SE8903526L - Foerfarande att adaptera en viterbialgoritm till en kanal med skiftande oeverfoeringsegenskaper samt en anordning foer genomfoerandet av foerfarandet - Google Patents

Foerfarande att adaptera en viterbialgoritm till en kanal med skiftande oeverfoeringsegenskaper samt en anordning foer genomfoerandet av foerfarandet

Info

Publication number
SE8903526L
SE8903526L SE8903526A SE8903526A SE8903526L SE 8903526 L SE8903526 L SE 8903526L SE 8903526 A SE8903526 A SE 8903526A SE 8903526 A SE8903526 A SE 8903526A SE 8903526 L SE8903526 L SE 8903526L
Authority
SE
Sweden
Prior art keywords
procedure
viterbi
analyser
channel
estimation
Prior art date
Application number
SE8903526A
Other languages
Unknown language ( )
English (en)
Other versions
SE8903526D0 (sv
SE464902B (sv
Inventor
B P O Gudmundson
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
Priority to SE8903526A priority Critical patent/SE464902B/sv
Publication of SE8903526D0 publication Critical patent/SE8903526D0/sv
Priority to DK90850301.4T priority patent/DK0425458T3/da
Priority to PCT/SE1990/000575 priority patent/WO1991007035A1/en
Priority to CA002044261A priority patent/CA2044261C/en
Priority to AT90850301T priority patent/ATE107102T1/de
Priority to KR1019910700644A priority patent/KR970007615B1/ko
Priority to DE69009674T priority patent/DE69009674T2/de
Priority to ES90850301T priority patent/ES2054326T3/es
Priority to JP2514469A priority patent/JPH04502695A/ja
Priority to AU65492/90A priority patent/AU626471B2/en
Priority to EP90850301A priority patent/EP0425458B1/en
Priority to NZ235350A priority patent/NZ235350A/en
Priority to US07/599,896 priority patent/US5164961A/en
Publication of SE8903526L publication Critical patent/SE8903526L/sv
Priority to FI912862A priority patent/FI912862A0/fi
Priority to IE352290A priority patent/IE65267B1/en
Priority to NO912432A priority patent/NO302730B1/no
Publication of SE464902B publication Critical patent/SE464902B/sv
Priority to HK123194A priority patent/HK123194A/xx

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
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0236—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols using estimation of the other symbols
    • 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
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03292—Arrangements for operating in conjunction with other apparatus with channel estimation circuitry
SE8903526A 1989-10-24 1989-10-24 Foerfarande att adaptera en viterbialgoritm till en kanal med skiftande oeverfoeringsegenskaper samt en anordning foer genomfoerande av foerfarandet SE464902B (sv)

Priority Applications (17)

