ES2159540T3 - Receptor, con multiplexor de division ortogonal de frecuencia, con compensacion para retardos diferenciales. - Google Patents

Receptor, con multiplexor de division ortogonal de frecuencia, con compensacion para retardos diferenciales.

Info

Publication number
ES2159540T3
ES2159540T3 ES94200270T ES94200270T ES2159540T3 ES 2159540 T3 ES2159540 T3 ES 2159540T3 ES 94200270 T ES94200270 T ES 94200270T ES 94200270 T ES94200270 T ES 94200270T ES 2159540 T3 ES2159540 T3 ES 2159540T3
Authority
ES
Spain
Prior art keywords
receiver
transmission
signs
modulation
detection device
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
ES94200270T
Other languages
English (en)
Inventor
Constant Paul Marie Joz Baggen
Arie Geert Cornelis Koppelaar
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
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 Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Application granted granted Critical
Publication of ES2159540T3 publication Critical patent/ES2159540T3/es
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
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • H04L27/2653—Demodulators with direct demodulation of individual subcarriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/01—Equalisers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2646—Arrangements specific to the transmitter only using feedback from receiver for adjusting OFDM transmission parameters, e.g. transmission timing or guard interval length
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Television Systems (AREA)
  • Noise Elimination (AREA)
  • Dc Digital Transmission (AREA)

Abstract

RECEPTOR PARA RECIBIR UNA SEÑAL DE TRANSMISION QUE COMPRENDE PORTADORAS MODULADAS DE DATOS MULTIPLEXADOS DE FRECUENCIA N, QUE TIENE UNA BUENA COMPRENDIDA ENTRE LA RECEPCION INTENSIVIDAD A MULTITRAYECTORIA Y COMPLEJIDAD DE RECEPTOR U QUE PUEDE PERMITIR UNA REDUCCION EN LA BANDA ANCHA DE TRANSMISION Y POTENCIA DE TRANSMISOR. EN TAL MODULACION RECEPTORA LAS SEÑALES DE LAS PORTADORAS SE SUMINISTRAN POR UN DEMODULADOR MULTIPLEX DE FRECUENCIA A UN DISPOSITIVO DE DETECCION DE SIMBOLO POR UN DISPOSITIVO ECUALIZADOR. EL DISPOSITIVO ECUALIZADOR COMPENSA LA DISTORSION EN LAS SEÑALES DE MODULACION SUMINISTRADOS A ESTE, DE MANERA QUE TAL DISPOSITIVO DE DETECCION DE SIMBOLO PUEDE DETECTAR LOS DATOS TRANSMITIDOS CON PROBABILIDAD DE ERROR REDUCIDA. CUANDO LA SEÑAL DE TRANSMISION ALCANCE EL RECEPTOR CON TIEMPOS DE RETARDO DIFERENTES, ESTA DISTORSION ES PRINCIPALMENTE UN TIPO DE DIAFONIA ENTRE LA MODULACION DE PORTADORAS ADYACENTES. CON LO QUE LA COMPENSACION SUSTANCIAL SE LLEVA A CABO COMBINANDO LA SEÑAL DEMODULACION DE UNA PORTADORA CON SEÑALES REPRESENTATIVAS DE LOS DATOS DE LAS PORTADORAS ADYACENTES. EN EL RECEPTOR ESTAS SEÑALES PUEDEN OBTENERSE A PARTIR DE LA TRAYECTORIA DE SEÑAL MULTIPLEX ENTRE LA SALIDA DE DEMODULADOR MULTIPLEX DE FRECUENCIA Y EL DISPOSITIVO DE DETECCION DE SIMBOLO.
ES94200270T 1993-02-08 1994-02-02 Receptor, con multiplexor de division ortogonal de frecuencia, con compensacion para retardos diferenciales. Expired - Lifetime ES2159540T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93200346 1993-02-08

Publications (1)

Publication Number Publication Date
ES2159540T3 true ES2159540T3 (es) 2001-10-16

Family

ID=8213622

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94200270T Expired - Lifetime ES2159540T3 (es) 1993-02-08 1994-02-02 Receptor, con multiplexor de division ortogonal de frecuencia, con compensacion para retardos diferenciales.

