KR20070014165A - 잡음 전력 추정치에 기반한 등화기 동기 검출기 - Google Patents

잡음 전력 추정치에 기반한 등화기 동기 검출기 Download PDF

Info

Publication number
KR20070014165A
KR20070014165A KR1020067023283A KR20067023283A KR20070014165A KR 20070014165 A KR20070014165 A KR 20070014165A KR 1020067023283 A KR1020067023283 A KR 1020067023283A KR 20067023283 A KR20067023283 A KR 20067023283A KR 20070014165 A KR20070014165 A KR 20070014165A
Authority
KR
South Korea
Prior art keywords
receiver
constellation space
constellation
equalizer
noise power
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.)
Withdrawn
Application number
KR1020067023283A
Other languages
English (en)
Korean (ko)
Inventor
동-창 슈
애런 릴 뷸렛
막심 비. 벨로체르코프스키
Original Assignee
톰슨 라이센싱
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 톰슨 라이센싱 filed Critical 톰슨 라이센싱
Publication of KR20070014165A publication Critical patent/KR20070014165A/ko
Withdrawn legal-status Critical Current

Links

Images

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control
    • 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
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/0342—QAM
    • 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
    • H04L2025/037—Detection of 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
    • H04L2025/03592—Adaptation methods
    • H04L2025/03726—Switching between algorithms
    • H04L2025/03732—Switching between algorithms according to the convergence state

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
KR1020067023283A 2004-05-12 2005-04-18 잡음 전력 추정치에 기반한 등화기 동기 검출기 Withdrawn KR20070014165A (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US57029204P 2004-05-12 2004-05-12
US57029004P 2004-05-12 2004-05-12
US60/570,292 2004-05-12
US60/570,290 2004-05-12

Publications (1)

Publication Number Publication Date
KR20070014165A true KR20070014165A (ko) 2007-01-31

Family

ID=34966132

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020067023283A Withdrawn KR20070014165A (ko) 2004-05-12 2005-04-18 잡음 전력 추정치에 기반한 등화기 동기 검출기

Country Status (5)

Country Link
US (1) US20080043829A1 (https=)
EP (1) EP1745622A1 (https=)
JP (1) JP2008507860A (https=)
KR (1) KR20070014165A (https=)
WO (1) WO2005114932A1 (https=)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7729456B2 (en) * 2004-11-17 2010-06-01 Via Technologies, Inc. Burst detection apparatus and method for radio frequency receivers
US7702053B2 (en) * 2005-05-05 2010-04-20 Broadcom Corporation State based algorithm to minimize mean squared error
US7613260B2 (en) 2005-11-21 2009-11-03 Provigent Ltd Modem control using cross-polarization interference estimation
US7796708B2 (en) * 2006-03-29 2010-09-14 Provigent Ltd. Adaptive receiver loops with weighted decision-directed error
CN101047688B (zh) * 2006-06-13 2011-04-20 华为技术有限公司 一种估计信噪比的方法及装置
US7643512B2 (en) 2006-06-29 2010-01-05 Provigent Ltd. Cascaded links with adaptive coding and modulation
US7580469B2 (en) * 2006-07-06 2009-08-25 Provigent Ltd Communication link control using iterative code metrics
US7839952B2 (en) * 2006-12-05 2010-11-23 Provigent Ltd Data rate coordination in protected variable-rate links
US7720136B2 (en) * 2006-12-26 2010-05-18 Provigent Ltd Adaptive coding and modulation based on link performance prediction
US8315574B2 (en) 2007-04-13 2012-11-20 Broadcom Corporation Management of variable-rate communication links
US7821938B2 (en) * 2007-04-20 2010-10-26 Provigent Ltd. Adaptive coding and modulation for synchronous connections
US8001445B2 (en) * 2007-08-13 2011-08-16 Provigent Ltd. Protected communication link with improved protection indication
US8040985B2 (en) 2007-10-09 2011-10-18 Provigent Ltd Decoding of forward error correction codes in the presence of phase noise
US8259859B2 (en) * 2009-09-21 2012-09-04 Techwell Llc Method and system for carrier recovery for QAM
MX2015012910A (es) * 2013-03-15 2016-04-04 Sirius Xm Radio Inc Estimacion de potencia de ruido en sistemas de comunicaciones digitales con canales de desvanecimiento rapido.
TWI627846B (zh) * 2016-03-30 2018-06-21 晨星半導體股份有限公司 等化增強模組、解調變系統以及等化增強方法

