ATE398375T1 - Eine fensterungsfunktion zur erhaltung von orthogonalität beim empfang von ofdm-symbolen - Google Patents

Eine fensterungsfunktion zur erhaltung von orthogonalität beim empfang von ofdm-symbolen

Info

Publication number
ATE398375T1
ATE398375T1 AT00926328T AT00926328T ATE398375T1 AT E398375 T1 ATE398375 T1 AT E398375T1 AT 00926328 T AT00926328 T AT 00926328T AT 00926328 T AT00926328 T AT 00926328T AT E398375 T1 ATE398375 T1 AT E398375T1
Authority
AT
Austria
Prior art keywords
sample
windowed
symbol
offset
time
Prior art date
Application number
AT00926328T
Other languages
English (en)
Inventor
Lawrence Yonge
Original Assignee
Intellon 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 Intellon Corp filed Critical Intellon Corp
Application granted granted Critical
Publication of ATE398375T1 publication Critical patent/ATE398375T1/de

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
    • H04L27/2649—Demodulators
    • H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators

Landscapes

  • Signal Processing (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Noise Elimination (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Details Of Aerials (AREA)
  • Radio Transmission System (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Coils Or Transformers For Communication (AREA)
AT00926328T 1999-04-26 2000-04-25 Eine fensterungsfunktion zur erhaltung von orthogonalität beim empfang von ofdm-symbolen ATE398375T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/299,810 US6269132B1 (en) 1999-04-26 1999-04-26 Windowing function for maintaining orthogonality of channels in the reception of OFDM symbols

Publications (1)

Publication Number Publication Date
ATE398375T1 true ATE398375T1 (de) 2008-07-15

Family

ID=23156394

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00926328T ATE398375T1 (de) 1999-04-26 2000-04-25 Eine fensterungsfunktion zur erhaltung von orthogonalität beim empfang von ofdm-symbolen

Country Status (8)

Country Link
US (1) US6269132B1 (de)
EP (1) EP1181797B1 (de)
JP (1) JP4421117B2 (de)
AT (1) ATE398375T1 (de)
AU (1) AU4487400A (de)
CA (1) CA2371748C (de)
DE (1) DE60039167D1 (de)
WO (1) WO2000065792A1 (de)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100442816B1 (ko) * 1998-07-08 2004-09-18 삼성전자주식회사 직교주파수분할다중화(ofdm)수신기 동기화 방법 및 장치
US6760300B1 (en) * 1999-02-17 2004-07-06 Imec High speed wireless OFDM transceiver modem
US6891792B1 (en) * 1999-05-14 2005-05-10 At&T Corp. Method for estimating time and frequency offset in an OFDM system
NZ506558A (en) 2000-08-25 2003-04-29 Ind Res Ltd A broadband indoor communication system using ofdm
NZ509688A (en) 2001-02-01 2003-06-30 Ind Res Ltd Maximum likelihood sychronisation (estimating time delay) for wireless digital communications system using a pilot symbol
US7327794B2 (en) * 2002-06-24 2008-02-05 Intellon Corporation Method and apparatus for detecting a jammed channel in a block oriented digital communication system
EP1554848A4 (de) * 2002-10-21 2010-03-03 Intellon Corp Staufreie zugriffsintervalle in einem csma-netzwerk
US6931076B2 (en) * 2002-12-31 2005-08-16 Intel Corporation Signal detector
US7103111B2 (en) * 2003-06-16 2006-09-05 Motorola, Inc. System and method for generating a spectral efficient root raised cosine (RRC) pulse for increasing spectral efficiency
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
US7684568B2 (en) * 2003-11-24 2010-03-23 Intellon Corporation Encrypting data in a communication network
FR2871314B1 (fr) * 2004-06-07 2006-09-15 Nortel Networks Ltd Procede pour estimer des symboles d'un signal numerique et recepteur pour la mise en oeuvre du procede
WO2006014142A1 (en) * 2004-08-03 2006-02-09 Agency For Science, Technology And Research Method for detecting a signal, detector and computer program product
DE102004044957B4 (de) * 2004-09-16 2007-04-19 Infineon Technologies Ag Medium-Zugriffs-Steuerungs-Einheit, Mobilfunkeinrichtung und Verfahren zum Abbilden mittels einer Mobilfunkeinrichtung zu übertragender Daten
US7668247B2 (en) * 2005-01-14 2010-02-23 Texas Instruments Incorporated Methods and systems for performing an overlap-and-add operation
KR100800692B1 (ko) * 2005-04-11 2008-02-01 삼성전자주식회사 직교 주파수 분할 다중화 시스템의 주파수 오프셋 추정장치 및 방법
US7688904B2 (en) * 2005-05-12 2010-03-30 Intellon Corporation Generating signals for transmission of information
US7590183B2 (en) * 2005-05-12 2009-09-15 Intellon Corporation Generating signals for transmission of information
US7822059B2 (en) 2005-07-27 2010-10-26 Atheros Communications, Inc. Managing contention-free time allocations in a network
US7558294B2 (en) * 2005-07-27 2009-07-07 Intellon Corporation Time synchronization in a network
US7729372B2 (en) 2005-07-27 2010-06-01 Sharp Corporation Communicating in a network that includes a medium having varying transmission characteristics
US8175190B2 (en) 2005-07-27 2012-05-08 Qualcomm Atheros, Inc. Managing spectra of modulated signals in a communication network
US8098757B2 (en) * 2005-10-21 2012-01-17 Alcatel Lucent Method and apparatus for windowing orthogonal frequency division multiplexed signals
US7733983B2 (en) * 2005-11-14 2010-06-08 Ibiquity Digital Corporation Symbol tracking for AM in-band on-channel radio receivers
JP4695523B2 (ja) * 2006-02-16 2011-06-08 株式会社東芝 信号受信装置、信号受信方法および信号受信プログラム
US7903749B2 (en) * 2006-08-16 2011-03-08 Harris Corporation System and method for applying frequency domain spreading to multi-carrier communications signals
US7860147B2 (en) * 2006-08-16 2010-12-28 Harris Corporation Method of communicating and associated transmitter using coded orthogonal frequency division multiplexing (COFDM)
US7751488B2 (en) * 2006-08-16 2010-07-06 Harris Corporation System and method for communicating data using symbol-based randomized orthogonal frequency division multiplexing (OFDM)
US7813433B2 (en) * 2006-08-16 2010-10-12 Harris Corporation System and method for communicating data using symbol-based randomized orthogonal frequency division multiplexing (OFDM) with selected subcarriers turned on or off
US7649951B2 (en) 2006-08-16 2010-01-19 Harris Corporation System and method for communicating data using symbol-based randomized orthogonal frequency division multiplexing (OFDM) with applied frequency domain spreading
JP4322928B2 (ja) * 2007-02-14 2009-09-02 株式会社東芝 信号受信装置
WO2008141165A1 (en) 2007-05-10 2008-11-20 Intellon Corporation Managing distributed access to a shared medium
US8429406B2 (en) 2007-06-04 2013-04-23 Qualcomm Atheros, Inc. Authorizing customer premise equipment into a network
US8595278B2 (en) * 2009-03-03 2013-11-26 Broadcom Corporation Method and system for unconstrained frequency domain adaptive filtering
CN101599941B (zh) * 2009-04-24 2012-05-30 新邮通信设备有限公司 一种正交频分复用信号的产生方法和装置
US8781016B2 (en) 2010-04-12 2014-07-15 Qualcomm Incorporated Channel estimation for low-overhead communication in a network
CN113391122A (zh) * 2021-06-09 2021-09-14 中电科思仪科技股份有限公司 一种提高频谱监测信道选择性的方法
CN114460362B (zh) * 2022-01-25 2025-12-09 中国船舶集团有限公司第七二四研究所 一种基于三通道欠采样的超宽带数字瞬时测频方法