Country Status (5)

Country Link
US (1) US5483529A (es)
JP (1) JP3392501B2 (es)
KR (1) KR100318142B1 (es)
DE (1) DE69427415T2 (es)
ES (1) ES2159540T3 (es)

Families Citing this family (81)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5627863A (en) * 1994-07-15 1997-05-06 Amati Communications Corporation Frame synchronization in multicarrier transmission systems
US6334219B1 (en) 1994-09-26 2001-12-25 Adc Telecommunications Inc. Channel selection for a hybrid fiber coax network
JPH09509819A (ja) * 1994-12-23 1997-09-30 フィリップス エレクトロニクス ネムローゼ フェンノートシャップ 一つのメモリのインタリーブ解除及び緩衝
USRE42236E1 (en) 1995-02-06 2011-03-22 Adc Telecommunications, Inc. Multiuse subcarriers in multipoint-to-point communication using orthogonal frequency division multiplexing
US7280564B1 (en) 1995-02-06 2007-10-09 Adc Telecommunications, Inc. Synchronization techniques in multipoint-to-point communication using orthgonal frequency division multiplexing
US5642382A (en) * 1995-03-01 1997-06-24 Hitachi America, Ltd. Fir filters with multiplexed inputs suitable for use in reconfigurable adaptive equalizers
FR2733869B1 (fr) * 1995-05-02 1997-07-18 France Telecom Signal multiporteuse, procede de construction d'un tel signal et procedes d'emission et de reception correspondants
GB2304504A (en) * 1995-08-19 1997-03-19 Northern Telecom Ltd OFDM receiver includes digital filter
GB9521739D0 (en) * 1995-10-24 1996-01-03 Nat Transcommunications Ltd Decoding carriers encoded using orthogonal frequency division multiplexing
US5764690A (en) * 1996-06-04 1998-06-09 Motorola, Inc. Apparatus for despreading and demodulating a burst CDMA signal
US6757913B2 (en) 1996-07-15 2004-06-29 Gregory D. Knox Wireless music and data transceiver system
US6950388B2 (en) * 1996-08-22 2005-09-27 Tellabs Operations, Inc. Apparatus and method for symbol alignment in a multi-point OFDM/DMT digital communications system
US6118758A (en) * 1996-08-22 2000-09-12 Tellabs Operations, Inc. Multi-point OFDM/DMT digital communications system including remote service unit with improved transmitter architecture
US6771590B1 (en) 1996-08-22 2004-08-03 Tellabs Operations, Inc. Communication system clock synchronization techniques
US5790514A (en) * 1996-08-22 1998-08-04 Tellabs Operations, Inc. Multi-point OFDM/DMT digital communications system including remote service unit with improved receiver architecture
US5995483A (en) * 1996-08-22 1999-11-30 Tellabs Operations, Inc. Apparatus and method for upstream clock synchronization in a multi-point OFDM/DMT digital communication system
FR2754125B1 (fr) * 1996-09-30 2004-07-09 Sc Reprosol Dispositif et procede d'egalisation vectorielle d'un signal ofdm
JPH10257013A (ja) * 1997-03-14 1998-09-25 Toshiba Corp 受信装置
US6353629B1 (en) * 1997-05-12 2002-03-05 Texas Instruments Incorporated Poly-path time domain equalization
DE59807975D1 (de) * 1997-06-20 2003-05-22 Infineon Technologies Ag Datenübertragungsverfahren mit einer mehrzahl von nicht-äquidistanten frequenzbändern
US6647057B1 (en) 1997-11-03 2003-11-11 International Communications Products, Inc. Link adapter interface for upgrading existing satellite communication system for enhanced modulation and coding
US6362784B1 (en) 1998-03-31 2002-03-26 Matsuda Electric Industrial Co., Ltd. Antenna unit and digital television receiver
DK1068704T3 (da) 1998-04-03 2012-09-17 Tellabs Operations Inc Filter til impulssvarforkortning, med yderligere spektrale begrænsninger, til multibærebølgeoverførsel
US6631175B2 (en) * 1998-04-03 2003-10-07 Tellabs Operations, Inc. Spectrally constrained impulse shortening filter for a discrete multi-tone receiver
US7440498B2 (en) * 2002-12-17 2008-10-21 Tellabs Operations, Inc. Time domain equalization for discrete multi-tone systems
FR2777407B1 (fr) * 1998-04-10 2000-06-30 Wavecom Sa Signal de radiotelephonie cellulaire a canal supplementaire affecte au sens descendant, procede, systeme, mobile et station de base correspondant
US6795424B1 (en) * 1998-06-30 2004-09-21 Tellabs Operations, Inc. Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systems
