BR0106718A - Processo para reduzir os efeitos de ruìdo, e, receptor para reduzir os efeitos de ruìdo - Google Patents

Processo para reduzir os efeitos de ruìdo, e, receptor para reduzir os efeitos de ruìdo

Info

Publication number
BR0106718A
BR0106718A BR0106718-4A BR0106718A BR0106718A BR 0106718 A BR0106718 A BR 0106718A BR 0106718 A BR0106718 A BR 0106718A BR 0106718 A BR0106718 A BR 0106718A
Authority
BR
Brazil
Prior art keywords
receiver
noise
signals
signal
effects
Prior art date
Application number
BR0106718-4A
Other languages
English (en)
Inventor
Olli Piirainen
Original Assignee
Nokia 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
Application filed by Nokia Corp filed Critical Nokia Corp
Publication of BR0106718A publication Critical patent/BR0106718A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/12—Neutralising, balancing, or compensation arrangements
    • H04B1/123—Neutralising, balancing, or compensation arrangements using adaptive balancing or compensation means
    • 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
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • 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
    • 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
    • H04L25/03993—Noise whitening
    • 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
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03484—Tapped delay lines time-recursive
    • H04L2025/0349—Tapped delay lines time-recursive as a feedback filter
    • 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
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03605—Block algorithms

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Noise Elimination (AREA)
  • Radio Transmission System (AREA)

Abstract

"PROCESSO PARA REDUZIR OS EFEITOS DE RUìDO, E, RECEPTOR PARA REDUZIR OS EFEITOS DE RUìDO". A invenção é relativa a processo para reduzir os efeitos de ruído e a um receptor que compreende no mínimo um dispositivo de amostragem 12 para formar sinais amostra a partir de um sinal recebido. O receptor também compreende um dispositivo de embranquecimento 30 para converter o ruído nos sinais amostra para ruído branco e filtros digitais 41, 42, 43, 44 para filtrar os sinais amostra que compreendem o ruído branco. O receptor ainda compreende um dispositivo de computação 80 para computar coeficientes de derivação de filtro a partir de um sinal amostra. Ainda mais, o recipiente compreende totalizadores 51, 52 cada um dos quais é arranjado para receber um sinal filtrado a partir de no mínimo um filtro e somar os sinais recebidos a partir dos filtros, para produzir primeiros sinais somados. O receptor também compreende um detetor 60 para somar os primeiros sinais somados para produzir o sinal somado real e para detectar o sinal somado real.
BR0106718-4A 2000-06-09 2001-06-08 Processo para reduzir os efeitos de ruìdo, e, receptor para reduzir os efeitos de ruìdo BR0106718A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20001381A FI114258B (fi) 2000-06-09 2000-06-09 Menetelmä häiriön vaikutuksen vähentämiseksi ja vastaanotin
PCT/FI2001/000547 WO2001095509A1 (en) 2000-06-09 2001-06-08 Method for reducing effects of interference, and receiver

Publications (1)

Publication Number Publication Date
BR0106718A true BR0106718A (pt) 2002-04-16

Family

ID=8558530

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0106718-4A BR0106718A (pt) 2000-06-09 2001-06-08 Processo para reduzir os efeitos de ruìdo, e, receptor para reduzir os efeitos de ruìdo

Country Status (8)

Country Link
US (1) US6721374B2 (pt)
EP (1) EP1287621A1 (pt)
JP (1) JP2003536317A (pt)
CN (1) CN1157857C (pt)
AU (1) AU6610901A (pt)
BR (1) BR0106718A (pt)
FI (1) FI114258B (pt)
WO (1) WO2001095509A1 (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI112739B (fi) 1998-05-25 2003-12-31 Nokia Corp Menetelmä ja laitteisto häiritsevän signaalin havaitsemiseen radiovastaanottimessa
US7933342B2 (en) * 2001-06-15 2011-04-26 Texas Instruments Incorporated Multipath equalization for MIMO multiuser systems
FR2828615B1 (fr) * 2001-08-10 2005-12-02 Thales Sa Procede pour augmenter le debit dans un systeme de communication
CN101088226A (zh) * 2004-12-20 2007-12-12 诺基亚西门子网络公司 无线接收器中的干扰抑制
EP1806889A1 (en) 2006-01-09 2007-07-11 Nokia Corporation Apparatus and method for receiving signals transmitted over a distorting channel
CN100444543C (zh) * 2006-03-31 2008-12-17 东南大学 用于多天线无线通信系统空域滤波检测方法
CN100499611C (zh) * 2006-03-31 2009-06-10 东南大学 无线通信系统空域最大后验概率检测方法
US8995590B2 (en) * 2008-03-28 2015-03-31 Qualcomm Incorporated Hardware engine to demod SIMO, MIMO, and SDMA signals
US8952844B1 (en) * 2011-12-23 2015-02-10 Lockheed Martin Corporation System and method for adaptively matching the frequency response of multiple channels
US9503170B2 (en) 2012-06-04 2016-11-22 Trustees Of Tufts College System, method and apparatus for multi-input multi-output communications over per-transmitter power-constrained channels
CN103684654B (zh) * 2013-12-17 2017-07-28 中电科航空电子有限公司 民航客机客舱内蜂窝移动通信射频信号干扰装置
US10050652B2 (en) * 2014-04-11 2018-08-14 Provenance Asset Group Llc Device and method for enhancing interference rejection by treating separated signal streams as diversity branches

