DE69124413D1 - Adaptives System zur Schätzung der Kanalimpulsantwort durch Maximalwahrscheinlichkeitssequenzschätzung - Google Patents

Adaptives System zur Schätzung der Kanalimpulsantwort durch Maximalwahrscheinlichkeitssequenzschätzung

Info

Publication number
DE69124413D1
DE69124413D1 DE69124413T DE69124413T DE69124413D1 DE 69124413 D1 DE69124413 D1 DE 69124413D1 DE 69124413 T DE69124413 T DE 69124413T DE 69124413 T DE69124413 T DE 69124413T DE 69124413 D1 DE69124413 D1 DE 69124413D1
Authority
DE
Germany
Prior art keywords
estimating
impulse response
channel impulse
maximum probability
adaptive system
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
DE69124413T
Other languages
English (en)
Other versions
DE69124413T2 (de
Inventor
Kazuhiro Okanoue
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.)
NEC Corp
Original Assignee
NEC Corp
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
Priority claimed from JP2085640A external-priority patent/JP2546022B2/ja
Priority claimed from JP8563890A external-priority patent/JPH03284013A/ja
Application filed by NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE69124413D1 publication Critical patent/DE69124413D1/de
Publication of DE69124413T2 publication Critical patent/DE69124413T2/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
    • 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
    • H04L25/03337—Arrangements involving per-survivor processing
    • 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
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03292—Arrangements for operating in conjunction with other apparatus with channel estimation circuitry
DE69124413T 1990-03-30 1991-03-28 Adaptives System zur Schätzung der Kanalimpulsantwort durch Maximalwahrscheinlichkeitssequenzschätzung Expired - Lifetime DE69124413T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2085640A JP2546022B2 (ja) 1990-03-30 1990-03-30 適応型通信路インパルスレスポンス推定方式
JP8563890A JPH03284013A (ja) 1990-03-30 1990-03-30 適応型最尤系列推定方式及び装置

Publications (2)

Publication Number Publication Date
DE69124413D1 true DE69124413D1 (de) 1997-03-13
DE69124413T2 DE69124413T2 (de) 1997-06-05

Family

ID=26426647

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69124413T Expired - Lifetime DE69124413T2 (de) 1990-03-30 1991-03-28 Adaptives System zur Schätzung der Kanalimpulsantwort durch Maximalwahrscheinlichkeitssequenzschätzung

Country Status (4)

Country Link
US (1) US5224127A (de)
EP (1) EP0453814B1 (de)
CA (1) CA2039373C (de)
DE (1) DE69124413T2 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2546022B2 (ja) 1990-03-30 1996-10-23 日本電気株式会社 適応型通信路インパルスレスポンス推定方式
US5142551A (en) * 1991-02-28 1992-08-25 Motorola, Inc. Signal weighting system for digital receiver
US5436928A (en) * 1991-04-08 1995-07-25 Nippon Telegraph And Telephone Corporation Method and apparatus for equalizing transmission line characteristics which vary at high speed in mobile radio communication
CA2097693C (en) * 1991-10-21 1999-12-21 Bruce Dale Mueller System and method for calculating a state transition metric in a viterbi equalizer
DE4135953A1 (de) * 1991-10-31 1993-05-06 Rohde & Schwarz Gmbh & Co Kg, 8000 Muenchen, De Verfahren zum bestimmen der komplexen impulsantwort eines funkkanals
US5862192A (en) * 1991-12-31 1999-01-19 Lucent Technologies Inc. Methods and apparatus for equalization and decoding of digital communications channels using antenna diversity
CA2083304C (en) * 1991-12-31 1999-01-26 Stephen R. Huszar Equalization and decoding for digital communication channel
DE4201810A1 (de) * 1992-01-24 1993-07-29 Aeg Mobile Communication Digitales nachrichtenuebertragungssystem
US5615233A (en) * 1992-07-22 1997-03-25 Motorola, Inc. Method for channel estimation using individual adaptation
JP2571008B2 (ja) * 1993-12-24 1997-01-16 日本電気株式会社 適応型最尤系列推定器
US5615226A (en) * 1995-02-27 1997-03-25 Motorola, Inc. Method and receiver for demodulating a received signal
JPH09294095A (ja) * 1996-04-26 1997-11-11 Oki Electric Ind Co Ltd 適応等化器
JPH1141115A (ja) * 1997-07-23 1999-02-12 Mitsubishi Electric Corp ディジタルデータ復調装置
JPH1188118A (ja) * 1997-09-03 1999-03-30 Matsushita Electric Ind Co Ltd マッチトフィルタ及びタイミング検出方法
GB2335123B (en) * 1998-03-07 2003-08-13 Siemens Ag Communications receiver and method of detecting data from received signals
FI104772B (fi) * 1998-03-23 2000-03-31 Nokia Networks Oy Itseoptimoiva kanavakorjaus- ja ilmaisumenetelmä ja itseoptimoiva kanavakorjain/ilmaisin
US6570910B1 (en) 1999-10-25 2003-05-27 Ericsson Inc. Baseband processor with look-ahead parameter estimation capabilities
US7440489B2 (en) 2001-08-07 2008-10-21 Ericsson Inc. Method and apparatus for selective demodulation and decoding of communications signals
US6820227B2 (en) * 2001-11-15 2004-11-16 International Business Machines Corporation Method and apparatus for performing error checking

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62233933A (ja) * 1986-04-03 1987-10-14 Toshiba Corp ヴイタビ復号法
GB8609711D0 (en) * 1986-04-21 1986-05-29 Clark A P Channel estimation & detection
US4885757A (en) * 1987-06-01 1989-12-05 Texas Instruments Incorporated Digital adaptive receiver employing maximum-likelihood sequence estimation with neural networks
JPH03195129A (ja) * 1989-12-22 1991-08-26 Mitsubishi Electric Corp 最尤系列推定装置

Also Published As

Publication number Publication date
CA2039373C (en) 1996-09-10
EP0453814B1 (de) 1997-01-29
EP0453814A3 (en) 1992-09-23
DE69124413T2 (de) 1997-06-05
EP0453814A2 (de) 1991-10-30
CA2039373A1 (en) 1991-10-01
US5224127A (en) 1993-06-29

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