Application Number Priority Date Filing Date Title
SE8903526A SE464902B (sv) 1989-10-24 1989-10-24 Foerfarande att adaptera en viterbialgoritm till en kanal med skiftande oeverfoeringsegenskaper samt en anordning foer genomfoerande av foerfarandet
PCT/SE1990/000575 WO1991007035A1 (en) 1989-10-24 1990-09-10 A method of adapting a viterbi algorithm to a channel having varying transmission properties, and apparatus for carrying out the method
JP2514469A JPH04502695A (ja) 1989-10-24 1990-09-10 変動する伝送特性を有するチャネルにビタビ・アルゴリズムを適用する方法及びその方法を実行する装置
EP90850301A EP0425458B1 (en) 1989-10-24 1990-09-10 A method of adapting a viterbi algorithm to a channel having varying transmission properties, and apparatus for carrying out the method
CA002044261A CA2044261C (en) 1989-10-24 1990-09-10 A method of adapting a viterbi algorithm to a channel having varying transmission properties, and apparatus for carrying out the method
AT90850301T ATE107102T1 (de) 1989-10-24 1990-09-10 Methode zur adaption eines viterbi-algorithmus in einen kanal mit variierenden transmissionseigenschaften und apparat zur realisierung der methode.
KR1019910700644A KR970007615B1 (ko) 1989-10-24 1990-09-10 변동하는 전송특성을 가진 채널 비터비 · 알고리즘을 적용하는 방법 및 그 방법을 실행하는 장치
DE69009674T DE69009674T2 (de) 1989-10-24 1990-09-10 Methode zur Adaption eines Viterbi-Algorithmus in einen Kanal mit variierenden Transmissionseigenschaften und Apparat zur Realisierung der Methode.
ES90850301T ES2054326T3 (es) 1989-10-24 1990-09-10 Un metodo para adaptar un algoritmo de viterbi a un canal que tiene propiedades de transmision variables, y aparato para llevar a cabo el metodo.
DK90850301.4T DK0425458T3 (da) 1989-10-24 1990-09-10 Fremgangsmåde til tilpasning af en viterbialgoritme til en kanal med varierende transmissionsegenskaber og apparatur til udøvelse af fremgangsmåden
AU65492/90A AU626471B2 (en) 1989-10-24 1990-09-10 A method of adapting a viterbi algorithm to a channel having varying transmission properties, and apparatus for carrying out the method
NZ235350A NZ235350A (en) 1989-10-24 1990-09-17 Adaptive viterbi analyser
US07/599,896 US5164961A (en) 1989-10-24 1990-10-19 Method and apparatus for adapting a viterbi algorithm to a channel having varying transmission properties
FI912862A FI912862A0 (fi) 1989-10-24 1991-06-13 Foerfarande att adaptera en viterbialgoritm till en kanal med skiftande oeverfoeringsegenskaper samt en anordning foer genomfoerande av foerfarandet.
IE352290A IE65267B1 (en) 1989-10-24 1991-06-18 A method of adapting a viterbi algorithm to a channel having varying transmission properties and apparatus for carrying out the method
NO912432A NO302730B1 (no) 1989-10-24 1991-06-21 Fremgangsmåte for å adaptere en viterbialgoritme til en kanal med skiftende overföringsegenskaper samt en anordning for gjennomföring av fremgangsmåten
HK123194A HK123194A (en) 1989-10-24 1994-11-10 A method of adapting a viterbi algorithm to a channel having varying transmission properties, and apparatus for carrying out the method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8903526A SE464902B (sv) 1989-10-24 1989-10-24 Foerfarande att adaptera en viterbialgoritm till en kanal med skiftande oeverfoeringsegenskaper samt en anordning foer genomfoerande av foerfarandet

Publications (3)

Publication Number Publication Date
SE8903526D0 SE8903526D0 (sv) 1989-10-24
SE8903526L true SE8903526L (sv) 1991-04-25
SE464902B SE464902B (sv) 1991-06-24

Family

ID=20377260

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8903526A SE464902B (sv) 1989-10-24 1989-10-24 Foerfarande att adaptera en viterbialgoritm till en kanal med skiftande oeverfoeringsegenskaper samt en anordning foer genomfoerande av foerfarandet

Country Status (17)

