DE602004016312D1 - Adaptive weiche demodulation für den empfang verzerrter signale - Google Patents

Adaptive weiche demodulation für den empfang verzerrter signale

Info

Publication number
DE602004016312D1
DE602004016312D1 DE602004016312T DE602004016312T DE602004016312D1 DE 602004016312 D1 DE602004016312 D1 DE 602004016312D1 DE 602004016312 T DE602004016312 T DE 602004016312T DE 602004016312 T DE602004016312 T DE 602004016312T DE 602004016312 D1 DE602004016312 D1 DE 602004016312D1
Authority
DE
Germany
Prior art keywords
distortioned
reception
signals
soft demodulation
adaptive soft
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 - Lifetime
Application number
DE602004016312T
Other languages
English (en)
Inventor
Joshua Koslov
Kumar Ramaswamy
Wen Gao
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.)
Thomson Licensing SAS
Original Assignee
Thomson Licensing SAS
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 Thomson Licensing SAS filed Critical Thomson Licensing SAS
Publication of DE602004016312D1 publication Critical patent/DE602004016312D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18517—Transmission equipment in earth stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H04L1/0016—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy involving special memory structures, e.g. look-up tables
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0047—Decoding adapted to other signal detection operation
    • H04L1/005—Iterative decoding, including iteration between signal detection and decoding operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • 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
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
DE602004016312T 2003-05-05 2004-04-24 Adaptive weiche demodulation für den empfang verzerrter signale Expired - Lifetime DE602004016312D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46794603P 2003-05-05 2003-05-05
PCT/US2004/013733 WO2004100475A2 (en) 2003-05-05 2004-04-24 Adaptive soft demodulation for reception of distorted signals

Publications (1)

Publication Number Publication Date
DE602004016312D1 true DE602004016312D1 (de) 2008-10-16

Family

ID=33435146

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004016312T Expired - Lifetime DE602004016312D1 (de) 2003-05-05 2004-04-24 Adaptive weiche demodulation für den empfang verzerrter signale

Country Status (8)

Country Link
US (1) US7464318B2 (de)
EP (3) EP1620987A2 (de)
JP (3) JP4603536B2 (de)
KR (3) KR20060010780A (de)
CN (3) CN100512244C (de)
BR (3) BRPI0410010A (de)
DE (1) DE602004016312D1 (de)
WO (3) WO2004100475A2 (de)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0410010A (pt) * 2003-05-05 2006-04-25 Thomson Licensing aparelho e método para decodificação em um sistema de modulação hierárquico
US7280613B2 (en) 2003-11-26 2007-10-09 Delphi Technologies, Inc. Method to inject hierarchical data onto single carrier stream
US7215713B2 (en) 2003-11-26 2007-05-08 Delphi Technologies, Inc. Method to minimize compatibility error in hierarchical modulation
US7499696B2 (en) 2003-11-26 2009-03-03 Delphi Technologies, Inc. Method to optimize hierarchical modulation for a diversity system
US7230998B2 (en) 2003-11-26 2007-06-12 Delphi Technologies, Inc. Method to increase performance of secondary data in a hierarchical modulation scheme
US20050113040A1 (en) 2003-11-26 2005-05-26 Walker Glenn A. Method to minimize compatibility error in hierarchical modulation using variable phase
US7230992B2 (en) 2003-11-26 2007-06-12 Delphi Technologies, Inc. Method to create hierarchical modulation in OFDM
US7386056B2 (en) 2003-11-26 2008-06-10 Delphi Technologies, Inc. Method to increase performance of secondary data in a hierarchical modulation scheme
WO2005086444A1 (en) * 2004-02-19 2005-09-15 Thomson Licensing Method and apparatus for carrier recovery in a communications system
US7516390B2 (en) * 2005-01-10 2009-04-07 Broadcom Corporation LDPC (Low Density Parity Check) coding and interleaving implemented in MIMO communication systems
US7660368B2 (en) 2005-01-11 2010-02-09 Qualcomm Incorporated Bit log likelihood ratio evaluation
CN101120566B (zh) * 2005-01-11 2010-12-01 高通股份有限公司 用于在一分层调制系统中解码数据的方法和装置
US7830983B2 (en) 2005-03-01 2010-11-09 Delphi Technologies, Inc. Method to minimize degradation in a D-MPSK hierarchical modulation system
KR100660056B1 (ko) * 2005-11-07 2006-12-20 한국전자통신연구원 계층적 변조 신호의 독립적 스트림 추출 및 연판정 장치 및그 방법
ES2736149T3 (es) 2006-09-26 2019-12-26 Qualcomm Inc Redes de sensores basadas en dispositivos inalámbricos
CN101188589B (zh) * 2006-11-15 2012-06-06 上海瑞高信息技术有限公司 广播数据在卫星同步分配网中的同步适配方法及装置
KR100886799B1 (ko) * 2006-12-06 2009-03-05 한국전자통신연구원 지상파 디지털 멀티미디어 방송의 계층적 변조 방법 및장치
DE102007053091A1 (de) * 2007-11-07 2009-05-14 Rohde & Schwarz Gmbh & Co. Kg Verfahren und Vorrichtung zur Decodierung von faltungscodierten Signalen
KR101429677B1 (ko) * 2007-11-29 2014-08-14 삼성전자주식회사 무선통신 시스템에서 협력다이버시티를 위한 시스템, 장치및 방법
KR100903877B1 (ko) * 2007-12-13 2009-06-24 한국전자통신연구원 디지털 방송 시스템에서 신호 수신 장치 및 방법
US8184745B2 (en) * 2008-12-04 2012-05-22 Altobridge Limited System and method of generating soft bits
US8379769B2 (en) 2010-03-10 2013-02-19 Delphi Technologies, Inc. Communication system utilizing a hierarchically modulated signal and method thereof
US20120272113A1 (en) * 2011-04-19 2012-10-25 Cambridge Silicon Radio Limited Error detection and correction in transmitted digital signals
US9094125B2 (en) * 2012-05-24 2015-07-28 Nec Laboratories America, Inc. Multidimensional coded-modulation for high-speed optical transport over few-mode fibers
RU2013125784A (ru) * 2013-06-04 2014-12-10 ЭлЭсАй Корпорейшн Устройство для обработки сигналов, переносящих кодированные с модуляцией биты четности
WO2015137049A1 (ja) * 2014-03-13 2015-09-17 三菱電機株式会社 尤度生成装置およびその方法
JP6601406B2 (ja) * 2014-10-06 2019-11-06 ソニー株式会社 受信装置、受信方法、およびプログラム
EP3499729B1 (de) * 2016-09-01 2020-05-27 Mitsubishi Electric Corporation Wahrscheinlichkeitsgenerator, empfangsvorrichtung, wahrscheinlichkeitsgenerierungsverfahren und optisches übertragungssystem
CN106452645B (zh) * 2016-10-26 2018-11-23 西安空间无线电技术研究所 一种基于跨层设计的星群网络时间同步方法
US10931401B2 (en) * 2017-06-27 2021-02-23 Mitsubishi Electric Corporation Likelihood generation device
CN107786892B (zh) * 2017-10-27 2020-01-14 深圳Tcl数字技术有限公司 一种播出数字电视的方法、装置及可读存储介质
CN111277830B (zh) * 2018-12-05 2022-09-23 华为技术有限公司 一种编码方法、解码方法及装置

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4742533A (en) * 1987-01-02 1988-05-03 Motorola, Inc. Soft decision digital communication apparatus
FI85548C (fi) * 1990-06-14 1992-04-27 Nokia Oy Ab Mottagningsfoerfarande och mottagare foer diskreta signaler.
US5657354A (en) * 1995-05-15 1997-08-12 Thesling, Iii; William H. Planar approximating method for computing the log-likelihood ratio optimal signal metric of each component code decoder in 8-PSK block coded modulation systems
GB9520445D0 (en) * 1995-10-06 1995-12-06 British Telecomm Convolutional codes
US6119083A (en) * 1996-02-29 2000-09-12 British Telecommunications Public Limited Company Training process for the classification of a perceptual signal
JP3654391B2 (ja) * 1996-08-29 2005-06-02 ソニー株式会社 データ受信装置および方法
US6335954B1 (en) * 1996-12-27 2002-01-01 Ericsson Inc. Method and apparatus for joint synchronization of multiple receive channels
US5966412A (en) * 1997-06-30 1999-10-12 Thomson Consumer Electronics, Inc. Apparatus and method for processing a Quadrature Amplitude Modulated (QAM) signal
US6005897A (en) * 1997-12-16 1999-12-21 Mccallister; Ronald D. Data communication system and method therefor
JP3392037B2 (ja) * 1998-01-30 2003-03-31 株式会社ケンウッド ディジタル復調器
JP2000068959A (ja) * 1998-08-26 2000-03-03 Nippon Telegr & Teleph Corp <Ntt> 無線送信装置および無線通信装置
US6275523B1 (en) * 1998-11-03 2001-08-14 Textronic, Inc. In-service measurement of transmitter nonlinearities
JP2000278340A (ja) * 1999-03-24 2000-10-06 Sanyo Electric Co Ltd デジタル放送受信機
JP2000315957A (ja) * 1999-04-30 2000-11-14 Jisedai Digital Television Hoso System Kenkyusho:Kk 復号装置
JP2001102963A (ja) * 1999-10-01 2001-04-13 Matsushita Electric Ind Co Ltd 同期装置及び同期方法
US6594318B1 (en) * 1999-12-02 2003-07-15 Qualcomm Incorporated Method and apparatus for computing soft decision input metrics to a turbo decoder
EP1170919A1 (de) * 2000-07-04 2002-01-09 TELEFONAKTIEBOLAGET LM ERICSSON (publ) Verfahren und System zur Verbesserung der Funktion eines Kommunikationssystems mit Schichtprotokollstapel
US7099384B1 (en) * 2000-09-01 2006-08-29 Qualcomm, Inc. Method and apparatus for time-division power assignments in a wireless communication system
JP2002111768A (ja) * 2000-09-26 2002-04-12 Sony Corp デジタル衛星放送復調装置及び方法
US7006841B2 (en) * 2000-12-20 2006-02-28 Lucent Technologies Inc Method to control base station transmit power drift during soft handoffs
JP3506330B2 (ja) * 2000-12-27 2004-03-15 松下電器産業株式会社 データ送信装置
US6834088B2 (en) * 2001-03-12 2004-12-21 Motorola, Inc. Method and apparatus for calculating bit log-likelihood ratios for QAM signals
US7209524B2 (en) * 2001-04-27 2007-04-24 The Directv Group, Inc. Layered modulation for digital signals
EP1335512B1 (de) * 2002-02-05 2007-02-28 Hughes Electronics Corporation Signalvorverarbeitung der überlagerten Signale in einem digitalen Modulationsschema mit überlagerten Signalen zur Verwendung von bestehenden Empfängern
EP1502439B1 (de) * 2002-04-30 2007-06-20 Koninklijke Philips Electronics N.V. Rückwarts-kompatibles übertragungssystem für dvb-s standard
BRPI0410010A (pt) * 2003-05-05 2006-04-25 Thomson Licensing aparelho e método para decodificação em um sistema de modulação hierárquico

Also Published As

Publication number Publication date
CN1784877A (zh) 2006-06-07
WO2004100475A2 (en) 2004-11-18
JP2006527532A (ja) 2006-11-30
JP2006525767A (ja) 2006-11-09
WO2004100479A1 (en) 2004-11-18
KR101051213B1 (ko) 2011-07-21
WO2004100478A3 (en) 2005-05-19
EP1620986A1 (de) 2006-02-01
EP1620984A2 (de) 2006-02-01
CN100512244C (zh) 2009-07-08
EP1620984B1 (de) 2008-09-03
CN1784878A (zh) 2006-06-07
US20060212776A1 (en) 2006-09-21
KR20060010781A (ko) 2006-02-02
JP4516959B2 (ja) 2010-08-04
WO2004100478B1 (en) 2005-07-14
WO2004100478A2 (en) 2004-11-18
CN1784875A (zh) 2006-06-07
CN1784877B (zh) 2012-09-26
KR20060054179A (ko) 2006-05-22
BRPI0410010A (pt) 2006-04-25
WO2004100475A3 (en) 2005-01-13
JP4603536B2 (ja) 2010-12-22
JP4642753B2 (ja) 2011-03-02
BRPI0410013A (pt) 2006-04-25
US7464318B2 (en) 2008-12-09
JP2006525763A (ja) 2006-11-09
EP1620987A2 (de) 2006-02-01
KR20060010780A (ko) 2006-02-02
BRPI0410036A (pt) 2006-04-25

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