DE60022330D1 - Dopplerspreizschätzungssystem - Google Patents

Dopplerspreizschätzungssystem

Info

Publication number
DE60022330D1
DE60022330D1 DE60022330T DE60022330T DE60022330D1 DE 60022330 D1 DE60022330 D1 DE 60022330D1 DE 60022330 T DE60022330 T DE 60022330T DE 60022330 T DE60022330 T DE 60022330T DE 60022330 D1 DE60022330 D1 DE 60022330D1
Authority
DE
Germany
Prior art keywords
doppler spread
estimator
digital samples
stationarizer
spectral density
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
DE60022330T
Other languages
English (en)
Inventor
Leonid Krasny
Sandeep Chennakeshu
David Koilpillai
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.)
Ericsson Inc
Original Assignee
Ericsson Inc
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 Ericsson Inc filed Critical Ericsson Inc
Application granted granted Critical
Publication of DE60022330D1 publication Critical patent/DE60022330D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/01—Reducing phase shift
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • 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
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/709—Correlator structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (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)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
DE60022330T 1999-03-22 2000-02-29 Dopplerspreizschätzungssystem Expired - Lifetime DE60022330D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/273,480 US6563861B1 (en) 1999-03-22 1999-03-22 Doppler spread estimation system
PCT/US2000/005129 WO2000057568A1 (en) 1999-03-22 2000-02-29 Doppler spread estimation system

Publications (1)

Publication Number Publication Date
DE60022330D1 true DE60022330D1 (de) 2005-10-06

Family

ID=23044116

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60022330T Expired - Lifetime DE60022330D1 (de) 1999-03-22 2000-02-29 Dopplerspreizschätzungssystem

Country Status (10)

Country Link
US (1) US6563861B1 (de)
EP (1) EP1166455B1 (de)
JP (1) JP4446606B2 (de)
CN (1) CN1169310C (de)
AT (1) ATE303681T1 (de)
AU (1) AU3710500A (de)
DE (1) DE60022330D1 (de)
MY (1) MY124757A (de)
TR (1) TR200102697T2 (de)
WO (1) WO2000057568A1 (de)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6680969B1 (en) * 1999-03-22 2004-01-20 Ericsson, Inc. Methods for estimating doppler spreads including autocorrelation function hypotheses and related systems and receivers
US6931055B1 (en) * 2000-04-18 2005-08-16 Sirf Technology, Inc. Signal detector employing a doppler phase correction system
US6952440B1 (en) * 2000-04-18 2005-10-04 Sirf Technology, Inc. Signal detector employing a Doppler phase correction system
US6788746B1 (en) * 2000-06-26 2004-09-07 Rosemount Aerospace Inc. System and method of determining the frequency of a coherent burst signal
US6832080B1 (en) * 2000-09-12 2004-12-14 Ericsson, Inc. Apparatus for and method of adapting a radio receiver using control functions
US6922452B2 (en) * 2001-03-27 2005-07-26 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for estimating Doppler spread
US7039138B2 (en) 2001-06-05 2006-05-02 Qualcomm Incorporated Method and apparatus for bandwidth estimation
DE60137574D1 (de) * 2001-09-25 2009-03-19 St Microelectronics Nv Verfahren und Vorrichtung zur Geschwindigkeitsschätzung eines Mobilendgerätes insbesondere zellulares Mobiltelefon mit UMTS Fähigkeit
US7218934B2 (en) * 2002-02-14 2007-05-15 Nokia Corporation Mobile station speed estimation
US20030153274A1 (en) * 2002-02-14 2003-08-14 Carsten Juncker Doppler spread estimation
US7054394B2 (en) * 2002-02-18 2006-05-30 Telefonaktiebolaget Lm Ericsson (Publ) Doppler shift and spread estimation method and apparatus
DE60335496D1 (de) * 2003-01-30 2011-02-03 Fujitsu Ltd Fading-frequenzschätzvorrichtung
ATE367024T1 (de) * 2003-04-04 2007-08-15 Mitsubishi Electric Corp Vorentzerrung eines mehrträger-cdma-systems über zeitvariante übertragungskanäle
KR100608109B1 (ko) * 2004-06-28 2006-08-02 삼성전자주식회사 이동통신 시스템에서 도플러 주파수 및 단말기의 이동속도 계산 장치 및 방법
PL1829244T5 (pl) * 2004-12-15 2013-06-28 Ericsson Telefon Ab L M Estymacja dopplerowska
WO2006072864A1 (en) * 2005-01-06 2006-07-13 Koninklijke Philips Electronics N.V. A method and apparatus for estimating doppler spread
JP4297093B2 (ja) * 2005-07-15 2009-07-15 ソニー株式会社 ドップラー周波数算出装置及び方法、並びにｏｆｄｍ復調装置
US8112247B2 (en) * 2006-03-24 2012-02-07 International Business Machines Corporation Resource adaptive spectrum estimation of streaming data
US20080056390A1 (en) * 2006-08-29 2008-03-06 Motorola, Inc. method and system for doppler estimation
US8094605B2 (en) 2007-03-30 2012-01-10 Livetv, Llc Aircraft communications system with network selection controller and associated methods
WO2009079848A1 (fr) * 2007-12-21 2009-07-02 Zte Corporation Procédé pour estimer un étalement de spectre de fréquence et une vitesse d'une station mobile
US20090296799A1 (en) * 2008-03-12 2009-12-03 Raul Alejandro Casas Channel identification, emulation, and frame synchronization for digital television signals
CN101252398B (zh) * 2008-04-03 2012-12-05 北京航空航天大学 具有多普勒模拟功能的扩频信号源
US7970083B2 (en) * 2008-04-04 2011-06-28 Newport Media, Inc. Estimating doppler frequency in ISDB-T systems
KR101629529B1 (ko) * 2008-11-13 2016-06-13 노오텔 네트웍스 리미티드 업링크 수신기에 대한 감소된 복잡도 채널 추정
TWI406539B (zh) * 2009-05-26 2013-08-21 Sunplus Mmobile Inc 都普勒頻率之估測系統及方法
CN103181094B (zh) * 2010-11-04 2016-05-04 瑞典爱立信有限公司 无线电基站以及其中用于估计多普勒扩展的方法
DE102011017473A1 (de) * 2011-04-18 2012-10-18 Continental Automotive Gmbh Verfahren zur Kanalschatzung bei der Fahrzeug-zu-Umgebung- Kommunikation und dazu eingerichtete Kommunikationseinrichtung
US8644181B2 (en) 2011-08-16 2014-02-04 Hong Kong Applied Science and Technology Research Institute Company Limited Method and apparatus for estimation of channel temporal correlation and MIMO mode selection in LTE system
WO2013155482A2 (en) * 2012-04-13 2013-10-17 Apple Inc. Apparatus and methods for adjusting adaptive control loop behavior based on measured artifacts
CN103491046B (zh) * 2013-09-12 2016-06-08 江苏科技大学 水声高速ofdm通信的多普勒扩展处理方法
EP3420641A4 (de) * 2016-02-25 2019-12-11 Cohere Technologies, Inc. Referenzsignalverpackung für drahtlose kommunikation
CN112333757B (zh) * 2020-10-15 2022-11-08 成都市以太节点科技有限公司 一种无线通信测试方法及系统
CN115189785B (zh) * 2021-04-02 2023-10-27 中国移动通信集团终端有限公司 信道的多普勒扩展验证方法、系统及设备

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4633411A (en) * 1982-12-27 1986-12-30 Rockwell International Corporation Link quality analyzer
US4706286A (en) 1983-12-30 1987-11-10 Litton Systems, Inc. Method and circuit for extraction of Doppler information from a pseudo-noise modulated carrier
DE3513361A1 (de) 1985-04-15 1986-10-16 Philips Patentverwaltung Gmbh, 2000 Hamburg Verfahren und schaltungsanordnung zur qualitaetsmessung von funkuebertragungskanaelen eines funkuebertragungssystems
JP2600879B2 (ja) 1988-12-27 1997-04-16 株式会社日本自動車部品総合研究所 トップラレーダ速度検出方法
US5220584A (en) * 1990-12-21 1993-06-15 Mikros Systems Corp. System for demodulation and synchronizing multiple tone waveforms
US5272446A (en) * 1991-11-29 1993-12-21 Comsat Digitally implemented fast frequency estimator/demodulator for low bit rate maritime and mobile data communications without the use of an acquisition preamble
JP3512296B2 (ja) * 1996-03-08 2004-03-29 富士通株式会社 フェージング等化器
JP3681230B2 (ja) * 1996-07-30 2005-08-10 松下電器産業株式会社 スペクトル拡散通信装置
JP3335887B2 (ja) * 1997-08-20 2002-10-21 松下電器産業株式会社 スペクトル拡散復調装置及びスペクトル拡散復調方法

Also Published As

Publication number Publication date
CN1169310C (zh) 2004-09-29
ATE303681T1 (de) 2005-09-15
CN1351781A (zh) 2002-05-29
EP1166455A1 (de) 2002-01-02
EP1166455B1 (de) 2005-08-31
US6563861B1 (en) 2003-05-13
JP2002540672A (ja) 2002-11-26
TR200102697T2 (tr) 2002-04-22
AU3710500A (en) 2000-10-09
MY124757A (en) 2006-07-31
JP4446606B2 (ja) 2010-04-07
WO2000057568A1 (en) 2000-09-28

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Legal Events

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