Country Link
US (1) US5164961A (sv)
EP (1) EP0425458B1 (sv)
JP (1) JPH04502695A (sv)
KR (1) KR970007615B1 (sv)
AT (1) ATE107102T1 (sv)
AU (1) AU626471B2 (sv)
CA (1) CA2044261C (sv)
DE (1) DE69009674T2 (sv)
DK (1) DK0425458T3 (sv)
ES (1) ES2054326T3 (sv)
FI (1) FI912862A0 (sv)
HK (1) HK123194A (sv)
IE (1) IE65267B1 (sv)
NO (1) NO302730B1 (sv)
NZ (1) NZ235350A (sv)
SE (1) SE464902B (sv)
WO (1) WO1991007035A1 (sv)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2795935B2 (ja) * 1989-11-24 1998-09-10 三菱電機株式会社 最尤系列推定装置
GB9008613D0 (en) * 1990-04-17 1990-06-13 Marconi Gec Ltd Reducing interference in r.f.signals
JP2668455B2 (ja) * 1990-12-20 1997-10-27 富士通株式会社 ビタビ復調制御方式
JPH04358364A (ja) * 1991-06-05 1992-12-11 Sony Corp 最尤復号装置
US5303263A (en) * 1991-06-25 1994-04-12 Oki Electric Industry Co., Ltd. Transmission channel characteristic equalizer
SE469052B (sv) * 1991-09-10 1993-05-03 Ericsson Telefon Ab L M Foerfarande att bilda ett kanalestimat foer en tidsvarierande radiokanal
US5862192A (en) * 1991-12-31 1999-01-19 Lucent Technologies Inc. Methods and apparatus for equalization and decoding of digital communications channels using antenna diversity
US5331666A (en) * 1992-06-08 1994-07-19 Ericsson Ge Mobile Communications Inc. Adaptive maximum likelihood demodulator
US5577068A (en) * 1992-06-08 1996-11-19 Ericsson Ge Mobile Communications Inc. Generalized direct update viterbi equalizer
WO1993026106A1 (en) * 1992-06-18 1993-12-23 Oki Electric Industry Co., Ltd. Maximum likelihood sequence estimating device and method therefor
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
US5335250A (en) * 1992-10-22 1994-08-02 Ericsson Ge Mobile Communications Inc. Method and apparatus for bidirectional demodulation of digitally modulated signals
US5745523A (en) * 1992-10-27 1998-04-28 Ericsson Inc. Multi-mode signal processing
US5867537A (en) * 1992-10-27 1999-02-02 Ericsson Inc. Balanced tranversal I,Q filters for quadrature modulators
US5530722A (en) * 1992-10-27 1996-06-25 Ericsson Ge Mobile Communications Inc. Quadrature modulator with integrated distributed RC filters
US5727023A (en) * 1992-10-27 1998-03-10 Ericsson Inc. Apparatus for and method of speech digitizing
US5363412A (en) * 1992-12-28 1994-11-08 Motorola, Inc. Method and apparatus of adaptive maximum likelihood sequence estimation using filtered correlation synchronization
US5424881A (en) 1993-02-01 1995-06-13 Cirrus Logic, Inc. Synchronous read channel
SE513657C2 (sv) * 1993-06-24 2000-10-16 Ericsson Telefon Ab L M Sätt och anordning att vid digital signalöverföring estimera överförda symboler hos en mottagare
US5488635A (en) * 1993-10-29 1996-01-30 General Electric Company Low complexity adaptive equalizer radio receiver employing reduced complexity branch metric calculation
JP2669350B2 (ja) * 1994-07-07 1997-10-27 日本電気株式会社 状態数可変最尤系列推定器
US5481572A (en) * 1994-08-02 1996-01-02 Ericsson Inc. Method of and apparatus for reducing the complexitiy of a diversity combining and sequence estimation receiver
US6081566A (en) * 1994-08-02 2000-06-27 Ericsson, Inc. Method and apparatus for interference rejection with different beams, polarizations, and phase references
US5680419A (en) * 1994-08-02 1997-10-21 Ericsson Inc. Method of and apparatus for interference rejection combining in multi-antenna digital cellular communications systems
US6173014B1 (en) 1994-08-02 2001-01-09 Telefonaktiebolaget Lm Ericsson Method of and apparatus for interference rejection combining and downlink beamforming in a cellular radio communications system
FI105514B (sv) * 1994-09-12 2000-08-31 Nokia Mobile Phones Ltd Mottagningsförfarande och mottagare
FI110731B (sv) * 1994-09-12 2003-03-14 Nokia Corp Förfarande för estimering av en kanal och mottagare
US5557645A (en) * 1994-09-14 1996-09-17 Ericsson-Ge Mobile Communications Inc. Channel-independent equalizer device
SE9403109D0 (sv) * 1994-09-16 1994-09-16 Limt Technology Ab Local insertion of digital material in analogue and digital broadcasting
SE503522C2 (sv) * 1994-10-31 1996-07-01 Ericsson Telefon Ab L M Förfarande och anordning för kanalestimering
US5586128A (en) * 1994-11-17 1996-12-17 Ericsson Ge Mobile Communications Inc. System for decoding digital data using a variable decision depth
