BR0101198A - Processo concorrente para desconvolução autodidata de sinais digitais - Google Patents

Processo concorrente para desconvolução autodidata de sinais digitais

Info

Publication number
BR0101198A
BR0101198A BR0101198-7A BR0101198A BR0101198A BR 0101198 A BR0101198 A BR 0101198A BR 0101198 A BR0101198 A BR 0101198A BR 0101198 A BR0101198 A BR 0101198A
Authority
BR
Brazil
Prior art keywords
systems
digital
self
overlap
taught
Prior art date
Application number
BR0101198-7A
Other languages
English (en)
Other versions
BRPI0101198B1 (pt
Inventor
Maria Cristina Felippet Castro
Cesar Comparsi De Castro
Dalton Soares Arantes
Original Assignee
Ubea
Unicamp
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 Ubea, Unicamp filed Critical Ubea
Priority to BRPI0101198-7A priority Critical patent/BRPI0101198B1/pt
Priority to KR1020037011498A priority patent/KR100567081B1/ko
Priority to JP2002570403A priority patent/JP4451597B2/ja
Priority to PCT/BR2002/000030 priority patent/WO2002071607A1/en
Priority to CNB028058364A priority patent/CN100544196C/zh
Priority to EP02703403A priority patent/EP1419575A4/en
Priority to US10/469,628 priority patent/US20040076249A1/en
Publication of BR0101198A publication Critical patent/BR0101198A/pt
Priority to US11/622,869 priority patent/US7433400B2/en
Publication of BRPI0101198B1 publication Critical patent/BRPI0101198B1/pt

Links

Classifications

    • 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
    • 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
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • 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
    • 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
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03057—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure
    • H04L25/0307—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure using blind adaptation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

"PROCESSO CONCORRENTE PARA DESCONVOLUçãO AUTODIDATA DE SINAIS DIGITAIS". O processo tem o objetivo de eliminar o problema de interferência intersimbólica em sinais digitais, problema este decorrente do efeito dispersivo de qualquer canal de transmissão prático. A solução para o problema de superposição de raios de propagação e sua variação dinâmica no canal de transmissão de um sistema digital será um dos maiores desafios para o avanço tecnológico desta área nos próximos anos. Em comunicações móveis esse fenómeno indesejado é caracterizado pelos parâmetros de delay spread, angle spread e Doppler spread, os quais determinam o nível e a dinâmica de superposição entre os símbolos do sistema, superposição esta que ocorre como conseq³ência da transmissão da informação através do canal, sendo que os aparelhos passíveis de terem a sua performance melhorada pelo uso do Processo Concorrente para Desconvolução Autodidata de Sinais Digitais inclui, mas não esgota: Processamento Espaço-Temporal (utilizado, por exemplo, em Antenas Inteligentes; Sensores Inteligentes, etc...), Sistemas de telecomunicações digitais em geral (telefonia celular, televisão digital, rádio digital, etc...); sistemas de telemetria, sistemas de sensoriamento remoto, sistemas de localização/medição geodésica (GPS, etc..), sistemas de auxílio à navegação, sistemas de prospecção sísmica por reflexão/refração de ondas, sistemas de armazenamento em meio magnético, sistemas de RADAR, sistemas de SONAR.
BRPI0101198-7A 2001-03-02 2001-03-02 Processo concorrente para desconvolução autodidata de sinais digitais BRPI0101198B1 (pt)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BRPI0101198-7A BRPI0101198B1 (pt) 2001-03-02 2001-03-02 Processo concorrente para desconvolução autodidata de sinais digitais
KR1020037011498A KR100567081B1 (ko) 2001-03-02 2002-03-01 디지털 신호의 블라인드 디콘볼루션에 대한 시스템 및 병행 프로세스
JP2002570403A JP4451597B2 (ja) 2001-03-02 2002-03-01 デジタル信号のブラインドデコンボリューションのためのコンカレントプロセス及びその方法
PCT/BR2002/000030 WO2002071607A1 (en) 2001-03-02 2002-03-01 Concurrent process for blind deconvolution of digital signals
CNB028058364A CN100544196C (zh) 2001-03-02 2002-03-01 数字信号盲解去卷积的同步处理方法及其系统
EP02703403A EP1419575A4 (en) 2001-03-02 2002-03-01 AT THE SAME TIME PROCESS FOR BLIND FOLDING OF DIGITAL SIGNALS
US10/469,628 US20040076249A1 (en) 2001-03-02 2002-03-02 Concurrent process for blind deconvolution of digital signals
US11/622,869 US7433400B2 (en) 2001-03-02 2007-01-12 Concurrent process for blind deconvolution of digital signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BRPI0101198-7A BRPI0101198B1 (pt) 2001-03-02 2001-03-02 Processo concorrente para desconvolução autodidata de sinais digitais

Publications (2)

Publication Number Publication Date
BR0101198A true BR0101198A (pt) 2003-01-28
BRPI0101198B1 BRPI0101198B1 (pt) 2015-09-01

Family

ID=3946973

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0101198-7A BRPI0101198B1 (pt) 2001-03-02 2001-03-02 Processo concorrente para desconvolução autodidata de sinais digitais

Country Status (7)

Country Link
US (2) US20040076249A1 (pt)
EP (1) EP1419575A4 (pt)
JP (1) JP4451597B2 (pt)
KR (1) KR100567081B1 (pt)
CN (1) CN100544196C (pt)
BR (1) BRPI0101198B1 (pt)
WO (1) WO2002071607A1 (pt)

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US7139067B2 (en) 2003-09-12 2006-11-21 Textron Systems Corporation Three-dimensional imaging with multiframe blind deconvolution
CN1303769C (zh) * 2004-01-29 2007-03-07 威盛电子股份有限公司 更新决定反馈均衡器参数的方法
US8045651B2 (en) * 2004-08-20 2011-10-25 Broadcom Corporation Method and system for redundancy-based decoding in 8-PSK GSM systems
FR2882479B1 (fr) * 2005-02-22 2007-04-20 Thales Sa Procede et dispositif de synchronisation de liaisons rectilignes ou quasi-rectilignes en presence d'interferences
CN101109794B (zh) * 2007-07-26 2010-12-15 北京航空航天大学 一种兼容gnss信号处理算法的测试平台
US8606316B2 (en) * 2009-10-21 2013-12-10 Xerox Corporation Portable blind aid device
FR2955396B1 (fr) 2010-01-15 2013-03-01 Cggveritas Services Sa Dispositif de traitement de donnees sismiques marines
FR2955397B1 (fr) 2010-01-15 2012-03-02 Cggveritas Services Sa Procede et dispositif d'acquisition de donnees sismiques marines
AU2014201114B2 (en) * 2010-06-10 2014-07-31 Cggveritas Services Sa Method and apparatus for deghosting seismic data
FR2961316A1 (fr) * 2010-06-10 2011-12-16 Cggveritas Services Sa Procede de traitement de donnees sismiques marines
US8611410B2 (en) * 2010-07-30 2013-12-17 National Instruments Corporation Variable modulus mechanism for performing equalization without a priori knowledge of modulation type or constellation order
US9448317B2 (en) * 2010-08-19 2016-09-20 Pgs Geophysical As Method for swell noise detection and attenuation in marine seismic surveys
US9124780B2 (en) 2010-09-17 2015-09-01 Certusview Technologies, Llc Methods and apparatus for tracking motion and/or orientation of a marking device
AU2011232767B2 (en) 2010-10-14 2014-05-08 Cggveritas Services Sa Method and device to acquire seismic data
CN102035496B (zh) * 2010-10-27 2012-11-21 武汉烽火富华电气有限责任公司 一种声表面波无源无线阵列的阵元识别方法
US8913901B2 (en) * 2012-02-20 2014-12-16 Tyco Electronics Subsea Communications Llc System and method for blind equalization and carrier phase recovery in a quadrature amplitude modulated system
BR102012009581B1 (pt) * 2012-04-24 2022-05-31 Universidade Estadual De Campinas-Unicamp Processo de retropropagação concorrente suave para equalização temporal em sistemas ofdm
WO2015077514A1 (en) * 2013-11-20 2015-05-28 Certusview Technologies, Llc Systems, methods, and apparatus for tracking an object
CN104809706B (zh) * 2015-05-05 2016-08-17 中国人民解放军国防科学技术大学 一种基于图像颜色平缓变化先验的单透镜计算成像方法
US10069653B1 (en) 2017-05-12 2018-09-04 Seagate Technology Llc Blind partial response equalization

Family Cites Families (9)

* Cited by examiner, † Cited by third party
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IL97345A0 (en) * 1991-02-24 1992-05-25 Univ Ramot Method and apparatus for blind deconvolution
US5461640A (en) * 1994-06-03 1995-10-24 Texas Instruments Incorporated Method and system for optimizing an equalizer in a data transmission system
FR2722631B1 (fr) * 1994-07-13 1996-09-20 France Telecom Etablissement P Procede et systeme de filtrage adaptatif par egalisation aveugle d'un signal telephonique numerique et leurs applications
FR2738967B1 (fr) * 1995-09-15 1997-12-05 France Telecom Dispositif d'egalisation adaptatif pour systemes de communications numeriques
US5999567A (en) * 1996-10-31 1999-12-07 Motorola, Inc. Method for recovering a source signal from a composite signal and apparatus therefor
US6075816A (en) * 1996-11-27 2000-06-13 Lucent Technologies, Inc. Windowing technique for blind equalization
FR2766604B1 (fr) * 1997-07-22 1999-10-01 France Telecom Procede et dispositif d'egalisation aveugle des effets d'un canal de transmission sur un signal de parole numerique
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Also Published As

Publication number Publication date
KR100567081B1 (ko) 2006-03-31
US20070189374A1 (en) 2007-08-16
EP1419575A1 (en) 2004-05-19
KR20030086600A (ko) 2003-11-10
JP2004530326A (ja) 2004-09-30
JP4451597B2 (ja) 2010-04-14
CN100544196C (zh) 2009-09-23
WO2002071607A1 (en) 2002-09-12
CN1494764A (zh) 2004-05-05
US20040076249A1 (en) 2004-04-22
BRPI0101198B1 (pt) 2015-09-01
EP1419575A4 (en) 2007-01-31
US7433400B2 (en) 2008-10-07

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