DK3358796T3 - Adaptiv udligning - Google Patents

Adaptiv udligning Download PDF

Info

Publication number
DK3358796T3
DK3358796T3 DK18151260.9T DK18151260T DK3358796T3 DK 3358796 T3 DK3358796 T3 DK 3358796T3 DK 18151260 T DK18151260 T DK 18151260T DK 3358796 T3 DK3358796 T3 DK 3358796T3
Authority
DK
Denmark
Prior art keywords
adaptive equalization
equalization
adaptive
Prior art date
Application number
DK18151260.9T
Other languages
English (en)
Inventor
Sumanth Eadala
Jonathan Thursby
Original Assignee
Ev Offshore 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 Ev Offshore Ltd filed Critical Ev Offshore Ltd
Application granted granted Critical
Publication of DK3358796T3 publication Critical patent/DK3358796T3/da

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • 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
    • 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
    • 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
    • H04L25/0305—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 blind adaptation
    • 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
    • H04L25/03878—Line equalisers; line build-out devices
    • H04L25/03885—Line equalisers; line build-out devices adaptive
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H04L27/144—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements
    • H04L27/148—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using filters, including PLL-type filters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H21/00—Adaptive networks
    • H03H21/0012—Digital adaptive filters
    • H03H2021/0085—Applications
    • H03H2021/0092—Equalization, i.e. inverse modeling
    • 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
    • H04L2025/03636—Algorithms using least mean square [LMS]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Remote Sensing (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
DK18151260.9T 2017-02-02 2018-01-11 Adaptiv udligning DK3358796T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1701713.8A GB2559363A (en) 2017-02-02 2017-02-02 Adaptive equalisation

Publications (1)

Publication Number Publication Date
DK3358796T3 true DK3358796T3 (da) 2020-01-13

Family

ID=58462380

Family Applications (1)

Application Number Title Priority Date Filing Date
DK18151260.9T DK3358796T3 (da) 2017-02-02 2018-01-11 Adaptiv udligning

Country Status (6)

Country Link
US (1) US10508537B2 (da)
EP (1) EP3358796B1 (da)
CA (1) CA2992632A1 (da)
DK (1) DK3358796T3 (da)
GB (1) GB2559363A (da)
HU (1) HUE047468T2 (da)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11371341B2 (en) * 2019-07-15 2022-06-28 Halliburton Energy Services, Inc. Use of tool data to equalize a channel response

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5471504A (en) * 1994-04-14 1995-11-28 Computer & Communication Research Laboratories Bilinear decision feedback equalizer
DE10101950C1 (de) * 2001-01-17 2003-01-23 Infineon Technologies Ag Entscheidungsrückgekoppelte Entzerrervorrichtung
US7218672B2 (en) * 2001-10-16 2007-05-15 Koninklijke Philips Electronics N.V. Apparatus and method for constraining the value of feedback filter tap coefficients in a decision feedback equalizer
US7016405B2 (en) * 2002-02-14 2006-03-21 Mitsubishi Electric Research Laboratories, Inc. Signal circulation for adaptive signal equalization in digital communication systems
JP4359162B2 (ja) * 2004-02-24 2009-11-04 三洋電機株式会社 受信装置
EP1924004B1 (en) * 2005-09-06 2015-04-08 Fujitsu Ltd. Equalizer device and method
US7965466B1 (en) * 2007-05-18 2011-06-21 Marvell International Ltd. Equalization and detection
US9450788B1 (en) * 2015-05-07 2016-09-20 Macom Technology Solutions Holdings, Inc. Equalizer for high speed serial data links and method of initialization

Also Published As

Publication number Publication date
HUE047468T2 (hu) 2020-04-28
GB2559363A (en) 2018-08-08
CA2992632A1 (en) 2018-08-02
EP3358796A1 (en) 2018-08-08
EP3358796B1 (en) 2019-09-25
US20180245457A1 (en) 2018-08-30
US10508537B2 (en) 2019-12-17
GB201701713D0 (en) 2017-03-22

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