Family Cites Families (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5917916B2 (ja) 1975-12-26 1984-04-24 日本電気株式会社 イソウドウキソウチ
US4438511A (en) 1980-11-10 1984-03-20 Telebit Corporation Packetized ensemble modem
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
US5357502A (en) 1990-02-06 1994-10-18 France Telecom And Telediffusion De France Sa Device for the reception of digital data time frequency interlacing, notably for radio broadcasting at high bit rate towards mobile receivers with nyquist temporal window
FR2658016B1 (fr) 1990-02-06 1994-01-21 Etat Francais Cnet Procede de diffusion de donnees numeriques, notamment pour la radiodiffusion a haut debit vers des mobiles, a entrelacement temps-frequence et demodulation coherente, et recepteur correspondant.
ATE139660T1 (de) 1990-03-30 1996-07-15 Digi Media Vision Ltd Sendung und empfang bei einer störenden interferenzumgebung
SG44771A1 (en) * 1991-02-28 1997-12-19 Philips Electronics Nv System for broadcasting and receiving digital data receiver and transmitter for use in such system
US5282222A (en) 1992-03-31 1994-01-25 Michel Fattouche Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum
US5555268A (en) 1994-01-24 1996-09-10 Fattouche; Michel Multicode direct sequence spread spectrum
GB9218874D0 (en) 1992-09-07 1992-10-21 British Broadcasting Corp Improvements relating to the transmission of frequency division multiplex signals
US5546429A (en) 1992-11-09 1996-08-13 Motorola, Inc. Frequency hopping code division multiple access radio communication unit
DE69327837T2 (de) 1992-12-01 2000-10-12 Koninklijke Philips Electronics N.V., Eindhoven Teilband-Diversityübertragungssystem
DE69427099T2 (de) 1993-01-20 2001-11-08 Koninklijke Philips Electronics N.V., Eindhoven Übertragungssystem mit Taktrückgewinnung
US5416767A (en) 1993-02-08 1995-05-16 U.S. Philips Corporation Method of transmitting a data stream, transmitter and receiver
SE9302453L (sv) 1993-07-20 1994-10-17 Telia Ab Förfarande och anordning för synkronisering i digitalt transmissionssystem av typen OFDM
JPH0746217A (ja) 1993-07-26 1995-02-14 Sony Corp ディジタル復調装置
JPH0746218A (ja) 1993-07-28 1995-02-14 Sony Corp ディジタル復調装置
US5444697A (en) 1993-08-11 1995-08-22 The University Of British Columbia Method and apparatus for frame synchronization in mobile OFDM data communication
US5596604A (en) 1993-08-17 1997-01-21 Amati Communications Corporation Multicarrier modulation transmission system with variable delay
JP3041175B2 (ja) 1993-11-12 2000-05-15 株式会社東芝 Ｏｆｄｍ同期復調回路
US5450456A (en) * 1993-11-12 1995-09-12 Daimler Benz Ag Method and arrangement for measuring the carrier frequency deviation in a multi-channel transmission system
JP3074103B2 (ja) 1993-11-16 2000-08-07 株式会社東芝 Ｏｆｄｍ同期復調回路
DE69434353T2 (de) 1993-12-22 2006-03-09 Koninklijke Philips Electronics N.V. Mehrträger-Frequenzsprungkommunikationssystem
SE501608C2 (sv) 1994-01-18 1995-03-27 Telia Ab Förfarande och arrangemang för synkronisering vid OFDM- modulering
US5452015A (en) 1994-02-10 1995-09-19 Philips Electronics North America Corporation Method and apparatus for combating co-channel NTSC interference for digital TV transmission
JP2731722B2 (ja) 1994-05-26 1998-03-25 日本電気株式会社 クロック周波数自動制御方式及びそれに用いる送信装置と受信装置
US5627863A (en) 1994-07-15 1997-05-06 Amati Communications Corporation Frame synchronization in multicarrier transmission systems
US5682376A (en) 1994-12-20 1997-10-28 Matsushita Electric Industrial Co., Ltd. Method of transmitting orthogonal frequency division multiplex signal, and transmitter and receiver employed therefor
US5774450A (en) 1995-01-10 1998-06-30 Matsushita Electric Industrial Co., Ltd. Method of transmitting orthogonal frequency division multiplexing signal and receiver thereof
EP2302805B1 (de) 1995-02-01 2012-08-22 Sony Corporation Mehrkanalübertragung mit Verschachtelung durch in-place Adressierung eines RAM-Speichers
JP3130752B2 (ja) 1995-02-24 2001-01-31 株式会社東芝 Ｏｆｄｍ伝送受信方式及び送受信装置
SE514986C2 (sv) 1995-03-01 2001-05-28 Telia Ab Metod och anordning för synkronisering vid OFDM-system
US5636224A (en) 1995-04-28 1997-06-03 Motorola Inc. Method and apparatus for interleave/de-interleave addressing in data communication circuits
US5790516A (en) 1995-07-14 1998-08-04 Telefonaktiebolaget Lm Ericsson Pulse shaping for data transmission in an orthogonal frequency division multiplexed system
US5633896A (en) * 1996-02-21 1997-05-27 Usa Digital Radio Partners, L.P. AM compatible digital waveform demodulation using a dual FFT
US5802117A (en) 1996-02-08 1998-09-01 Philips Electronics North America Corporation Method and apparatus for joint frequency offset and timing estimation of a multicarrier modulation system
KR100186930B1 (ko) 1996-03-13 1999-05-15 (소장)배문한 직교성 주파수 분할 다중화 방식 신호를 이용한초기프레임동기화방법
US5732113A (en) 1996-06-20 1998-03-24 Stanford University Timing and frequency synchronization of OFDM signals
CA2183140C (en) 1996-08-12 2001-11-20 Telecommunications Research Laboratories Ofdm timing and frequency recovery system
US5886749A (en) 1996-12-13 1999-03-23 Cable Television Laboratories, Inc. Demodulation using a time domain guard interval with an overlapped transform
US6074086A (en) * 1999-04-26 2000-06-13 Intellon Corporation Synchronization of OFDM signals with improved windowing

