-25 2001-04-24 Qualcomm Incorporated Communication system using repeated data selection
US6252863B1 (en) 1996-04-09 2001-06-26 Trimble Navigation Limited Multipath compensation for pseudorange signals
US6002361A (en) * 1996-04-30 1999-12-14 Trimble Navigation Limited Direct integrated approach to multipath signal identification
US5963601A (en) * 1996-05-20 1999-10-05 Trimble Navigation Limited Variable suppression of multipath signal effects
US5903597A (en) * 1996-05-20 1999-05-11 Trimble Navigation Limited Suppression on multipath signal effects
US5828694A (en) * 1996-07-01 1998-10-27 Trimble Navigation Limited Determination of multipath tracking error
US6130894A (en) * 1998-03-09 2000-10-10 Broadcom Homenetworking, Inc. Off-line broadband network interface
US6381271B1 (en) 1998-08-17 2002-04-30 Telefonaktiebolaget Lm Ericsson (Publ) Low complexity decision feedback sequence estimation
US6347125B1 (en) 1999-01-11 2002-02-12 Ericsson Inc. Reduced complexity demodulator for multi-bit symbols
US7099410B1 (en) 1999-01-26 2006-08-29 Ericsson Inc. Reduced complexity MLSE equalizer for M-ary modulated signals
US6735248B2 (en) 1999-03-10 2004-05-11 International Business Machines Corporation Fast converging equalizer for a demodulator
US6421380B1 (en) 1999-03-10 2002-07-16 International Business Machines Corporation Demodulator for digital communication systems
US6456950B1 (en) * 1999-05-19 2002-09-24 International Business Machines Corporation Method and apparatus for estimating and digitizing instantaneous frequency and phase of bandpass signals
US6449320B1 (en) 1999-07-02 2002-09-10 Telefonaktiebolaget Lm Ericsson (Publ) Equalization with DC-offset compensation
US6430391B1 (en) 1999-11-29 2002-08-06 Ericsson Inc. Duplex satellite communication using a single frequency or pair
DE60023280D1 (de) * 2000-06-23 2005-11-24 St Microelectronics Nv Verfahren und Vorrichtung zur Schätzung der Impulsantwort eines Übertragungskanals, insbesondere für ein zellulares Mobiltelefon
GB2400001A (en) * 2003-03-27 2004-09-29 Tandberg Television Asa Constraining a Viterbi decoding trellis using known synchronisation bits
US20050251556A1 (en) * 2004-05-07 2005-11-10 International Business Machines Corporation Continuous feedback-controlled deployment of message transforms in a distributed messaging system
US20050251811A1 (en) * 2004-05-07 2005-11-10 International Business Machines Corporation Distributed messaging system supporting stateful
US7886180B2 (en) * 2004-05-14 2011-02-08 International Business Machines Corporation Recovery in a distributed stateful publish-subscribe system
US7844232B2 (en) * 2005-05-25 2010-11-30 Research In Motion Limited Joint space-time optimum filters (JSTOF) with at least one antenna, at least one channel, and joint filter weight and CIR estimation
US20070297327A1 (en) * 2006-06-27 2007-12-27 International Business Machines Corporation Method for applying stochastic control optimization for messaging systems
JP4381470B1 (ja) * 2009-02-19 2009-12-09 日清食品ホールディングス株式会社 束になった即席麺用生麺

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3246525A1 (de) * 1982-12-16 1984-06-20 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Einrichtung zur entzerrung linearer zeitinvarianter oder langsam zeitvarianter nachrichtenuebertragungskanaele
US4713829A (en) * 1985-06-19 1987-12-15 Codex Corporation Coded modulation system with a simplified decoder capable of reducing the effects of channel distortion
US4837766A (en) * 1986-03-24 1989-06-06 Nec Corporation Frame step-out detecting system
NO163120C (no) * 1987-05-19 1990-04-04 Sintef Fremgangsmaate ved demodulasjon i digitale kommunikasjonssystemer med flerbane-propagasjon.

Also Published As

Publication number Publication date
EP0332290B1 (de) 1995-08-02
JPH0210924A (ja) 1990-01-16
GB2215567A (en) 1989-09-20
NO308686B1 (no) 2000-10-09
JP2637222B2 (ja) 1997-08-06
ES2075039T3 (es) 1995-10-01
US5091918A (en) 1992-02-25
FI100287B (fi) 1997-10-31
DE68923634T2 (de) 1996-01-18
FI891042A0 (fi) 1989-03-03
EP0332290A2 (de) 1989-09-13
DE68923634D1 (de) 1995-09-07
GB2215567B (en) 1992-11-18
NO890908D0 (no) 1989-03-03
DK104089D0 (da) 1989-03-03
EP0332290A3 (de) 1991-11-13
GB8805305D0 (en) 1988-04-07
FI891042L (fi) 1989-09-06
DK104089A (da) 1989-09-06
NO890908L (no) 1989-09-06

Similar Documents

Publication Publication Date Title
ATE125991T1 (de) Entzerrer für radioempfänger.
DE69428514D1 (de) Erweitertes mikrocomputersystem für reduktion der funkfrequenzinterferenz
NO982013D0 (no) FremgangsmÕte for sending og mottaking, samt radiosystem
TW362311B (en) System for improving the quality of a received radio signal
KR910005605A (ko) 이동 무선 수신기 전력을 감소시키는 방법
CA2285431A1 (en) Self-synchronizing equalization techniques and systems
ATE392056T1 (de) Verfahren zur übertragung von informationen in einem mimo-funkkommunikationssystem und funkkommunikationssystem
DE69113251D1 (de) Funksendeempfänger.
SE8501861D0 (sv) Digitalradiokommunikationssystem som anvender sig av kvadraturmodulerade bervagor
NO173908C (no) Fremgangsmaate for overfoering og/-eller for mottakersideutnyttelse av digitale informasjoner i et radiosignal
CA2411457A1 (en) Transmission system, transmission method, transmission apparatus, and electronic recording medium having recorded therein transmission program
EP1443682A3 (de) Funksystem und Vorrichtungen zur Übertragungssynchronisierung
GB1486235A (en) Binary data transmission
EP0665663A4 (de) Verfahren zum selektiven empfangen eines spreizspektrumsignals auf chipbasis.
TW361028B (en) Synchronization method, and associated circuitry, for improved synchronization of a receiver with a transmitter using nonlinear transformation metrics
SE0002585D0 (sv) Method and apparatus in a radio communication system
JPS5789360A (en) Transmitting device
JPS5255418A (en) Low-speed data communication system and its equipment
FR2782882B1 (fr) Procede de test d'un reseau de radiocommunication, dispositif et station de correspondants
JPS5370614A (en) Fm receiver
KR930015405A (ko) Rf와 ir을 겸용한 음성 송수신장치 및 수신방법
JPS5732159A (en) Data transmission system
JPS55161430A (en) Radio communicating system
ATE52397T1 (de) Verfahren zum uebertragen einer digitalen information.
JPS54139304A (en) Dial signal transmission system

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties