DE502007002632D1 - Empfängerstruktur und verfahren zur demodulation eines quadraturmodulierten signals - Google Patents

Empfängerstruktur und verfahren zur demodulation eines quadraturmodulierten signals

Info

Publication number
DE502007002632D1
DE502007002632D1 DE502007002632T DE502007002632T DE502007002632D1 DE 502007002632 D1 DE502007002632 D1 DE 502007002632D1 DE 502007002632 T DE502007002632 T DE 502007002632T DE 502007002632 T DE502007002632 T DE 502007002632T DE 502007002632 D1 DE502007002632 D1 DE 502007002632D1
Authority
DE
Germany
Prior art keywords
signal
equalizer
demodulating
quadrature
modulated signal
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.)
Active
Application number
DE502007002632T
Other languages
English (en)
Inventor
Fabian Hauske
Berthold Lankl
Ernst-Dieter Schmidt
Changsong Xie
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.)
Nokia Solutions and Networks GmbH and Co KG
Original Assignee
Nokia Siemens Networks GmbH and Co KG
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 Siemens Networks GmbH and Co KG filed Critical Nokia Siemens Networks GmbH and Co KG
Publication of DE502007002632D1 publication Critical patent/DE502007002632D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/223—Demodulation in the optical domain
    • 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
    • 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
DE502007002632T 2006-07-14 2007-07-05 Empfängerstruktur und verfahren zur demodulation eines quadraturmodulierten signals Active DE502007002632D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006032786 2006-07-14
PCT/EP2007/056810 WO2008006768A1 (de) 2006-07-14 2007-07-05 Empfängerstruktur und verfahren zur demodulation eines quadraturmodulierten signals

Publications (1)

Publication Number Publication Date
DE502007002632D1 true DE502007002632D1 (de) 2010-03-04

Family

ID=38617365

Family Applications (1)

Application Number Title Priority Date Filing Date
DE502007002632T Active DE502007002632D1 (de) 2006-07-14 2007-07-05 Empfängerstruktur und verfahren zur demodulation eines quadraturmodulierten signals

Country Status (7)

Country Link
US (1) US8199803B2 (de)
EP (1) EP2044742B1 (de)
CN (1) CN101491044B (de)
AT (1) ATE455421T1 (de)
CA (1) CA2658148C (de)
DE (1) DE502007002632D1 (de)
WO (1) WO2008006768A1 (de)

Families Citing this family (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0718706D0 (en) 2007-09-25 2007-11-07 Creative Physics Ltd Method and apparatus for reducing laser speckle
US9335604B2 (en) 2013-12-11 2016-05-10 Milan Momcilo Popovich Holographic waveguide display
US11726332B2 (en) 2009-04-27 2023-08-15 Digilens Inc. Diffractive projection apparatus
US8261558B2 (en) 2009-06-25 2012-09-11 Nomaco Inc. Self-adjusting insulation, including insulation particularly suited for pipe or duct
US9341846B2 (en) 2012-04-25 2016-05-17 Rockwell Collins Inc. Holographic wide angle display
US11320571B2 (en) 2012-11-16 2022-05-03 Rockwell Collins, Inc. Transparent waveguide display providing upper and lower fields of view with uniform light extraction
US11300795B1 (en) 2009-09-30 2022-04-12 Digilens Inc. Systems for and methods of using fold gratings coordinated with output couplers for dual axis expansion
US10795160B1 (en) 2014-09-25 2020-10-06 Rockwell Collins, Inc. Systems for and methods of using fold gratings for dual axis expansion
US8233204B1 (en) 2009-09-30 2012-07-31 Rockwell Collins, Inc. Optical displays
US8659826B1 (en) 2010-02-04 2014-02-25 Rockwell Collins, Inc. Worn display system and method without requiring real time tracking for boresight precision
US9274349B2 (en) 2011-04-07 2016-03-01 Digilens Inc. Laser despeckler based on angular diversity
EP2748670B1 (de) 2011-08-24 2015-11-18 Rockwell Collins, Inc. Tragbare datenanzeige
US10670876B2 (en) 2011-08-24 2020-06-02 Digilens Inc. Waveguide laser illuminator incorporating a despeckler
WO2016020630A2 (en) 2014-08-08 2016-02-11 Milan Momcilo Popovich Waveguide laser illuminator incorporating a despeckler
US9715067B1 (en) 2011-09-30 2017-07-25 Rockwell Collins, Inc. Ultra-compact HUD utilizing waveguide pupil expander with surface relief gratings in high refractive index materials
US9366864B1 (en) 2011-09-30 2016-06-14 Rockwell Collins, Inc. System for and method of displaying information without need for a combiner alignment detector
US9599813B1 (en) 2011-09-30 2017-03-21 Rockwell Collins, Inc. Waveguide combiner system and method with less susceptibility to glare
US8634139B1 (en) 2011-09-30 2014-01-21 Rockwell Collins, Inc. System for and method of catadioptric collimation in a compact head up display (HUD)
US20150010265A1 (en) 2012-01-06 2015-01-08 Milan, Momcilo POPOVICH Contact image sensor using switchable bragg gratings
US9523852B1 (en) 2012-03-28 2016-12-20 Rockwell Collins, Inc. Micro collimator system and method for a head up display (HUD)
US9157566B2 (en) 2012-05-11 2015-10-13 Nomaco Inc. Insulation systems employing expansion features to insulate elongated containers subject to extreme temperature fluctuations, and related components and methods
US9933684B2 (en) 2012-11-16 2018-04-03 Rockwell Collins, Inc. Transparent waveguide display providing upper and lower fields of view having a specific light output aperture configuration
US9674413B1 (en) 2013-04-17 2017-06-06 Rockwell Collins, Inc. Vision system and method having improved performance and solar mitigation
US9727772B2 (en) 2013-07-31 2017-08-08 Digilens, Inc. Method and apparatus for contact image sensing
US9244281B1 (en) 2013-09-26 2016-01-26 Rockwell Collins, Inc. Display system and method using a detached combiner
US10732407B1 (en) 2014-01-10 2020-08-04 Rockwell Collins, Inc. Near eye head up display system and method with fixed combiner
US9519089B1 (en) 2014-01-30 2016-12-13 Rockwell Collins, Inc. High performance volume phase gratings
US9244280B1 (en) 2014-03-25 2016-01-26 Rockwell Collins, Inc. Near eye display system and method for display enhancement or redundancy
US10359736B2 (en) 2014-08-08 2019-07-23 Digilens Inc. Method for holographic mastering and replication
WO2016042283A1 (en) 2014-09-19 2016-03-24 Milan Momcilo Popovich Method and apparatus for generating input images for holographic waveguide displays
US10088675B1 (en) 2015-05-18 2018-10-02 Rockwell Collins, Inc. Turning light pipe for a pupil expansion system and method
US9715110B1 (en) 2014-09-25 2017-07-25 Rockwell Collins, Inc. Automotive head up display (HUD)
CN107113258B (zh) * 2014-11-13 2020-10-09 瑞典爱立信有限公司 相干光学接收器中光学通信信号的数字信号处理
CN107873086B (zh) 2015-01-12 2020-03-20 迪吉伦斯公司 环境隔离的波导显示器
US9632226B2 (en) 2015-02-12 2017-04-25 Digilens Inc. Waveguide grating device
US10247943B1 (en) 2015-05-18 2019-04-02 Rockwell Collins, Inc. Head up display (HUD) using a light pipe
US11366316B2 (en) 2015-05-18 2022-06-21 Rockwell Collins, Inc. Head up display (HUD) using a light pipe
US10126552B2 (en) 2015-05-18 2018-11-13 Rockwell Collins, Inc. Micro collimator system and method for a head up display (HUD)
US10108010B2 (en) 2015-06-29 2018-10-23 Rockwell Collins, Inc. System for and method of integrating head up displays and head down displays
WO2017060665A1 (en) 2015-10-05 2017-04-13 Milan Momcilo Popovich Waveguide display
US10598932B1 (en) 2016-01-06 2020-03-24 Rockwell Collins, Inc. Head up display for integrating views of conformally mapped symbols and a fixed image source
JP6895451B2 (ja) 2016-03-24 2021-06-30 ディジレンズ インコーポレイテッド 偏光選択ホログラフィー導波管デバイスを提供するための方法および装置
JP6734933B2 (ja) 2016-04-11 2020-08-05 ディジレンズ インコーポレイテッド 構造化光投影のためのホログラフィック導波管装置
WO2018102834A2 (en) 2016-12-02 2018-06-07 Digilens, Inc. Waveguide device with uniform output illumination
US10545346B2 (en) 2017-01-05 2020-01-28 Digilens Inc. Wearable heads up displays
US10295824B2 (en) 2017-01-26 2019-05-21 Rockwell Collins, Inc. Head up display with an angled light pipe
EP3698214A4 (de) 2017-10-16 2021-10-27 Digilens Inc. Systeme und verfahren zum multiplizieren der bildauflösung einer pixelierten anzeige
KR20200108030A (ko) 2018-01-08 2020-09-16 디지렌즈 인코포레이티드. 도파관 셀 내의 홀로그래픽 격자의 높은 처리능력의 레코딩을 위한 시스템 및 방법
US10914950B2 (en) 2018-01-08 2021-02-09 Digilens Inc. Waveguide architectures and related methods of manufacturing
US11402801B2 (en) 2018-07-25 2022-08-02 Digilens Inc. Systems and methods for fabricating a multilayer optical structure
JP2022520472A (ja) 2019-02-15 2022-03-30 ディジレンズ インコーポレイテッド 統合された格子を使用してホログラフィック導波管ディスプレイを提供するための方法および装置
KR20210134763A (ko) 2019-03-12 2021-11-10 디지렌즈 인코포레이티드. 홀로그래픽 도파관 백라이트 및 관련된 제조 방법
KR20220016990A (ko) 2019-06-07 2022-02-10 디지렌즈 인코포레이티드. 투과 및 반사 격자를 통합하는 도파관 및 관련 제조 방법
JP2022543571A (ja) 2019-07-29 2022-10-13 ディジレンズ インコーポレイテッド 画素化されたディスプレイの画像解像度および視野を乗算するための方法および装置
EP4022370A4 (de) 2019-08-29 2023-08-30 Digilens Inc. Evakuierungs-bragg-gitter und herstellungsverfahren

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR241298A1 (es) * 1985-10-03 1992-04-30 Siemens Ag Ecualizador transversal adaptivo .
GB8605518D0 (en) * 1986-03-06 1986-04-09 Gen Electric Co Plc Transversal equaliser arrangements
US4716577A (en) * 1986-07-07 1987-12-29 Rockwell International Corporation Autoequalizer
GB9523578D0 (en) * 1995-11-17 1996-01-17 Philips Electronics Nv Demodulator
US6560294B1 (en) * 1998-09-25 2003-05-06 Texas Instruments Incorporated Phase estimation in carrier recovery of phase-modulated signals such as QAM signals
IL154552A0 (en) * 2000-08-31 2003-09-17 Millimetrix Broadband Networks Improved spatial efficiency for wireless rings and network of links in millimeter wave (mmw) communication systems
US7224724B2 (en) * 2001-07-09 2007-05-29 Intel Corporation Reduced alphabet equalizer using iterative equalization
US6693568B2 (en) * 2001-09-28 2004-02-17 Nokia Corporation Apparatus, and an associated method, for detecting digital data using MLSE detection with a dynamically-sized trellis
DE10323407B4 (de) 2003-05-23 2011-01-13 Infineon Technologies Ag Verfahren und Vorrichtung zum Entzerren eines über einen Nutzkanal übertragenen Signals nach dem DF-Verfahren unter Berücksichtigung eines Störkanals
EP1494413A1 (de) 2003-07-02 2005-01-05 CoreOptics, Inc., c/o The Corporation Trust Center Kanal- und Folgeschätzung zum Empfang optischer Signale
DE10338050B9 (de) 2003-08-19 2008-11-27 Infineon Technologies Ag Verfahren zur Entzerrung eines Datensignals unter Berücksichtigung von Störkanälen
US20050163205A1 (en) * 2004-01-27 2005-07-28 Crestcom, Inc. Equalized signal path with predictive subtraction signal and method therefor

Also Published As

Publication number Publication date
EP2044742B1 (de) 2010-01-13
CA2658148C (en) 2013-10-15
CN101491044A (zh) 2009-07-22
CN101491044B (zh) 2012-08-22
ATE455421T1 (de) 2010-01-15
CA2658148A1 (en) 2008-01-17
US20100128772A1 (en) 2010-05-27
EP2044742A1 (de) 2009-04-08
US8199803B2 (en) 2012-06-12
WO2008006768A1 (de) 2008-01-17

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