CA2147087A1 (en) * 1995-04-13 1996-10-14 Guy Begin Method and apparatus for correcting and decoding a sequence of branches representing encoded data bits into estimated information bits
JP3674111B2 (ja) * 1995-10-25 2005-07-20 三菱電機株式会社 データ伝送装置
US5742621A (en) * 1995-11-02 1998-04-21 Motorola Inc. Method for implementing an add-compare-select butterfly operation in a data processing system and instruction therefor
US5764646A (en) * 1996-04-02 1998-06-09 Ericsson Inc. Packet data transmission with clash subtraction
US5796788A (en) * 1996-04-19 1998-08-18 Ericsson Inc. Method and apparatus for interference decorrelation in time and space
US5881073A (en) * 1996-09-20 1999-03-09 Ericsson Inc. Convolutional decoding with the ending state decided by CRC bits placed inside multiple coding bursts
US6320914B1 (en) 1996-12-18 2001-11-20 Ericsson Inc. Spectrally efficient modulation using overlapped GMSK
US6026130A (en) * 1997-03-04 2000-02-15 Advanced Micro Devices, Inc. System and method for estimating a set of parameters for a transmission channel in a communication system
US5930296A (en) * 1997-04-08 1999-07-27 Glenayre Electronics, Inc. Low-complexity bidirectional equalizer
GB2335123B (en) * 1998-03-07 2003-08-13 Siemens Ag Communications receiver and method of detecting data from received signals
TW390082B (en) * 1998-05-26 2000-05-11 Koninkl Philips Electronics Nv Transmission system with adaptive channel encoder and decoder
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
US6556634B1 (en) 1999-02-10 2003-04-29 Ericsson, Inc. Maximum likelihood rake receiver for use in a code division, multiple access wireless communication system
US6687317B1 (en) * 1999-04-16 2004-02-03 Koninklijke Philips Electronics N.V. Method for correlation directed echo cancellation and channel equalization for the digital transmission link in vestigial side band amplitude modulation
US6470192B1 (en) 1999-08-16 2002-10-22 Telefonaktiebolaget Lm Ericcson (Publ) Method of an apparatus for beam reduction and combining in a radio communications system
US6484285B1 (en) 2000-02-07 2002-11-19 Ericsson, Inc. Tailbiting decoder and method
US7079586B1 (en) * 2000-03-16 2006-07-18 Koninklijke Philips Electronics N.V. Systems and methods for optimal distribution of symbols in a fixed size data packet to improve receiver performance
GB2362073B (en) * 2000-05-03 2003-12-17 Siemens Ag Equaliser and method of state reduction therefor
US6970520B1 (en) 2000-11-13 2005-11-29 Telefonaktiebolaget Lm Ericsson (Publ) Methods and systems for accumulating metrics generated by a sequence estimation algorithm
US7020185B1 (en) 2000-11-28 2006-03-28 Lucent Technologies Inc. Method and apparatus for determining channel conditions in a communication system
GB2376158B (en) * 2001-05-30 2004-07-28 Salah A Al-Chalabi Opto-electronic receiver which compensates for dispersion
EP1303091B1 (en) * 2001-10-09 2006-08-30 Lucent Technologies Inc. Feed forward equalizer controlled by FEC correction rates
US7672412B2 (en) 2006-04-05 2010-03-02 Research In Motion Limited Method and receiver for estimating the channel impulse response using a constant modulus interference removal iteration
DE602006017169D1 (de) * 2006-04-12 2010-11-11 Alcatel Lucent Viterbi-Entzerrer für Signale mit Wechselbitmodulation, optischer Empfänger und dessen Übertragungssystem und Viterbi-Entzerrerverfahren
US11147258B2 (en) 2018-02-12 2021-10-19 Capstan Ag Systems, Inc. Systems and methods for spraying an agricultural fluid on foliage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4609907A (en) * 1984-10-31 1986-09-02 International Business Machines Corporation Dual channel partial response system
US4965254A (en) * 1985-02-14 1990-10-23 Bayer Aktiengesellschaft Agents for combating pests
US4847871A (en) * 1987-01-28 1989-07-11 Matsushita Electric Industrial Co., Ltd. Viterbi detector for digital signal
US5040191A (en) * 1987-02-24 1991-08-13 Codex Corporation Partial response channel signaling systems
US4862464A (en) * 1987-12-30 1989-08-29 Paradyne Corporation Data error detector for digital modems using trellis coding

Also Published As

Publication number Publication date
NO912432L (no) 1991-06-21
DE69009674D1 (de) 1994-07-14
ATE107102T1 (de) 1994-06-15
EP0425458A1 (en) 1991-05-02
IE65267B1 (en) 1995-10-18
DE69009674T2 (de) 1994-09-22
CA2044261C (en) 1999-04-27
FI912862A0 (fi) 1991-06-13
DK0425458T3 (da) 1994-10-03
JPH04502695A (ja) 1992-05-14
EP0425458B1 (en) 1994-06-08
NO912432D0 (no) 1991-06-21
SE8903526D0 (sv) 1989-10-24
ES2054326T3 (es) 1994-08-01
IE903522A1 (en) 1991-04-24
KR970007615B1 (ko) 1997-05-13
KR920702125A (ko) 1992-08-12
WO1991007035A1 (en) 1991-05-16
AU626471B2 (en) 1992-07-30
US5164961A (en) 1992-11-17
HK123194A (en) 1994-11-18
AU6549290A (en) 1991-05-31
NZ235350A (en) 1993-04-28
SE464902B (sv) 1991-06-24
NO302730B1 (no) 1998-04-14
CA2044261A1 (en) 1991-04-25

Similar Documents

Publication Publication Date Title
SE8903526L (sv) Foerfarande att adaptera en viterbialgoritm till en kanal med skiftande oeverfoeringsegenskaper samt en anordning foer genomfoerandet av foerfarandet
SE8904327L (sv) Foerfarande att utfoera kanalestimering foer en faedande kanal vid oeverfoering av symbolsekvenser
US6977534B2 (en) Low voltage differential signaling [LVDS] driver with pre-emphasis
US11652673B2 (en) Decision feedback equalization embedded in slicer
Kudoh et al. A 0.13-μm CMOS 5-Gb/s 10-m 28AWG cable transceiver with no-feedback-loop continuous-time post-equalizer
FI97588C (sv) Förfarande för korrigering av dispersiva, linjära kanaler eller närmelsevis linjära kanaler för digital signaltransmission samt anordning för utförande av förfarandet
FI922388A0 (fi) Maximisannolikhetssekvensestimation baserad pao ekvalisation hos en digital cellular mobilmottagare.
EP2451129A2 (en) Tracking data eye operating margin for steady state adaptation
WO1997039550A3 (en) Equalizer with a sequence estimation method with state reduction for a receiver in a digital transmission system
KR100937286B1 (ko) 양방향 데이터 전송을 위한 통신 회로, 이를 포함하는 자동 테스트 장치 및 양방향 데이터 전송 방법
US20070268984A1 (en) Method and apparatus for determining one or more channel compensation parameters based on data eye monitoring
WO2020036740A1 (en) Multi-stage equalizer for inter-symbol interference cancellation
US20020097805A1 (en) Replica driver mismatch correction using a variable offset comparator
AU1952392A (en) Adaptive equalisation process
US11201768B1 (en) Method and apparatus for multi-level signaling adaptation with fixed reference levels
JP3741955B2 (ja) データ伝送システムにおけるサンプリングレートの制御ための装置及び方法
Cai et al. An Adaptive Floating-tap Decision Feedback Equalizer for a 2.5 to 10 Gbps Receiver
EP3913875A1 (en) Joint synchronization and equalizer initialization for downstream pon
JPH029233A (ja) スイッチトキャパシタ形線路等化器

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 8903526-5

Format of ref document f/p: F

NUG Patent has lapsed