US6639555B1 (en) 1998-07-02 2003-10-28 Matsushita Electric Industrial Co., Ltd. Antenna unit, communication system and digital television receiver
DE19934660C2 (de) * 1998-09-02 2000-08-31 Daimler Chrysler Ag Mehrfrequenz-Superpositions-Empfänger
US6278685B1 (en) 1999-08-19 2001-08-21 Intellon Corporation Robust transmission mode
JP2001177326A (ja) 1999-10-08 2001-06-29 Matsushita Electric Ind Co Ltd アンテナ装置、通信システム
US7284064B1 (en) * 2000-03-21 2007-10-16 Intel Corporation Method and apparatus to determine broadcast content and scheduling in a broadcast system
US6529868B1 (en) * 2000-03-28 2003-03-04 Tellabs Operations, Inc. Communication system noise cancellation power signal calculation techniques
US6289000B1 (en) 2000-05-19 2001-09-11 Intellon Corporation Frame control encoder/decoder for robust OFDM frame transmissions
US20020067772A1 (en) * 2000-06-28 2002-06-06 Shepperd Michael B. Method and system for sending information over metal wire
US7469297B1 (en) 2000-08-04 2008-12-23 Intellon Corporation Mechanism for using a quasi-addressed response to bind to a message requesting the response
US7298691B1 (en) 2000-08-04 2007-11-20 Intellon Corporation Method and protocol to adapt each unique connection in a multi-node network to a maximum data rate
US6907044B1 (en) 2000-08-04 2005-06-14 Intellon Corporation Method and protocol to support contention-free intervals and QoS in a CSMA network
US7352770B1 (en) * 2000-08-04 2008-04-01 Intellon Corporation Media access control protocol with priority and contention-free intervals
US6987770B1 (en) 2000-08-04 2006-01-17 Intellon Corporation Frame forwarding in an adaptive network
US6909723B1 (en) 2000-08-04 2005-06-21 Intellon Corporation Segment bursting with priority pre-emption and reduced latency
US7275254B1 (en) 2000-11-21 2007-09-25 Intel Corporation Method and apparatus for determining and displaying the service level of a digital television broadcast signal
US20020143591A1 (en) * 2001-03-30 2002-10-03 Connelly Jay H. Method and apparatus for a hybrid content on demand broadcast system
US7185352B2 (en) * 2001-05-11 2007-02-27 Intel Corporation Method and apparatus for combining broadcast schedules and content on a digital broadcast-enabled client platform
US20030005465A1 (en) * 2001-06-15 2003-01-02 Connelly Jay H. Method and apparatus to send feedback from clients to a server in a content distribution broadcast system
US20020194603A1 (en) * 2001-06-15 2002-12-19 Jay H. Connelly Method and apparatus to distribute content using a multi-stage broadcast system
US20030005451A1 (en) * 2001-06-15 2003-01-02 Connelly Jay H. Method and apparatus to distribute content descriptors in a content distribution broadcast system
US7047456B2 (en) * 2001-08-28 2006-05-16 Intel Corporation Error correction for regional and dynamic factors in communications
US20030061611A1 (en) * 2001-09-26 2003-03-27 Ramesh Pendakur Notifying users of available content and content reception based on user profiles
US8943540B2 (en) * 2001-09-28 2015-01-27 Intel Corporation Method and apparatus to provide a personalized channel
US20030066090A1 (en) * 2001-09-28 2003-04-03 Brendan Traw Method and apparatus to provide a personalized channel
US7209433B2 (en) * 2002-01-07 2007-04-24 Hitachi, Ltd. Channel estimation and compensation techniques for use in frequency division multiplexed systems
WO2003098854A1 (en) * 2002-05-15 2003-11-27 Thomson Licensing S.A. Ofdm equalizer filter with shared multiplier
US7173991B2 (en) 2002-06-17 2007-02-06 Hitachi, Ltd. Methods and apparatus for spectral filtering channel estimates
US7826466B2 (en) * 2002-06-26 2010-11-02 Atheros Communications, Inc. Communication buffer scheme optimized for VoIP, QoS and data networking over a power line
US7120847B2 (en) * 2002-06-26 2006-10-10 Intellon Corporation Powerline network flood control restriction
US8149703B2 (en) * 2002-06-26 2012-04-03 Qualcomm Atheros, Inc. Powerline network bridging congestion control
US7139340B2 (en) * 2002-06-28 2006-11-21 Hitachi, Ltd. Robust OFDM carrier recovery methods and apparatus
EP1554848A4 (en) 2002-10-21 2010-03-03 Intellon Corp CONSTRUCTIVE ACCESS INTERVALS IN A CSMA NETWORK
US7281187B2 (en) 2003-11-20 2007-10-09 Intellon Corporation Using error checking bits to communicated an address or other bits
US8090857B2 (en) 2003-11-24 2012-01-03 Qualcomm Atheros, Inc. Medium access control layer that encapsulates data from a plurality of received data units into a plurality of independently transmittable blocks
WO2005074164A1 (en) * 2004-01-28 2005-08-11 Koninklijke Philips Electronics N.V. Diversity system for transmitting a signal with sub-carriers
US7660327B2 (en) * 2004-02-03 2010-02-09 Atheros Communications, Inc. Temporary priority promotion for network communications in which access to a shared medium depends on a priority level
US7321550B2 (en) * 2004-02-17 2008-01-22 Industrial Technology Research Institute Method of equalization in an OFDM system
US7715425B2 (en) * 2004-02-26 2010-05-11 Atheros Communications, Inc. Channel adaptation synchronized to periodically varying channel
US8041233B2 (en) * 2004-07-14 2011-10-18 Fundación Tarpuy Adaptive equalization in coherent fiber optic communication
US7580454B2 (en) 2004-07-14 2009-08-25 Fundacion Tarpuy Multidimensional decision-directed trained adaptive equalization
US7636370B2 (en) * 2005-03-03 2009-12-22 Intellon Corporation Reserving time periods for communication on power line networks
RU2294051C2 (ru) * 2005-05-03 2007-02-20 Государственное образовательное учреждение высшего профессионального образования Военный институт радиоэлектроники Способ многочастотной модуляции амплитуды и фазы сигналов и устройство его реализации
US8175190B2 (en) * 2005-07-27 2012-05-08 Qualcomm Atheros, Inc. Managing spectra of modulated signals in a communication network
RU2291553C1 (ru) * 2005-07-27 2007-01-10 Государственное образовательное учреждение высшего профессионального образования Военный институт радиоэлектроники Устройство модуляции амплитуды и фазы многочастотных сигналов
US7822059B2 (en) 2005-07-27 2010-10-26 Atheros Communications, Inc. Managing contention-free time allocations in a network
FR2891674B1 (fr) * 2005-09-30 2007-12-21 Radiotelephone Sfr Procede et systeme de planification automatique de retards des temps d'emission des emetteurs d'un reseau de diffusion synchrone en temps et en frequence
RU2310975C2 (ru) * 2005-10-31 2007-11-20 Государственное образовательное учреждение высшего профессионального образования Военный институт радиоэлектроники Устройство модуляции амплитуды и фазы многочастотных сигналов
KR101484798B1 (ko) 2007-05-10 2015-01-28 퀄컴 인코포레이티드 공유 매체에의 분산형 액세스의 관리
CN102113283B (zh) * 2008-06-03 2014-09-03 汤姆森特许公司 确定信号格式的装置和方法
JP5678171B2 (ja) 2010-04-12 2015-02-25 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ ネットワークにおける低オーバーヘッド通信のためのチャネル推定
US8862957B2 (en) * 2012-07-27 2014-10-14 Lsi Corporation Symbol selective scaling with parity forcing
US8891605B2 (en) 2013-03-13 2014-11-18 Qualcomm Incorporated Variable line cycle adaptation for powerline communications
FR3056368B1 (fr) * 2016-09-21 2018-09-28 Commissariat A L'energie Atomique Et Aux Energies Alternatives Emetteur ofdm a filtrage par blocs et systeme d'emission/reception correspondant
CN110261821B (zh) * 2019-07-18 2021-12-10 中电科思仪科技股份有限公司 一种基于信息解调相关的时差估计方法及装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4785447A (en) * 1987-02-17 1988-11-15 Nec Corporation FDM demultiplexer using oversampled digital filters
US5191576A (en) * 1988-11-18 1993-03-02 L'Etat Francais and Telediffusion de France S.A. Method for broadcasting of digital data, notably for radio broadcasting at high throughput rate towards mobile receivers, with time frequency interlacing and analog synchronization
FR2658017B1 (fr) * 1990-02-06 1992-06-05 France Etat Procede de diffusion de donnees numeriques, notamment pour la radiodiffusion a haut debit vers des mobiles, a entrelacement temps-frequence et aide a l'acquisition de la commande automatique de frequence, et recepteur correspondant.
JP2822270B2 (ja) * 1990-07-03 1998-11-11 ソニー株式会社 波形歪みの除去回路
JPH0477180A (ja) * 1990-07-17 1992-03-11 Nec Corp ゴースト除去回路
US5321512A (en) * 1993-05-07 1994-06-14 Zoran Corporation Ghost signal cancellation system using feedforward and feedback filters for television signals

Also Published As

Publication number Publication date
US5483529A (en) 1996-01-09
DE69427415D1 (de) 2001-07-19
JPH06261019A (ja) 1994-09-16
KR100318142B1 (ko) 2002-03-20
KR940020799A (ko) 1994-09-16
DE69427415T2 (de) 2002-05-29
JP3392501B2 (ja) 2003-03-31

Similar Documents

Publication Publication Date Title
US6424444B1 (en) Transmission and reception of duobinary multilevel pulse-amplitude-modulated optical signals using finite-state machine-based encoder
US7327961B2 (en) Differential encoder for an optical DQPSK modulator
US8611751B2 (en) System, apparatus and method for communicating data via polarization multiplexing
KR940020799A (ko) 수신기(Receiver)
US7555061B2 (en) Optical communication device
NO990770D0 (no) Multi-bµrer transmisjonssystem, mottaker, transceiver og fremgangsmÕte for samme
WO1996042160A3 (en) Transmission system using transmitter with phase modulator and frequency multiplier
US20080013964A1 (en) Optical reception apparatus
US9048953B2 (en) Optical communication system, optical transmitter, and transponder
WO2002061978A1 (en) Transmission and reception of duobinary pam optical signal
EP2157711A1 (en) Optical transmission system, apparatus and method
KR880004656A (ko) 멀티 유저 통신 시스템
US20140044439A1 (en) Method and apparatus for transmission of two modulated signals via an optical channel
JP2000059300A (ja) 光送受信装置
SE8502773D0 (sv) Televisionsoverforingssystem
AR018999A1 (es) Un metodo de transmision optica a alta velocidad, transmisor de impulsos a alta velocidad y disposicion para llevar a la practica dicho metodo
JP4730560B2 (ja) 光伝送システム、光伝送方法及び光送信装置
JPH0746187A (ja) 光通信方式
US4006416A (en) Digital communication system
JP4148036B2 (ja) 光時分割多重送信装置
GB2302484A (en) Transmitting channel identification in an optical TDM transmission system
US7433603B2 (en) Using active and passive optical components for an optical network
NO924535L (no) Radiotestsloeyfe for en radiotransceiver
Sangsiri et al. Bit synchronization using subcarriers for control signaling
Gross et al. Optical DQPSK video system with heterodyne detection

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 613266

Country of ref document: ES