FR2694647B1 - Procede de decodage de canaux avec commande a la source par elargissement de l'algorithme de viterbi et utilisation de ce procede. - Google Patents
Procede de decodage de canaux avec commande a la source par elargissement de l'algorithme de viterbi et utilisation de ce procede.Info
- Publication number
- FR2694647B1 FR2694647B1 FR9309049A FR9309049A FR2694647B1 FR 2694647 B1 FR2694647 B1 FR 2694647B1 FR 9309049 A FR9309049 A FR 9309049A FR 9309049 A FR9309049 A FR 9309049A FR 2694647 B1 FR2694647 B1 FR 2694647B1
- Authority
- FR
- France
- Prior art keywords
- enlarging
- source control
- viterbi algorithm
- decoding channels
- decoding
- 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
- 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
- H03M13/4138—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors soft-output Viterbi algorithm based decoding, i.e. Viterbi decoding with weighted decisions
- H03M13/4146—Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors soft-output Viterbi algorithm based decoding, i.e. Viterbi decoding with weighted decisions soft-output Viterbi decoding according to Battail and Hagenauer in which the soft-output is determined using path metric differences along the maximum-likelihood path, i.e. "SOVA" decoding
-
- 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
- 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
- H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
-
- 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
- H04L1/0056—Systems characterized by the type of code used
- H04L1/007—Unequal error protection
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4224214A DE4224214C2 (de) | 1992-07-22 | 1992-07-22 | Verfahren zur quellengesteuerten Kanaldecodierung durch Erweiterung des Viterbi-Algorithmus |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2694647A1 FR2694647A1 (fr) | 1994-02-11 |
FR2694647B1 true FR2694647B1 (fr) | 1996-10-04 |
Family
ID=6463857
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9309049A Expired - Lifetime FR2694647B1 (fr) | 1992-07-22 | 1993-07-22 | Procede de decodage de canaux avec commande a la source par elargissement de l'algorithme de viterbi et utilisation de ce procede. |
Country Status (3)
Country | Link |
---|---|
US (1) | US5511081A (fr) |
DE (1) | DE4224214C2 (fr) |
FR (1) | FR2694647B1 (fr) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5471500A (en) * | 1994-03-08 | 1995-11-28 | At&T Ipm Corp. | Soft symbol decoding |
DE4429585C1 (de) * | 1994-08-19 | 1995-11-23 | Bosch Gmbh Robert | Verfahren zur arithmetischen Decodierung |
DE4431237A1 (de) * | 1994-09-02 | 1996-03-07 | Bosch Gmbh Robert | Verfahren zur Gewinnung von bitspezifischen Zuverlässigkeitsinformationen |
DE4437984A1 (de) * | 1994-10-25 | 1996-08-14 | Philips Patentverwaltung | Übertragungssystem mit Soft-Output-Dekodierung |
US5996103A (en) * | 1996-07-31 | 1999-11-30 | Samsung Information Systems America | Apparatus and method for correcting errors in a communication system |
FI101845B (fi) * | 1996-08-09 | 1998-08-31 | Nokia Telecommunications Oy | Menetelmä yhteyden laadun määrittämiseksi sekä vastaanotin |
US6252911B1 (en) * | 1997-06-11 | 2001-06-26 | Texas Instruments Incorporated | Trellis shaping for PCM modems |
DE59810958D1 (de) | 1997-06-13 | 2004-04-15 | Siemens Ag | Quellengesteuerte kanaldecodierung durch verwendung der intra-rahmen-korrelation |
DE19749148C2 (de) * | 1997-11-06 | 1999-12-02 | Siemens Ag | Verfahren und Einrichtung zur Datenübertragung in einem digitalen Übertragungssystem mit ARQ |
GB9824012D0 (en) * | 1998-11-03 | 1998-12-30 | Lucent Technologies Inc | Improved source controlled channel decoding |
US6668349B1 (en) * | 2000-04-14 | 2003-12-23 | Hitachi, Ltd. | Data recording/readback method and data recording/readback device for the same |
US6587987B1 (en) * | 2000-07-07 | 2003-07-01 | Lucent Technologies Inc. | Method and apparatus for extracting reliability information from partial response channels |
US6944206B1 (en) * | 2000-11-20 | 2005-09-13 | Ericsson Inc. | Rate one coding and decoding methods and systems |
US7308050B2 (en) * | 2001-06-08 | 2007-12-11 | Broadcom Corporation | Detection and mitigation of temporary impairments in a communications channel |
US7661059B2 (en) * | 2001-08-06 | 2010-02-09 | Analog Devices, Inc. | High performance turbo and Viterbi channel decoding in digital signal processors |
EP1349286A1 (fr) * | 2002-03-27 | 2003-10-01 | Siemens Aktiengesellschaft | Procédé pour le décodage d'une séquence de données codé a l'aide d'un code convolutionnel binaire |
KR100973097B1 (ko) * | 2002-03-27 | 2010-07-29 | 노키아 지멘스 네트웍스 게엠베하 운트 코. 카게 | 이진 컨벌루션 코드를 사용하여 인코딩된 데이터 시퀀스를디코딩하기 위한 방법 |
US7093188B2 (en) * | 2002-04-05 | 2006-08-15 | Alion Science And Technology Corp. | Decoding method and apparatus |
US8006170B2 (en) * | 2002-04-05 | 2011-08-23 | Sentel Corporation | Fault tolerant decoding method and apparatus including use of quality information |
US8151175B2 (en) * | 2002-04-05 | 2012-04-03 | Sentel Corporation | Fault tolerant decoding method and apparatus |
US7469373B2 (en) * | 2005-02-17 | 2008-12-23 | Broadcom Corporation | Application of a Meta-Viterbi algorithm for communication systems without intersymbol interference |
WO2007021224A1 (fr) * | 2005-08-16 | 2007-02-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Procede et agencement pour le decodage de canal utilisant des informations a priori et une combinaison souple |
ES2522272T3 (es) * | 2006-06-01 | 2014-11-14 | Telefonaktiebolaget L M Ericsson (Publ) | Descodificación de canal mejorado usando hipótesis de datos |
KR20080012434A (ko) * | 2006-08-03 | 2008-02-12 | 삼성전자주식회사 | 입력 메시지의 특성을 고려한 복호 장치 및 방법 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2087198B (en) * | 1980-10-28 | 1985-02-27 | Plessey Co Ltd | Data decoding |
NZ198844A (en) * | 1980-11-14 | 1984-05-31 | Plessey Overseas | Digital information transmission: two dimensional code |
GB2197162B (en) * | 1986-10-23 | 1991-03-27 | Plessey Co Plc | Decoding of convolutional encoded signals |
DE3910739C3 (de) * | 1989-04-03 | 1996-11-21 | Deutsche Forsch Luft Raumfahrt | Verfahren zum Verallgemeinern des Viterbi-Algorithmus und Einrichtungen zur Durchführung des Verfahrens |
DE3911999A1 (de) * | 1989-04-12 | 1990-10-18 | Philips Patentverwaltung | Uebertragungssystem |
SE465597B (sv) * | 1990-02-16 | 1991-09-30 | Ericsson Telefon Ab L M | Foerfarande att reducera inverkan av faedning hos en viterbimottagare med minst tvaa antenner |
FI84866C (fi) * | 1990-03-12 | 1992-01-27 | Nokia Mobile Phones Ltd | Foerbaettring av en viterbi-algoritm. |
FR2669445B1 (fr) * | 1990-11-15 | 1993-01-08 | Alcatel Radiotelephone | Dispositif prevu pour le traitement de l'algorithme de viterbi comprenant un processeur et un operateur specialise. |
-
1992
- 1992-07-22 DE DE4224214A patent/DE4224214C2/de not_active Expired - Lifetime
-
1993
- 1993-07-22 FR FR9309049A patent/FR2694647B1/fr not_active Expired - Lifetime
- 1993-07-22 US US08/095,708 patent/US5511081A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE4224214C2 (de) | 1995-02-09 |
DE4224214A1 (de) | 1994-01-27 |
US5511081A (en) | 1996-04-23 |
FR2694647A1 (fr) | 1994-02-11 |
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