TW200518452A - Equalizing method and signal receiver using such equalizing method - Google Patents
Equalizing method and signal receiver using such equalizing methodInfo
- Publication number
- TW200518452A TW200518452A TW093130829A TW93130829A TW200518452A TW 200518452 A TW200518452 A TW 200518452A TW 093130829 A TW093130829 A TW 093130829A TW 93130829 A TW93130829 A TW 93130829A TW 200518452 A TW200518452 A TW 200518452A
- Authority
- TW
- Taiwan
- Prior art keywords
- unit
- equalizer
- output signal
- equalizing method
- decision
- Prior art date
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
- H04L2025/03433—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
- H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
- H04L2025/03535—Variable structures
- H04L2025/03547—Switching between time domain structures
- H04L2025/03566—Switching between time domain structures between different tapped delay line structures
- H04L2025/03585—Modifying the length
-
- 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
- H04L2025/03598—Algorithms
- H04L2025/03611—Iterative algorithms
- H04L2025/03617—Time recursive algorithms
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003391296A JP2005159467A (ja) | 2003-11-20 | 2003-11-20 | 等化方法およびそれを利用した受信装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
TW200518452A true TW200518452A (en) | 2005-06-01 |
Family
ID=34587479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW093130829A TW200518452A (en) | 2003-11-20 | 2004-10-12 | Equalizing method and signal receiver using such equalizing method |
Country Status (4)
Country | Link |
---|---|
US (1) | US20050111539A1 (zh) |
JP (1) | JP2005159467A (zh) |
CN (1) | CN1619960A (zh) |
TW (1) | TW200518452A (zh) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2892586A1 (fr) * | 2005-10-24 | 2007-04-27 | France Telecom | Procede et dispositif de reception hybride comportant un egaliseur canal et un annuleur d'interference |
US7978752B2 (en) * | 2006-03-15 | 2011-07-12 | Interdigital Technology Corporation | Method and apparatus for switching operating modes of a receiver |
JP4822946B2 (ja) * | 2006-06-16 | 2011-11-24 | 日本無線株式会社 | 適応等化器 |
US8098781B1 (en) * | 2007-10-12 | 2012-01-17 | Harris Corporation | Communications system using adaptive filter with normalization circuit |
US8094763B1 (en) * | 2007-10-12 | 2012-01-10 | Harris Corporation | Communications system using adaptive filter with adaptive update gain |
US7864835B2 (en) * | 2007-10-12 | 2011-01-04 | Harris Corporation | Communications system using adaptive filter and variable delay before adaptive filter taps |
US7860200B2 (en) * | 2007-10-12 | 2010-12-28 | Harris Corporation | Communications system using adaptive filter that is selected based on output power |
US8204164B1 (en) * | 2007-10-12 | 2012-06-19 | Harris Corporation | Communications system using adaptive filter and selected adaptive filter taps |
US8787510B2 (en) * | 2008-12-31 | 2014-07-22 | Motorola Mobility Llc | Channel selection exploiting multiple observations of the channel delay spread |
US8194728B2 (en) * | 2009-03-09 | 2012-06-05 | Himax Media Solutions, Inc. | Tap/group-revivable decision feedback equalizing method and equalizer using the same |
EP2343837A1 (en) * | 2010-01-08 | 2011-07-13 | Alcatel Lucent | Channel state information feedback using a hierarchical codebook for vector quantisation |
JP4763090B1 (ja) * | 2010-12-02 | 2011-08-31 | パナソニック株式会社 | 等化装置及び等化方法 |
EP2506457B1 (en) * | 2011-03-31 | 2016-03-30 | Alcatel Lucent | Processing of digital detection signals generated by coherent optical detection |
US8724690B1 (en) | 2012-10-23 | 2014-05-13 | L-3 Communications Corp. | Multipath delay calculator for a decision feedback equalizer |
WO2014107835A1 (en) * | 2013-01-08 | 2014-07-17 | Qualcomm Incorporated | Apparatus and methods for estimating optical ethernet data sequences |
US9698914B2 (en) * | 2013-03-30 | 2017-07-04 | Zte Corporation | Recovering data from quadrature phase shift keying modulated optical signals |
US9680668B2 (en) * | 2014-12-16 | 2017-06-13 | Intel Corporation | Delay resilient decision feedback equalizer |
US9692618B2 (en) | 2015-09-30 | 2017-06-27 | Huawei Technologies Co., Ltd. | Pipeline multiplexer loop architecture for decision feedback equalizer circuits |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0615347B1 (en) * | 1992-09-18 | 2002-05-22 | Oki Electric Industry Company, Limited | Adaptative equalizing receiver and maximum likelihood sequence estimation receiver |
JP3325731B2 (ja) * | 1994-11-15 | 2002-09-17 | 株式会社日立国際電気 | 移動通信における適応等化方式 |
DE19803235A1 (de) * | 1998-01-28 | 1999-07-29 | Siemens Ag | Vorrichtung und Verfahren zur Veränderung des Rauschverhaltens in einem Empfänger eines Datenübertragungssystems |
JPH11261457A (ja) * | 1998-03-10 | 1999-09-24 | Hitachi Ltd | 波形等化処理方法 |
JPH11264561A (ja) * | 1998-03-18 | 1999-09-28 | Mitsubishi Paper Mills Ltd | 蓄熱性建材及び蓄熱方法 |
US6327302B1 (en) * | 1998-08-28 | 2001-12-04 | Ericsson Inc. | Fast adaptive equalizer for wireless communication systems |
JP3560138B2 (ja) * | 1999-12-06 | 2004-09-02 | 松下電器産業株式会社 | 波形等化器とこれを用いた移動局無線装置、基地局無線装置及び移動通信システム |
US7027503B2 (en) * | 2002-06-04 | 2006-04-11 | Qualcomm Incorporated | Receiver with a decision feedback equalizer and a linear equalizer |
EP1392001A1 (en) * | 2002-08-22 | 2004-02-25 | Vrije Universiteit Brussel | Adaptive equalizer |
US7085317B2 (en) * | 2003-02-18 | 2006-08-01 | Qualcomm, Inc. | Communication receiver with an adaptive equalizer length |
-
2003
- 2003-11-20 JP JP2003391296A patent/JP2005159467A/ja active Pending
-
2004
- 2004-10-12 TW TW093130829A patent/TW200518452A/zh unknown
- 2004-11-12 US US10/985,951 patent/US20050111539A1/en not_active Abandoned
- 2004-11-16 CN CNA2004100925865A patent/CN1619960A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
US20050111539A1 (en) | 2005-05-26 |
CN1619960A (zh) | 2005-05-25 |
JP2005159467A (ja) | 2005-06-16 |
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