GB2406758B - Equalisation techniques - Google Patents

Equalisation techniques

Info

Publication number
GB2406758B
GB2406758B GB0322908A GB0322908A GB2406758B GB 2406758 B GB2406758 B GB 2406758B GB 0322908 A GB0322908 A GB 0322908A GB 0322908 A GB0322908 A GB 0322908A GB 2406758 B GB2406758 B GB 2406758B
Authority
GB
United Kingdom
Prior art keywords
equalisation techniques
equalisation
techniques
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
GB0322908A
Other versions
GB0322908D0 (en
GB2406758A (en
Inventor
Carlo Luschi
Charl Andries Cilliers
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.)
Aeroflex Cambridge Ltd
Original Assignee
Ubinetics Ltd
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 Ubinetics Ltd filed Critical Ubinetics Ltd
Priority to GB0322908A priority Critical patent/GB2406758B/en
Publication of GB0322908D0 publication Critical patent/GB0322908D0/en
Publication of GB2406758A publication Critical patent/GB2406758A/en
Application granted granted Critical
Publication of GB2406758B publication Critical patent/GB2406758B/en
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
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/711—Interference-related aspects the interference being multi-path interference
    • H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
    • H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
    • 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
    • H04L2025/03605—Block algorithms
    • 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
    • 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
    • H04L2025/03732—Switching between algorithms according to the convergence state
    • 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
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
    • H04L25/03044—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure using fractionally spaced delay lines or combinations of fractionally integrally spaced taps
    • 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
    • H04L25/03063—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure using fractionally spaced delay lines or combinations of fractionally and integrally spaced taps

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)
GB0322908A 2003-09-30 2003-09-30 Equalisation techniques Expired - Fee Related GB2406758B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0322908A GB2406758B (en) 2003-09-30 2003-09-30 Equalisation techniques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0322908A GB2406758B (en) 2003-09-30 2003-09-30 Equalisation techniques

Publications (3)

Publication Number Publication Date
GB0322908D0 GB0322908D0 (en) 2003-11-05
GB2406758A GB2406758A (en) 2005-04-06
GB2406758B true GB2406758B (en) 2006-04-19

Family

ID=29415245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0322908A Expired - Fee Related GB2406758B (en) 2003-09-30 2003-09-30 Equalisation techniques

Country Status (1)

Country Link
GB (1) GB2406758B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5159609A (en) * 1989-07-18 1992-10-27 Etat Francais (CNET) and Telediffusion de France Data receiving device with delayed equalization and retroactive time-pulse recovery
GB2320865A (en) * 1996-12-30 1998-07-01 Daewoo Electronics Co Ltd A waveform equalizer with analysis of convergence and eye pattern
US6049574A (en) * 1998-04-17 2000-04-11 Trustees Of Tufts College Blind adaptive equalization using cost function that measures dissimilarity between the probability distributions of source and equalized signals
EP1107527A2 (en) * 1999-12-06 2001-06-13 Matsushita Electric Industrial Co., Ltd. Monitoring of tap coefficients in a decision feedback equaliser
US20020186764A1 (en) * 2001-04-06 2002-12-12 Sarnoff Corporation Method and apparatus for equalizing a radio frequency signal
EP1303092A2 (en) * 2001-09-19 2003-04-16 Thomson Licensing S.A. Selective tap initialization in a multicarrier equaliser

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5159609A (en) * 1989-07-18 1992-10-27 Etat Francais (CNET) and Telediffusion de France Data receiving device with delayed equalization and retroactive time-pulse recovery
GB2320865A (en) * 1996-12-30 1998-07-01 Daewoo Electronics Co Ltd A waveform equalizer with analysis of convergence and eye pattern
US6049574A (en) * 1998-04-17 2000-04-11 Trustees Of Tufts College Blind adaptive equalization using cost function that measures dissimilarity between the probability distributions of source and equalized signals
EP1107527A2 (en) * 1999-12-06 2001-06-13 Matsushita Electric Industrial Co., Ltd. Monitoring of tap coefficients in a decision feedback equaliser
US20020186764A1 (en) * 2001-04-06 2002-12-12 Sarnoff Corporation Method and apparatus for equalizing a radio frequency signal
EP1303092A2 (en) * 2001-09-19 2003-04-16 Thomson Licensing S.A. Selective tap initialization in a multicarrier equaliser

Also Published As

Publication number Publication date
GB0322908D0 (en) 2003-11-05
GB2406758A (en) 2005-04-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20080930