Also Published As

Publication number Publication date
AU4487400A (en) 2000-11-10
JP2002543673A (ja) 2002-12-17
JP4421117B2 (ja) 2010-02-24
WO2000065792A1 (en) 2000-11-02
CA2371748A1 (en) 2000-11-02
EP1181797B1 (de) 2008-06-11
EP1181797A4 (de) 2005-10-26
US6269132B1 (en) 2001-07-31
WO2000065792A8 (en) 2001-04-19
DE60039167D1 (de) 2008-07-24
EP1181797A1 (de) 2002-02-27
CA2371748C (en) 2008-08-05

Similar Documents

Publication Publication Date Title
ATE398375T1 (de) Eine fensterungsfunktion zur erhaltung von orthogonalität beim empfang von ofdm-symbolen
ATE314772T1 (de) Synchronisation von ofdm signalen mit verbesserter fensterfunktion
EP0659001A3 (de) Paralleles Datenübertragungssystem unter Verwendung spezifischer Muster zur Synchronisierung.
DE69714020D1 (de) Rückgewinnung von taxanen aus koniferen
EA200200051A1 (ru) Автоматическое создание штрихового кода для передачи и поиска данных
WO2005022794A3 (en) Combined inverse fast fourier transform and guard interval processing for efficient implementation of ofdm based systems
FI872996A0 (fi) Anordning foer faestande av pappersark.
BRPI0417303A (pt) método de processar um sinal recebido
WO2004077276A3 (en) Fast fourier transform and ofdm receiver
EP1298541A3 (de) System und Methode zur Erzeugung von Web-Seiten basierend auf verarbeiteten Messdaten
BR9813465A (pt) Polissacarìdeos modificados que exibem reconhecimento biológico alterado
TR200000150T2 (tr) Amidlerin elde edilmesine mahsus usul.
ES550323A0 (es) Dispositivo para la transmision de signos mediante palabras de clave de un alfabeto telegrafo,especialmente del alfabetointernacional de telegrafo n 2
BR9908586A (pt) Processo e dispositivo para processamento de dados depositados especificamente para o usuário em diversas memórias de dados de uma instalação técnica
BR9806074A (pt) Método e aperelho para cmea destacado, incluindo uma iteração de cmea precedida e seguida de transformações e empregando uma conferência involuntária
KR960022462A (ko) N-(터셔리-부틸옥시카보닐옥시)말레이미드 및 그 제조방법
McDonald Using journals in the seventh grade reading and language arts classroom
Borchers The relationship between sources of social support and mental adjustment in college students
Gerardi Learning centers in language arts and mathematics for first grade teachers
BR9900456A (pt) Marcação em cartões indutivos ou similares
Morris et al. Woodwind Recital
KR940019854A (ko) 인지질 분해효소 에이 투(phospholipase A_2) 저해물질을 생성하는 미생물
Gracy Teaching elementary students conflict resolution skills through the use of music
Alesi Teacher's [sic] views towards inclusive schooling: a profile of one elementary school
Bidwell An analysis of teacher perceptions toward teaching writing as a process

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties