DE69627737T2 - Verfahren und Einrichtung zum Empfang von durch Intersymbolinterferenz getroffenen Signalen - Google Patents

Verfahren und Einrichtung zum Empfang von durch Intersymbolinterferenz getroffenen Signalen

Info

Publication number
DE69627737T2
DE69627737T2 DE69627737T DE69627737T DE69627737T2 DE 69627737 T2 DE69627737 T2 DE 69627737T2 DE 69627737 T DE69627737 T DE 69627737T DE 69627737 T DE69627737 T DE 69627737T DE 69627737 T2 DE69627737 T2 DE 69627737T2
Authority
DE
Germany
Prior art keywords
receiving signals
signals obtained
intersymbol interference
intersymbol
interference
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
DE69627737T
Other languages
English (en)
Other versions
DE69627737D1 (de
Inventor
Valter Benedetto
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.)
Telecom Italia SpA
Original Assignee
Telecom Italia Lab SpA
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 Telecom Italia Lab SpA filed Critical Telecom Italia Lab SpA
Application granted granted Critical
Publication of DE69627737D1 publication Critical patent/DE69627737D1/de
Publication of DE69627737T2 publication Critical patent/DE69627737T2/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
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03286—Arrangements for operating in conjunction with other apparatus with channel-decoding circuitry
    • 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
    • H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
    • 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
    • H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
    • H03M13/256—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM] with trellis coding, e.g. with convolutional codes and TCM
    • 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
    • H03M13/29—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 combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
    • H03M13/2939—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 combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes using convolutional 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
    • 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
    • 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
    • H04L1/0064—Concatenated codes
    • H04L1/0065—Serial concatenated codes
    • 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
    • H04L1/0071—Use of interleaving
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Artificial Intelligence (AREA)
  • Error Detection And Correction (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Noise Elimination (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
DE69627737T 1995-02-17 1996-02-13 Verfahren und Einrichtung zum Empfang von durch Intersymbolinterferenz getroffenen Signalen Expired - Lifetime DE69627737T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT95TO000114A IT1279114B1 (it) 1995-02-17 1995-02-17 Procedimento per la ricezione di segnali affetti da interferenza intersimbolica e relativo dispositivo.

Publications (2)

Publication Number Publication Date
DE69627737D1 DE69627737D1 (de) 2003-06-05
DE69627737T2 true DE69627737T2 (de) 2003-12-18

Family

ID=11413221

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69627737T Expired - Lifetime DE69627737T2 (de) 1995-02-17 1996-02-13 Verfahren und Einrichtung zum Empfang von durch Intersymbolinterferenz getroffenen Signalen

Country Status (6)

Country Link
US (1) US5825832A (de)
EP (1) EP0727890B1 (de)
JP (1) JP3327505B2 (de)
CA (1) CA2169709C (de)
DE (1) DE69627737T2 (de)
IT (1) IT1279114B1 (de)

