DE69130717T2 - Maximalwahrscheinlichkeitssequenzdetektor - Google Patents

Maximalwahrscheinlichkeitssequenzdetektor

Info

Publication number
DE69130717T2
DE69130717T2 DE69130717T DE69130717T DE69130717T2 DE 69130717 T2 DE69130717 T2 DE 69130717T2 DE 69130717 T DE69130717 T DE 69130717T DE 69130717 T DE69130717 T DE 69130717T DE 69130717 T2 DE69130717 T2 DE 69130717T2
Authority
DE
Germany
Prior art keywords
detector
data sources
partial path
bits
equaliser
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 - Fee Related
Application number
DE69130717T
Other languages
English (en)
Other versions
DE69130717D1 (de
Inventor
Andrew Cooper
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.)
Nokia Mobile Phones UK Ltd
Original Assignee
Nokia Mobile Phones UK 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 Nokia Mobile Phones UK Ltd filed Critical Nokia Mobile Phones UK Ltd
Application granted granted Critical
Publication of DE69130717D1 publication Critical patent/DE69130717D1/de
Publication of DE69130717T2 publication Critical patent/DE69130717T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006Arrangements for removing intersymbol interference
    • H04L25/03178Arrangements involving sequence estimation techniques
    • H04L25/03184Details concerning the metric
    • H04L25/03197Details concerning the metric methods of calculation involving metrics
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/37Decoding methods or techniques, not specific to the particular type of coding provided for in groups H03M13/03 - H03M13/35
    • H03M13/39Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes
    • H03M13/41Sequence estimation, i.e. using statistical methods for the reconstruction of the original codes using the Viterbi algorithm or Viterbi processors
DE69130717T 1990-07-19 1991-06-04 Maximalwahrscheinlichkeitssequenzdetektor Expired - Fee Related DE69130717T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9015854A GB2246272B (en) 1990-07-19 1990-07-19 Maximum likelihood sequence detector

Publications (2)

Publication Number Publication Date
DE69130717D1 DE69130717D1 (de) 1999-02-18
DE69130717T2 true DE69130717T2 (de) 1999-07-22

Family

ID=10679317

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69130717T Expired - Fee Related DE69130717T2 (de) 1990-07-19 1991-06-04 Maximalwahrscheinlichkeitssequenzdetektor

Country Status (5)

Country Link
EP (1) EP0467522B1 (de)
AT (1) ATE175538T1 (de)
DE (1) DE69130717T2 (de)
ES (1) ES2128308T3 (de)
GB (1) GB2246272B (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5291499A (en) * 1992-03-16 1994-03-01 Cirrus Logic, Inc. Method and apparatus for reduced-complexity viterbi-type sequence detectors
GB2281179B (en) * 1993-08-18 1998-03-11 Roke Manor Research Apparatus for use in equipment providing a digital radio link between a fixed and a mobile radio unit
DE69429161T2 (de) * 1993-11-29 2002-06-20 Oki Electric Ind Co Ltd Gerät zur schätzung analog entschiedener werte und eines höchstwahrscheinlichkeitssystems
US5550870A (en) * 1994-03-02 1996-08-27 Lucent Technologies Inc. Viterbi processor
JP3203941B2 (ja) * 1994-03-24 2001-09-04 松下電器産業株式会社 ビタビ復号装置
US5717723A (en) * 1994-08-17 1998-02-10 Roke Manor Research Limited Apparatus for use in equipment providing a digital radio link between a fixed radio unit and a mobile radio unit
US6023492A (en) * 1995-11-24 2000-02-08 Telefonaktiebolaget Lm Ericsson Method and apparatus for conditionally combining bit metrics in a communication system
GB2309867A (en) * 1996-01-30 1997-08-06 Sony Corp Reliability data in decoding apparatus
KR100190291B1 (ko) * 1996-07-30 1999-06-01 윤종용 비터비 디코더의 트레이스백 제어 장치
FI102230B (fi) * 1997-02-28 1998-10-30 Nokia Telecommunications Oy Vastaanottomenetelmä ja vastaanotin
US8788921B2 (en) * 2011-10-27 2014-07-22 Lsi Corporation Detector with soft pruning

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3872432A (en) * 1974-04-10 1975-03-18 Itt Synchronization circuit for a viterbi decoder
DE3725655A1 (de) * 1987-08-03 1989-02-16 Ant Nachrichtentech Verfahren zum auswerten von zweig- und pfadmetriken sowie anordnung
FI82871C (fi) 1989-05-17 1991-04-25 Nokia Mobira Oy Kretsanordning foer foerverkligande av en viterbi-algoritm.

Also Published As

Publication number Publication date
GB2246272B (en) 1994-09-14
GB9015854D0 (en) 1990-09-05
ATE175538T1 (de) 1999-01-15
EP0467522A3 (en) 1993-10-27
EP0467522A2 (de) 1992-01-22
GB2246272A (en) 1992-01-22
DE69130717D1 (de) 1999-02-18
ES2128308T3 (es) 1999-05-16
EP0467522B1 (de) 1999-01-07

Similar Documents

Publication Publication Date Title
EP0771079A3 (de) Datenübertragungsgerät
DE69130717D1 (de) Maximalwahrscheinlichkeitssequenzdetektor
EP1135877B1 (de) Turbo-Dekodierung mit Soft-Output Viterbi Dekoder
DE69739533D1 (de) Dekodierer mit analogwertentscheidungen zur dekodierung von faltungscodewörtern
KR970004433A (ko) 2개의 최상 복호 경로를 갖는 비터비 복호기
US5905743A (en) Apparatus, methods and computer program products for sequential maximum likelihood estimating communications signals using whitening path metrics
EP1231747A3 (de) Verfahren und Einrichtung zur Folgeschätzung
FR2669445B1 (fr) Dispositif prevu pour le traitement de l'algorithme de viterbi comprenant un processeur et un operateur specialise.
US7277506B1 (en) Maximum likelihood sequence estimator which computes branch metrics in real time
KR100336246B1 (ko) 디지탈프로세서및코-프로세서를구비한집적회로
ATE268517T1 (de) Optimierter turbo-decodierer
US7353450B2 (en) Block processing in a maximum a posteriori processor for reduced power consumption
US6529557B1 (en) Add-compare selection circuit
JP3252776B2 (ja) 軟出力復号装置
JP2591332B2 (ja) 誤り訂正復号装置
KR0169777B1 (ko) 고속 비터비 복호기의 구현을 위한 정규화 방법 및 장치
KR100633484B1 (ko) 래딕스-4 병렬 비터비 디코딩 장치 및 그 방법
KR0185925B1 (ko) 비터비알고리즘에 흔적삭제방법을 이용하는 복호화방법 및 그 장치
JPS62159922A (ja) 誤り訂正符号化復号化装置
KR960003095B1 (ko) 디.에스.피(DSP)를 이용한 비터 비(Viterbi) 복호기
Vityaev et al. Improved estimates of Viterbi detector path metric differences
KR19980039924A (ko) 비터비 디코더
JPH0730437A (ja) 系列推定装置
Todd et al. Computing maximum-likelihood bounds for Reed-Solomon codes over partial response channels
Yamada Convolutional Codes

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee