BR9914478A - Processo de equalização numérica, e receptor de radiocomunicação que utiliza esse processo - Google Patents

Processo de equalização numérica, e receptor de radiocomunicação que utiliza esse processo

Info

Publication number
BR9914478A
BR9914478A BR9914478-6A BR9914478A BR9914478A BR 9914478 A BR9914478 A BR 9914478A BR 9914478 A BR9914478 A BR 9914478A BR 9914478 A BR9914478 A BR 9914478A
Authority
BR
Brazil
Prior art keywords
roots
numerical
equalization
response
radio communication
Prior art date
Application number
BR9914478-6A
Other languages
English (en)
Inventor
Jean-Louis Dornstetter
Nidham Ben Rached
Corinne Bonhomme
Original Assignee
Cellular Nortel Matra
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 FR9811095A external-priority patent/FR2783119A1/fr
Application filed by Cellular Nortel Matra filed Critical Cellular Nortel Matra
Publication of BR9914478A publication Critical patent/BR9914478A/pt

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
    • H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
    • 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
    • H04L25/03203—Trellis search techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

Patente de Invenção: <B>''PROCESSO DE EQUALIZAçãO NUMéRICA, E RECEPTOR DE RADIOCOMUNICAçãO QUE UTILIZA ESSE PROCESSO''<D>. Para tratar amostras de um sinal recebido por intermédio de um canal representado por uma resposta impulsional de W+1 coeficientes, determinam-se a W raízes de transformada em Z da resposta do canal, produz-se um sinal intermediário, equalizando o sinal recebido por um método de ''zero forcing" ou análogo sobre a base de uma resposta impulsional, cuja transformada em Z é um polinómio em Z^ -^ ¹ de grau W-p tendo por raízes aquelas das W raízes que são as mais afastadas do círculo unidade, depois são obtidas as estimativas dos símbolos do sinal transmitido, aplicando-se ao sinal intermediário um método de equalização de tipo Viterbi ou análogo sobre a base de uma resposta impulsional cuja transformada em Z é um polinómio em Z^ -^ ¹ de grau p tendo por raízes aquelas das W raízes que são as mais próximas do círculo unidade.
BR9914478-6A 1998-09-04 1999-09-02 Processo de equalização numérica, e receptor de radiocomunicação que utiliza esse processo BR9914478A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9811095A FR2783119A1 (fr) 1998-09-04 1998-09-04 Procede d'egalisation numerique, et recepteur de radiocommunication mettant en oeuvre un tel procede
FR9812552A FR2783120B1 (fr) 1998-09-04 1998-10-07 Procede d'egalisation numerique, et recepteur de radiocommunication mettant en oeuvre un tel procede
PCT/FR1999/002089 WO2000014936A1 (fr) 1998-09-04 1999-09-02 Procede d'egalisation numerique, et recepteur de radiocommunication mettant en oeuvre un tel procede

Publications (1)

Publication Number Publication Date
BR9914478A true BR9914478A (pt) 2001-06-26

Family

ID=26234529

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9914478-6A BR9914478A (pt) 1998-09-04 1999-09-02 Processo de equalização numérica, e receptor de radiocomunicação que utiliza esse processo

Country Status (9)

Country Link
US (1) US6850562B1 (pt)
EP (1) EP1110358B1 (pt)
JP (1) JP2002524978A (pt)
CN (1) CN1321384A (pt)
BR (1) BR9914478A (pt)
CA (1) CA2341589A1 (pt)
DE (1) DE69904733T2 (pt)
FR (1) FR2783120B1 (pt)
WO (1) WO2000014936A1 (pt)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6608862B1 (en) * 1999-08-20 2003-08-19 Ericsson, Inc. Method and apparatus for computing prefilter coefficients
WO2007091779A1 (en) 2006-02-10 2007-08-16 Lg Electronics Inc. Digital broadcasting receiver and method of processing data
WO2007126196A1 (en) 2006-04-29 2007-11-08 Lg Electronics Inc. Digital broadcasting system and method of processing data
WO2007136166A1 (en) 2006-05-23 2007-11-29 Lg Electronics Inc. Digital broadcasting system and method of processing data
US7873104B2 (en) 2006-10-12 2011-01-18 Lg Electronics Inc. Digital television transmitting system and receiving system and method of processing broadcasting data
KR101253185B1 (ko) 2007-03-26 2013-04-10 엘지전자 주식회사 디지털 방송 시스템 및 데이터 처리 방법
KR101285887B1 (ko) 2007-03-26 2013-07-11 엘지전자 주식회사 디지털 방송 시스템 및 데이터 처리 방법
KR101285888B1 (ko) 2007-03-30 2013-07-11 엘지전자 주식회사 디지털 방송 시스템 및 데이터 처리 방법
US8433973B2 (en) * 2007-07-04 2013-04-30 Lg Electronics Inc. Digital broadcasting system and method of processing data
WO2009005326A2 (en) 2007-07-04 2009-01-08 Lg Electronics Inc. Digital broadcasting system and method of processing data
KR20090012180A (ko) * 2007-07-28 2009-02-02 엘지전자 주식회사 디지털 방송 시스템 및 데이터 처리 방법
US8099654B2 (en) 2007-08-24 2012-01-17 Lg Electronics Inc. Digital broadcasting system and method of processing data in the digital broadcasting system
WO2019148139A1 (en) * 2018-01-26 2019-08-01 California Institute Of Technology Systems and methods for communicating by modulating data on zeros
US10804982B2 (en) * 2019-02-07 2020-10-13 California Institute Of Technology Systems and methods for communicating by modulating data on zeros in the presence of channel impairments

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2087198B (en) * 1980-10-28 1985-02-27 Plessey Co Ltd Data decoding
GB8308843D0 (en) * 1983-03-30 1983-05-11 Clark A P Apparatus for adjusting receivers of data transmission channels
GB2247812B (en) * 1990-09-06 1994-08-31 Motorola Inc Equalizer for linear modulated signal
US5533063A (en) * 1994-01-31 1996-07-02 The Regents Of The University Of California Method and apparatus for multipath channel shaping
US6608862B1 (en) * 1999-08-20 2003-08-19 Ericsson, Inc. Method and apparatus for computing prefilter coefficients

Also Published As

Publication number Publication date
CN1321384A (zh) 2001-11-07
DE69904733T2 (de) 2003-11-06
FR2783120B1 (fr) 2000-11-24
EP1110358B1 (fr) 2003-01-02
JP2002524978A (ja) 2002-08-06
US6850562B1 (en) 2005-02-01
FR2783120A1 (fr) 2000-03-10
DE69904733D1 (de) 2003-02-06
EP1110358A1 (fr) 2001-06-27
WO2000014936A1 (fr) 2000-03-16
CA2341589A1 (fr) 2000-03-16

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Legal Events

Date Code Title Description
FA10 Dismissal: dismissal - article 33 of industrial property law
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]