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EP0884879A3 (de) * 1997-06-13 1999-03-17 Canon Kabushiki Kaisha QAM-Übertragung unter Verwendung von Spreizspektrumtechnik, und Folgeschätzung
DE59810958D1 (de) * 1997-06-13 2004-04-15 Siemens Ag Quellengesteuerte kanaldecodierung durch verwendung der intra-rahmen-korrelation
US6185716B1 (en) * 1998-01-30 2001-02-06 Maxtor Corporation Dual detector read channel with semi-soft detection
FR2776873B1 (fr) 1998-03-25 2000-06-02 Matra Communication Procede de detection d'une sequence de symboles discrets a partir d'un signal d'observation, et processeur de viterbi mettant en oeuvre un tel procede
DE19815701A1 (de) * 1998-04-08 1999-10-14 Bosch Gmbh Robert Verfahren zum Demodulieren einer mit einer digitalen Symbolfolge modulierten Trägerwelle
JP4178752B2 (ja) * 1998-05-28 2008-11-12 ソニー株式会社 畳み込み符号の軟出力復号装置及び軟出力復号方法
US6327317B1 (en) * 1999-09-10 2001-12-04 Telefonaktiebolaget Lm Ericsson (Publ) Combined equalization and decoding techniques
US7085691B2 (en) * 1999-11-04 2006-08-01 Verticalband, Limited Reliable symbols as a means of improving the performance of information transmission systems
US7143013B2 (en) * 1999-11-04 2006-11-28 Verticalband, Limited Reliable symbols as a means of improving the performance of information transmission systems
US7110923B2 (en) * 1999-11-04 2006-09-19 Verticalband, Limited Fast, blind equalization techniques using reliable symbols
US6758435B2 (en) * 1999-12-09 2004-07-06 Rheinmetall W & M Gmbh Guide assembly for a missile
US6690739B1 (en) 2000-01-14 2004-02-10 Shou Yee Mui Method for intersymbol interference compensation
US7117418B2 (en) 2000-09-11 2006-10-03 Comtech Aha Corporation Soft input-soft output forward error correction decoding for turbo codes
US7558343B2 (en) * 2001-11-21 2009-07-07 Siemens Aktiengesellschaft Tap-selectable viterbi equalizer
KR100448487B1 (ko) * 2002-06-27 2004-09-13 광주과학기술원 인터리브된 라이시안 페이딩 채널에 적합한 비동기식 다중격자 부호화 연속 위상 변조기의 격자 부호화기 설계방법
US7154965B2 (en) 2002-10-08 2006-12-26 President And Fellows Of Harvard College Soft detection of data symbols in the presence of intersymbol interference and timing error
JP3749889B2 (ja) * 2002-10-17 2006-03-01 株式会社東芝 Ｐｒｍｌ検出を適用する信号処理デバイス、同デバイスを備えたディスク記憶装置、及び同装置におけるフィードバック制御のための信号処理方法
US7251302B2 (en) 2003-12-05 2007-07-31 Dell Products L.P. Method, system and apparatus for quantifying the contribution of inter-symbol interference jitter on timing skew budget
US7526022B2 (en) * 2004-05-19 2009-04-28 Harris Corporation Low complexity equalizer
US20060031431A1 (en) * 2004-05-21 2006-02-09 Bea Systems, Inc. Reliable updating for a service oriented architecture
US7492839B2 (en) * 2004-07-30 2009-02-17 Hellosoft Inc. Efficient implementation of GSM/GPRS equalizer
US7222288B2 (en) * 2004-07-30 2007-05-22 Hellosoft, Inc. Modified soft output Viterbi algorithm for truncated trellis
US7360147B2 (en) * 2005-05-18 2008-04-15 Seagate Technology Llc Second stage SOVA detector
US7502982B2 (en) * 2005-05-18 2009-03-10 Seagate Technology Llc Iterative detector with ECC in channel domain
US7395461B2 (en) * 2005-05-18 2008-07-01 Seagate Technology Llc Low complexity pseudo-random interleaver
US7746970B2 (en) * 2005-11-15 2010-06-29 Qualcomm Incorporated Method and apparatus for filtering noisy estimates to reduce estimation errors
US7627064B2 (en) * 2006-06-30 2009-12-01 Intel Corporation System and method for enhanced symbol generation
US8005166B2 (en) * 2006-11-14 2011-08-23 Samsung Electronics Co., Ltd. System for digital television broadcasting using modified 2/3 trellis coding
US20090322961A1 (en) * 2008-06-27 2009-12-31 Limberg Allen Leroy System for digital television broadcasting using modified 2/3 trellis coding
US8407563B2 (en) * 2008-12-31 2013-03-26 Stmicroelectronics, Inc. Low-complexity soft-decision decoding of error-correction codes
US8854945B2 (en) * 2011-11-09 2014-10-07 Qualcomm Incorporated Enhanced adaptive gain control in heterogeneous networks
US8929432B2 (en) 2012-09-07 2015-01-06 Sony Corporation Combination A/53 and A/153 receiver using a HIHO viterbi decoder
US9768989B2 (en) * 2013-05-07 2017-09-19 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for soft symbol generation in a communication receiver
US8947812B1 (en) 2014-03-27 2015-02-03 Western Digital Technologies, Inc. Data storage device comprising equalizer filter and inter-track interference filter
US9183877B1 (en) 2015-03-20 2015-11-10 Western Digital Technologies, Inc. Data storage device comprising two-dimensional data dependent noise whitening filters for two-dimensional recording

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3910739C3 (de) * 1989-04-03 1996-11-21 Deutsche Forsch Luft Raumfahrt Verfahren zum Verallgemeinern des Viterbi-Algorithmus und Einrichtungen zur Durchführung des Verfahrens

Also Published As

Publication number Publication date
EP0727890B1 (de) 2003-05-02
JP3327505B2 (ja) 2002-09-24
IT1279114B1 (it) 1997-12-04
ITTO950114A0 (it) 1995-02-17
JPH08256184A (ja) 1996-10-01
EP0727890A2 (de) 1996-08-21
EP0727890A3 (de) 1999-08-11
CA2169709A1 (en) 1996-08-18
CA2169709C (en) 2000-07-18
ITTO950114A1 (it) 1996-08-17
US5825832A (en) 1998-10-20
DE69627737D1 (de) 2003-06-05

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: TELECOM ITALIA S.P.A., MAILAND/MILANO, IT

8364 No opposition during term of opposition