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5481565A (en) * 1993-10-18 1996-01-02 At&T Corp. Method and apparatus for channel equalization
WO1997017692A1 (en) * 1995-11-07 1997-05-15 Euphonics, Incorporated Parametric signal modeling musical synthesizer
US5995561A (en) * 1996-04-10 1999-11-30 Silicon Systems, Inc. Method and apparatus for reducing noise correlation in a partial response channel
JP3654470B2 (ja) * 1996-09-13 2005-06-02 日本電信電話株式会社 サブバンド多チャネル音声通信会議用反響消去方法
US5832095A (en) * 1996-10-18 1998-11-03 Carrier Corporation Noise canceling system
US6320914B1 (en) * 1996-12-18 2001-11-20 Ericsson Inc. Spectrally efficient modulation using overlapped GMSK
US5946351A (en) * 1996-12-27 1999-08-31 At&T Corporation Tap selectable decision feedback equalizer
JP2874679B2 (ja) * 1997-01-29 1999-03-24 日本電気株式会社 雑音消去方法及びその装置
US6272108B1 (en) * 1997-03-05 2001-08-07 Paradyne Corporation Apparatus and method to allow a frame check sequence to determine the updating of adaptive receiver parameters of a high speed communication device
FI103618B (fi) * 1997-07-04 1999-07-30 Nokia Telecommunications Oy Vastaanotetun signaalin tulkitseminen
DE19835760A1 (de) 1997-11-03 1999-05-06 Cit Alcatel Anordnung zur digitalen Nachrichtenübertragung
US6157712A (en) * 1998-02-03 2000-12-05 Telefonaktiebolaget Lm Ericsson Speech immunity enhancement in linear prediction based DTMF detector
EP0939525B1 (en) 1998-02-26 2009-10-07 Italtel s.p.a. Sequence estimation for CPM signals
US6163572A (en) * 1998-04-29 2000-12-19 Nortel Networks Limited Method of reducing coefficient leakage noise introduced to an equalizer during steady state operation
US6091361A (en) * 1998-05-12 2000-07-18 Davis; Dennis W. Method and apparatus for joint space-time array signal processing
US6233273B1 (en) * 1999-06-29 2001-05-15 Intersil Americas Inc. Rake receiver with embedded decision feedback equalizer
US6480610B1 (en) * 1999-09-21 2002-11-12 Sonic Innovations, Inc. Subband acoustic feedback cancellation in hearing aids

Also Published As

Publication number Publication date
AU6610901A (en) 2001-12-17
FI114258B (fi) 2004-09-15
US6721374B2 (en) 2004-04-13
WO2001095509A1 (en) 2001-12-13
FI20001381A0 (fi) 2000-06-09
FI20001381A (fi) 2001-12-10
CN1383620A (zh) 2002-12-04
US20020141518A1 (en) 2002-10-03
EP1287621A1 (en) 2003-03-05
CN1157857C (zh) 2004-07-14
JP2003536317A (ja) 2003-12-02

Similar Documents

Publication Publication Date Title
BR0106718A (pt) Processo para reduzir os efeitos de ruìdo, e, receptor para reduzir os efeitos de ruìdo
EP1185007A3 (en) Method, device, and system for processing optical signals
BR0302087A (pt) Desprojeção digital de documentos
DE602004016380D1 (de) Automatische extraktion von musikteilen eines audiostroms
NL193043B (nl) Inrichting voor digitale fluorografische beeldverbetering.
FR2646104B1 (fr) Systeme cyclonique pour separer des particules de debris a partir de fluides
NO20002281L (no) Seismisk prospektering med konverterte bölger
DE69932626D1 (de) Signalverarbeitungsvorrichtung und verfahren
WO2002093550A3 (de) Vorrichtung zum analysieren eines audiosignals hinsichtlich von rhythmusinformationen unter verwendung einer autokorrelationsfunktion
FR2734637B1 (fr) Dispositif d'inspection optique d'un fluide, notamment pour analyses hematologiques
WO2004011273A3 (de) Verfahren und vorrichtung zur echtheitsprüfung eines sicherheitselements
FR2474331B1 (fr) Dispositif epurateur pour la purification de la pulpe, notamment de cellulose
EP1253730A3 (en) Method and system for optical spectrum analysis with matched filter detection
EP0862060A3 (en) RMS converter using digital filtering
FR2385260A1 (fr) Dispositif de filtrage d'un signal limite en amplitude
FR2443780A1 (fr) Systeme de traitement de signaux video comportant des filtres en peigne
BR9611762A (pt) Filtro digital log-polar para processar um sinal log polar digitalizado e método de processar um sinal log polar digitalizado
EP1248364A3 (de) Vorrichtung und Verfahren zur Erfassung und Unterdrückung von Störungen
SE9602627D0 (sv) Anordning och sätt för analys och filtrering av ljud
WO2008110867A3 (en) Method and device for reducing ringing in a filter output signal
FR2779177B1 (fr) Dispositif d'echappement a filtre a particules
ATE189278T1 (de) Siebvorrichtung
ES2147573T3 (es) Disposicion de circuito para la derivacion de una señal que indica interferencias en una señal multiplex estereo recibida.
FR2815269B1 (fr) Dispositif et installation pour la filtration tangentielle incluant un mode de fonctionnement en retrofiltration
Algazi et al. Recursive low pass filtering of high contrast images

Legal Events

Date Code Title Description
B08F Application fees: application dismissed [chapter 8.6 patent gazette]

Free format text: REFERENTE 10A. ANUIDADE(S).

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2138 DE 27/12/2011.