DE69429161T2 - Gerät zur schätzung analog entschiedener werte und eines höchstwahrscheinlichkeitssystems - Google Patents
Gerät zur schätzung analog entschiedener werte und eines höchstwahrscheinlichkeitssystemsInfo
- Publication number
- DE69429161T2 DE69429161T2 DE69429161T DE69429161T DE69429161T2 DE 69429161 T2 DE69429161 T2 DE 69429161T2 DE 69429161 T DE69429161 T DE 69429161T DE 69429161 T DE69429161 T DE 69429161T DE 69429161 T2 DE69429161 T2 DE 69429161T2
- Authority
- DE
- Germany
- Prior art keywords
- analogue
- estimating
- different values
- probability system
- highly
- 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
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
- H04L25/03178—Arrangements involving sequence estimation techniques
- H04L25/03312—Arrangements specific to the provision of output signals
- H04L25/03318—Provision of soft decisions
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
- H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/37—Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
- H03M13/39—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
- H03M13/41—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/63—Joint error correction and other techniques
- H03M13/6331—Error control coding in combination with equalisation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
- H03M13/23—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using convolutional codes, e.g. unit memory codes
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29784793 | 1993-11-29 | ||
PCT/JP1994/000386 WO1995015034A1 (fr) | 1993-11-29 | 1994-03-10 | Dispositif d'estimation d'une valeur d'evaluation molle et dispositif d'estimation d'un systeme de vraisemblance maximale |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69429161D1 DE69429161D1 (de) | 2002-01-03 |
DE69429161T2 true DE69429161T2 (de) | 2002-06-20 |
Family
ID=17851925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69429161T Expired - Lifetime DE69429161T2 (de) | 1993-11-29 | 1994-03-10 | Gerät zur schätzung analog entschiedener werte und eines höchstwahrscheinlichkeitssystems |
Country Status (5)
Country | Link |
---|---|
US (1) | US6302576B1 (de) |
EP (1) | EP0682414B1 (de) |
DE (1) | DE69429161T2 (de) |
FI (1) | FI953461A (de) |
WO (1) | WO1995015034A1 (de) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2305828B (en) * | 1995-09-29 | 2000-06-14 | Sony Corp | Automatic equalizer and digital signal reproducing apparatus carrying the same |
US5905757A (en) * | 1996-10-04 | 1999-05-18 | Motorola, Inc. | Filter co-processor |
ATE210348T1 (de) * | 1997-02-04 | 2001-12-15 | Nokia Networks Oy | Kompensation der dopplerverschiebung in einem mobilkommunikationssystem |
FI102335B (fi) * | 1997-02-28 | 1998-11-13 | Nokia Telecommunications Oy | Vastaanottomenetelmä ja vastaanotin |
EP0945989A1 (de) * | 1998-03-12 | 1999-09-29 | Hitachi Micro Systems Europe Limited | Viterbi-Dekodierung |
JP3230482B2 (ja) * | 1998-03-13 | 2001-11-19 | 日本電気株式会社 | 適応等化器 |
US6185251B1 (en) | 1998-03-27 | 2001-02-06 | Telefonaktiebolaget Lm Ericsson | Equalizer for use in multi-carrier modulation systems |
AU8804698A (en) * | 1998-06-29 | 2000-01-17 | Nokia Networks Oy | Symbol estimation using soft-output algorithm and feedback |
US6529567B1 (en) * | 1999-03-10 | 2003-03-04 | Motorola, Inc. | Electronic apparatus and method for receiving noisy signals |
US6466616B1 (en) * | 1999-07-02 | 2002-10-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Power efficient equalization |
DE19935824A1 (de) * | 1999-07-29 | 2001-02-15 | Siemens Ag | Verfahren zum Erzeugen von Zuverlässigkeitsinformationen für die Kanaldecodierung in einem Funkempfänger sowie entsprechender Funkempfänger |
US6625236B1 (en) | 2000-02-08 | 2003-09-23 | Ericsson Inc. | Methods and systems for decoding symbols by combining matched-filtered samples with hard symbol decisions |
US7058141B1 (en) * | 2000-06-02 | 2006-06-06 | Nec Usa, Inc. | MLSE decoding of PRS type inter-bin interference in receiver-end windowed DMT system |
US6708308B2 (en) * | 2001-01-10 | 2004-03-16 | International Business Machines Corporation | Soft output viterbi algorithm (SOVA) with error filters |
US6823027B2 (en) | 2001-03-05 | 2004-11-23 | Telefonaktiebolaget Lm Ericsson (Publ) | Method for enhancing soft-value information |
US7453933B2 (en) * | 2001-05-04 | 2008-11-18 | Lucent Technologies Inc. | Method of estimating a signal-to-interference+noise ratio (SINR) using data samples |
KR100450949B1 (ko) * | 2001-09-18 | 2004-10-02 | 삼성전자주식회사 | 데이터 통신 시스템에서 채널 복호기 입력 연성 결정 값계산 장치 및 방법 |
US7107514B1 (en) | 2002-08-27 | 2006-09-12 | Marvell International Ltd. | Method and apparatus for detecting Viterbi decoder errors due to quasi-catastophic sequences |
US8144572B2 (en) * | 2004-09-14 | 2012-03-27 | Qualcomm Incorporated | Detection and mitigation of interference and jammers in an OFDM system |
US7965782B1 (en) | 2007-05-11 | 2011-06-21 | Redpine Signals, Inc. | Reduced complexity maximum likelihood decoder for MIMO communications |
JP5299130B2 (ja) * | 2009-07-03 | 2013-09-25 | 富士通セミコンダクター株式会社 | 受信データ処理回路及び受信データ処理切り替え方法 |
WO2019142912A1 (ja) * | 2018-01-19 | 2019-07-25 | 日本電信電話株式会社 | シンボル判定装置及びシンボル判定方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4571734A (en) * | 1983-08-05 | 1986-02-18 | International Business Machines Corporation | Method and apparatus for decoding the output signal of a partial-response class-IV communication or recording-device channel |
JPS61161027A (ja) | 1985-01-08 | 1986-07-21 | Mitsubishi Electric Corp | ヴイタビ復号器 |
JPS61230430A (ja) | 1985-04-04 | 1986-10-14 | Mitsubishi Electric Corp | 加算比較選択回路 |
US5271042A (en) * | 1989-10-13 | 1993-12-14 | Motorola, Inc. | Soft decision decoding with channel equalization |
US5144644A (en) * | 1989-10-13 | 1992-09-01 | Motorola, Inc. | Soft trellis decoding |
GB2238692B (en) | 1989-11-29 | 1993-12-01 | Technophone Ltd | Data symbol estimation |
JP2614524B2 (ja) | 1990-03-02 | 1997-05-28 | 国際電信電話株式会社 | 誤り訂正符号の復号方法 |
DE69129768T2 (de) | 1990-03-30 | 1999-02-25 | Nec Corp | Störungsunempfindlicher Raumdiversityempfänger |
GB2246272B (en) | 1990-07-19 | 1994-09-14 | Technophone Ltd | Maximum likelihood sequence detector |
US5134635A (en) * | 1990-07-30 | 1992-07-28 | Motorola, Inc. | Convolutional decoder using soft-decision decoding with channel state information |
US5142551A (en) * | 1991-02-28 | 1992-08-25 | Motorola, Inc. | Signal weighting system for digital receiver |
US5214675A (en) | 1991-07-02 | 1993-05-25 | Motorola, Inc. | System and method for calculating channel gain and noise variance of a communication channel |
US5414738A (en) * | 1993-11-09 | 1995-05-09 | Motorola, Inc. | Maximum likelihood paths comparison decoder |
US5471500A (en) * | 1994-03-08 | 1995-11-28 | At&T Ipm Corp. | Soft symbol decoding |
-
1994
- 1994-03-10 DE DE69429161T patent/DE69429161T2/de not_active Expired - Lifetime
- 1994-03-10 EP EP94909296A patent/EP0682414B1/de not_active Expired - Lifetime
- 1994-03-10 WO PCT/JP1994/000386 patent/WO1995015034A1/ja active IP Right Grant
- 1994-03-10 US US08/495,456 patent/US6302576B1/en not_active Expired - Lifetime
-
1995
- 1995-07-18 FI FI953461A patent/FI953461A/fi unknown
Also Published As
Publication number | Publication date |
---|---|
FI953461A (fi) | 1995-09-25 |
US6302576B1 (en) | 2001-10-16 |
WO1995015034A1 (fr) | 1995-06-01 |
EP0682414A4 (de) | 1997-02-26 |
FI953461A0 (fi) | 1995-07-18 |
EP0682414A1 (de) | 1995-11-15 |
EP0682414B1 (de) | 2001-11-21 |
DE69429161D1 (de) | 2002-01-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: CANON KABUSHIKI KAISHA, TOKIO/TOKYO, JP |
|
8328 | Change in the person/name/address of the agent |
Representative=s name: BETTEN & RESCH, 80333 MUENCHEN |