Family Cites Families (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5157690A (en) * 1990-10-30 1992-10-20 Level One Communications, Inc. Adaptive convergent decision feedback equalizer
US5195106A (en) * 1990-11-14 1993-03-16 Motorola, Inc. Method for channel adaptive detecting/equalize
US5303263A (en) * 1991-06-25 1994-04-12 Oki Electric Industry Co., Ltd. Transmission channel characteristic equalizer
CA2073944C (en) * 1991-07-26 2000-09-19 Woo H. Paik Carrier phase recovery for an adaptive equalizer
US5414732A (en) * 1993-05-17 1995-05-09 Loral Aerospace Corp. Adaptive equalizer and method for operation at high symbol rates
US5428562A (en) * 1993-09-03 1995-06-27 At&T Corp. Fast converging adaptive filter
KR960012019B1 (ko) * 1993-11-18 1996-09-09 엘지전자 주식회사 에이치디티브이(hdtv)의 채널등화기
US5526378A (en) * 1994-12-14 1996-06-11 Thomson Consumer Electronics, Inc. Blind multipath correction for digital communication channel
US6075816A (en) * 1996-11-27 2000-06-13 Lucent Technologies, Inc. Windowing technique for blind equalization
US6313882B1 (en) * 1998-01-13 2001-11-06 Samsung Electronics Co., Ltd. TV reception apparatus using same ghost-cancellation circuitry for receiving different types of TV signals
JP3230482B2 (ja) * 1998-03-13 2001-11-19 日本電気株式会社 適応等化器
US6313885B1 (en) * 1998-03-25 2001-11-06 Samsung Electronics Co., Ltd. DTV receiver with baseband equalization filters for QAM signal and for VSB signal which employ common elements
US6215818B1 (en) * 1998-04-29 2001-04-10 Nortel Networks Limited Method and apparatus for operating an adaptive decision feedback equalizer
EP0963085A1 (de) * 1998-06-04 1999-12-08 Siemens Aktiengesellschaft Verfahren zur adaptiven Filtereinstellung in einem QAM/CAP-System
US6103970A (en) * 1998-08-20 2000-08-15 Tecstar Power Systems, Inc. Solar cell having a front-mounted bypass diode
US6418164B1 (en) * 1999-01-14 2002-07-09 Nxtwave Communications, Inc. Adaptive equalizer with enhanced error quantization
US6337878B1 (en) * 1999-03-03 2002-01-08 Nxt Wave Communications Adaptive equalizer with decision directed constant modulus algorithm
DE19921545A1 (de) * 1999-05-11 2000-11-23 Angew Solarenergie Ase Gmbh Solarzelle sowie Verfahren zur Herstellung einer solchen
KR100652028B1 (ko) * 1999-07-13 2006-11-30 엘지전자 주식회사 다매체 디지털 방송 수신기의 락 디텍트(ｌｏｃｋ ｄｅｔｅｃｔ)장치
US6635507B1 (en) * 1999-07-14 2003-10-21 Hughes Electronics Corporation Monolithic bypass-diode and solar-cell string assembly
US6775521B1 (en) * 1999-08-09 2004-08-10 Broadcom Corporation Bad frame indicator for radio telephone receivers
US7085691B2 (en) * 1999-11-04 2006-08-01 Verticalband, Limited Reliable symbols as a means of improving the performance of information transmission systems
US7110923B2 (en) * 1999-11-04 2006-09-19 Verticalband, Limited Fast, blind equalization techniques using reliable symbols
US6980602B1 (en) * 2001-01-31 2005-12-27 Comsys Communication & Signal Processing Ltd. Normalization of equalizer soft output for channels with varying noise power
US6815736B2 (en) * 2001-02-09 2004-11-09 Midwest Research Institute Isoelectronic co-doping
US7106792B2 (en) * 2001-06-04 2006-09-12 Qualcomm, Inc. Method and apparatus for estimating the signal to interference-plus-noise ratio of a wireless channel
DE10149065A1 (de) * 2001-10-05 2003-04-24 Infineon Technologies Ag Verfahren und Einrichtung zur iterativen JD-Entzerrung
EP1495538B1 (en) * 2002-04-17 2012-06-13 Thomson Licensing Equalizer mode switch
US7027503B2 (en) * 2002-06-04 2006-04-11 Qualcomm Incorporated Receiver with a decision feedback equalizer and a linear equalizer
US7190721B2 (en) * 2002-06-28 2007-03-13 Lucent Technologies Inc. Error convergence measurement circuit for providing convergence of a filter
US7116703B2 (en) * 2002-10-15 2006-10-03 Thomson Licensing Multipath signal strength indicator
KR100556401B1 (ko) * 2003-12-04 2006-03-03 엘지전자 주식회사 Ｖｓｂ 수신 시스템의 등화 장치
KR20070009685A (ko) * 2004-05-12 2007-01-18 톰슨 라이센싱 개선된 획득의 반송파 복구 아키텍처
KR20070009672A (ko) * 2004-05-12 2007-01-18 톰슨 라이센싱 등화기 에러 신호에 대한 콘스텔레이션 위치 의존적 간격크기
TWI258857B (en) * 2004-06-02 2006-07-21 Mstar Semiconductor Inc Method for automatic equalizing mode selection and its device
KR100643321B1 (ko) * 2004-06-30 2006-11-10 삼성전자주식회사 등화기의 동작 조절장치 및 그 조절방법
US7463679B2 (en) * 2005-06-27 2008-12-09 Intel Corporation Equalizer mode selection based on distribution of symbol error

Also Published As

Publication number Publication date
JP2008507860A (ja) 2008-03-13
US20080043829A1 (en) 2008-02-21
WO2005114932A1 (en) 2005-12-01
EP1745622A1 (en) 2007-01-24

Similar Documents

Publication Publication Date Title
JP4499515B2 (ja) コチャンネル干渉を検出し、軽減させるデジタルビデオ放送受信機のチャンネル状態評価装置及びその方法
US6490007B1 (en) Adaptive channel equalizer
JP4845246B2 (ja) トレーニングモードを有する適応チャネル等化器
KR0155900B1 (ko) 위상에러검출방법 및 위상 트래킹 루프회로
KR100351833B1 (ko) 디지털 ｔｖ 수신기
KR20070014165A (ko) 잡음 전력 추정치에 기반한 등화기 동기 검출기
MXPA04010248A (es) Monitor del estado del ecualizador.
KR100609941B1 (ko) 결정 지향 위상 검출기
JP2008507860A6 (ja) ノイズ強度推定に基づく等化器ロック検出器
US20050002474A1 (en) PAM radio signal receiver with phase-tracker succeeding adaptive FIR filtering and preceding adaptive IIR filtering
KR101086175B1 (ko) Ａｔｓｃ-ｄｔｖ 수신기에서의 듀얼-모드 등화기
KR101108527B1 (ko) 수신된 신호 포인트의 위치에 기초한 등화기의 로크 검출
US20090296799A1 (en) Channel identification, emulation, and frame synchronization for digital television signals
EP0827301B1 (en) Adaptive signal detection method and apparatus
US6246722B1 (en) Method of detection of misconvergence using constellation scanning in an equalizer
KR20070009672A (ko) 등화기 에러 신호에 대한 콘스텔레이션 위치 의존적 간격크기
EP1253778A2 (en) A blind equalization method for a high definition television signal
JP4921360B2 (ja) シンボルタイミングの曖昧さ訂正
CN1969520A (zh) 基于噪声功率估计的均衡器锁定检测器
KR100289583B1 (ko) 디지털 지상방송 및 케이블방송 수신기의 복조회로
US7324610B2 (en) VSB reception system

Legal Events

Date Code Title Description
PA0105 International application

Patent event date: 20061106

Patent event code: PA01051R01D

Comment text: International Patent Application

PG1501 Laying open of application
PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid