BRPI0502474A - Equalizador capaz de ajustar uma dimensão de passo e processo de equalização - Google Patents

Equalizador capaz de ajustar uma dimensão de passo e processo de equalização

Info

Publication number
BRPI0502474A
BRPI0502474A BR0502474-9A BRPI0502474A BRPI0502474A BR PI0502474 A BRPI0502474 A BR PI0502474A BR PI0502474 A BRPI0502474 A BR PI0502474A BR PI0502474 A BRPI0502474 A BR PI0502474A
Authority
BR
Brazil
Prior art keywords
equalizer
determining
error
adjusting
filter
Prior art date
Application number
BR0502474-9A
Other languages
English (en)
Inventor
Jin-Hee Jeong
Original Assignee
Samsung Electronics Co 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of BRPI0502474A publication Critical patent/BRPI0502474A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/01—Equalisers
    • 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
    • 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
    • H04L25/03987—Equalisation for sparse channels
    • 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
    • H04L2025/03382—Single of vestigal sideband
    • 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
    • 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
    • H04L2025/03681—Control of adaptation
    • H04L2025/03687—Control of adaptation of step size
    • 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
    • H04L25/0212—Channel estimation of impulse response
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Dc Digital Transmission (AREA)

Abstract

"EQUALIZADOR CAPAZ DE AJUSTAR UMA DIMENSãO DE PASSO E PROCESSO DE EQUALIZAçãO". A presente invenção refere-se a um equalizador capaz de ajustar uma dimensão de passo e um método de equalização. O equalizador inclui um filtro equalizador para remover ruído de um sinal digital de símbolo, um determiandor de erro para determinar um erro de uma saída do filtro equalizador, uma medição de canal para medir e emitir um impulso de resposta de canal do sinal digital de símbolo introduzido no filtro equalizador, um determinador de estado para determinar e emitir uma confiabilidade da saída de filtro equalizador, e um filtro de coeficiente para receber o erro, para determinar uma derivação possuindo uma dimensão de passo a ser modificada baseado no impulso de resposta do canal e modificar a dimensão de passo de derivação determinada baseado na confiabilidade de atualizar um coeficiente de derivação do filtro equalizador.
BR0502474-9A 2004-06-28 2005-06-28 Equalizador capaz de ajustar uma dimensão de passo e processo de equalização BRPI0502474A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040048940A KR100698630B1 (ko) 2004-06-28 2004-06-28 스텝사이즈 조정기능을 구비한 등화기 및 등화방법

Publications (1)

Publication Number Publication Date
BRPI0502474A true BRPI0502474A (pt) 2006-02-07

Family

ID=36609629

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0502474-9A BRPI0502474A (pt) 2004-06-28 2005-06-28 Equalizador capaz de ajustar uma dimensão de passo e processo de equalização

Country Status (6)

Country Link
US (1) US20050286625A1 (pt)
KR (1) KR100698630B1 (pt)
CN (1) CN1716931A (pt)
BR (1) BRPI0502474A (pt)
CA (1) CA2510914A1 (pt)
NL (1) NL1029339C2 (pt)

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US8615035B2 (en) 2005-03-29 2013-12-24 Qualcomm Incorporated Method and apparatus for block-wise decision-feedback equalization for wireless communication
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US8155218B2 (en) 2007-03-17 2012-04-10 Qualcomm Incorporated Frequency domain equalization for time varying channels
US8711916B2 (en) * 2007-07-27 2014-04-29 Intel Corporation Tap initialization of equalizer based on estimated channel impulse response
US8526486B2 (en) * 2008-11-12 2013-09-03 Intel Corporation Decision feedback equalizer for portable environments
JP4674647B2 (ja) * 2008-11-21 2011-04-20 ソニー株式会社 通信装置、および信号処理方法
JP4735747B2 (ja) * 2008-11-21 2011-07-27 ソニー株式会社 通信装置、および通信フレームフォーマット、並びに信号処理方法
KR101494401B1 (ko) * 2008-12-24 2015-02-17 삼성전자주식회사 이동통신 시스템의 수신 장치 및 방법
US8477833B2 (en) 2009-02-06 2013-07-02 International Business Machines Corporation Circuits and methods for DFE with reduced area and power consumption
US8779847B1 (en) * 2011-07-13 2014-07-15 Marvell International Ltd. Systems and methods for finite impulse response adaptation for gain and phase control
TWI433480B (zh) * 2011-07-19 2014-04-01 Raydium Semiconductor Corp 可調適等化器及其運作方法
CN105099970B (zh) * 2014-04-24 2018-08-14 富士通株式会社 自适应均衡器、自适应均衡方法以及接收机
CN106597481A (zh) * 2016-12-12 2017-04-26 太原理工大学 基于盲均衡器的矢量跟踪多径干扰抑制算法
US10050774B1 (en) * 2017-05-02 2018-08-14 MACOM Technology Solutions Holding, Inc. Mitigating interaction between adaptive equalization and timing recovery
JPWO2019044176A1 (ja) * 2017-08-28 2020-10-01 ソニー株式会社 音声処理装置及び音声処理方法、並びに情報処理装置
US10505768B2 (en) * 2017-12-12 2019-12-10 Huawei Technologies Co., Ltd. Partially disjoint equalization and carrier recovery
US10873407B2 (en) * 2018-11-15 2020-12-22 Marvell Asia Pte, Ltd. Transmitter tuning using receiver gradient
US11381431B2 (en) 2019-05-22 2022-07-05 Nvidia Corporation Receiver and transmitter adaptation using stochastic gradient hill climbing with genetic mutation
US10749720B1 (en) 2019-05-22 2020-08-18 Nvidia Corporation. Receiver adaptation using stochastic gradient hill climbing with genetic mutation
CN113271271B (zh) * 2020-02-17 2022-12-13 华为技术有限公司 自适应均衡器的步长调节方法、装置、信号接收机、系统
CN113541733B (zh) * 2021-09-17 2022-01-28 北京国科天迅科技有限公司 均衡和回波消除装置、方法、计算机设备和存储介质
CN114024806B (zh) * 2021-10-18 2022-10-25 北京邮电大学 融合星载滤波器特征的时域均衡方法、系统及存储介质

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Also Published As

Publication number Publication date
NL1029339A1 (nl) 2005-12-30
US20050286625A1 (en) 2005-12-29
KR100698630B1 (ko) 2007-03-21
CN1716931A (zh) 2006-01-04
KR20060000073A (ko) 2006-01-06
NL1029339C2 (nl) 2006-09-21
CA2510914A1 (en) 2005-12-28

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Legal Events

Date Code Title Description
B03A Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE 5A. ANUIDADE(S).

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2086 DE 28/12/2010.