CA2076997C - Appareil et methode de filtrage adaptatif de signaux a variation temporelle utilisant plusieurs algorithmes de filtrage - Google Patents

Appareil et methode de filtrage adaptatif de signaux a variation temporelle utilisant plusieurs algorithmes de filtrage

Info

Publication number
CA2076997C
CA2076997C CA 2076997 CA2076997A CA2076997C CA 2076997 C CA2076997 C CA 2076997C CA 2076997 CA2076997 CA 2076997 CA 2076997 A CA2076997 A CA 2076997A CA 2076997 C CA2076997 C CA 2076997C
Authority
CA
Canada
Prior art keywords
symbols
signal
filtering algorithm
time
rls
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
CA 2076997
Other languages
English (en)
Inventor
James C. Baker
Henry L. Kazecki
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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of CA2076997C publication Critical patent/CA2076997C/fr
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
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03057—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure
    • 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
    • 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
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03484—Tapped delay lines time-recursive
    • H04L2025/0349—Tapped delay lines time-recursive as a feedback filter
    • 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
    • H04L2025/03592—Adaptation methods
    • H04L2025/03726—Switching between algorithms

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Filters That Use Time-Delay Elements (AREA)
CA 2076997 1991-09-30 1992-08-27 Appareil et methode de filtrage adaptatif de signaux a variation temporelle utilisant plusieurs algorithmes de filtrage Expired - Fee Related CA2076997C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US76998391A 1991-09-30 1991-09-30
US769,983 1991-09-30

Publications (1)

Publication Number Publication Date
CA2076997C true CA2076997C (fr) 1996-12-10

Family

ID=25087110

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2076997 Expired - Fee Related CA2076997C (fr) 1991-09-30 1992-08-27 Appareil et methode de filtrage adaptatif de signaux a variation temporelle utilisant plusieurs algorithmes de filtrage

Country Status (3)

Country Link
CA (1) CA2076997C (fr)
GB (1) GB2260068B (fr)
MX (1) MX9205516A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2738967B1 (fr) * 1995-09-15 1997-12-05 France Telecom Dispositif d'egalisation adaptatif pour systemes de communications numeriques
US5742642A (en) * 1996-10-29 1998-04-21 Telefonaktiebolaget Lm Ericsson Signal processing method and apparatus for reducing equalizer error
GB9908813D0 (en) * 1999-04-16 1999-06-09 Sony Uk Ltd Digital filtering
US6581080B1 (en) 1999-04-16 2003-06-17 Sony United Kingdom Limited Digital filters
JP3296330B2 (ja) * 1999-05-20 2002-06-24 日本電気株式会社 適応フィルタ、適応フィルタの制御方法及びプログラムを記憶した記憶媒体
GB2357938A (en) 1999-12-24 2001-07-04 Nokia Networks Oy Selecting one of a plurality of equalisation algorithms
DE10013790A1 (de) * 2000-03-20 2001-11-22 Sel Alcatel Ag Elektrische Schaltung zur Verarbeitung eines verzerrten Eingangssignals, insbesondere zum Empfangen von digitalen optischen Signalen
WO2002003635A2 (fr) * 2000-07-05 2002-01-10 Nokia Networks Oy Egaliseur et procede associe, destine a une station de reception
US6853681B1 (en) 2000-11-28 2005-02-08 Telefonaktiebolaget L M Ericsson (Publ) Using different channel models for different training sequences
FR2871236B1 (fr) * 2004-06-02 2006-09-01 Gervais Danone Sa Procede de controle d'un processus microbiologique a partir des derivees temporelles successives des variables d'etat
US9100257B2 (en) * 2012-01-25 2015-08-04 Marvell World Trade Ltd. Systems and methods for composite adaptive filtering
CN105866068B (zh) * 2016-03-28 2020-04-24 北京航空航天大学 一种基于递推最小二乘法的激光吸收光谱谐波信号峰值点提取方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554996B1 (fr) * 1983-11-14 1986-02-28 Labo Electronique Physique Procede et dispositif pour la determination de la position optimale du coefficient de reference d'un egaliseur adaptatif
GB8511835D0 (en) * 1985-05-10 1985-06-19 British Telecomm Adaptive digital filter
EP0345675B1 (fr) * 1988-06-09 1995-01-04 National Semiconductor Corporation Algorithme hybride stochastique du gradient pour la convergence de filters adaptatifs
FI83010C (fi) * 1989-08-24 1991-05-10 Nokia Data Systems Foerfarande foer finavstaemning av en utjaemnare foer anvaendning i ett dataoeverfoeringssystems mottagare.
EP0426026B1 (fr) * 1989-10-31 1996-08-28 Mitsubishi Denki Kabushiki Kaisha Egaliseur
US5230007A (en) * 1991-06-28 1993-07-20 Motorola, Inc. Method for optimizing an adaptive filter update coefficient
CA2073944C (fr) * 1991-07-26 2000-09-19 Woo H. Paik Extraction de la phase de porteuse pour un egaliseur adaptatif

Also Published As

Publication number Publication date
GB2260068B (en) 1995-11-15
GB2260068A (en) 1993-03-31
MX9205516A (es) 1993-03-01
GB9220184D0 (en) 1992-11-04

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