DE60032876D1 - Parallele fir filter sowie solche filter enthaltende demodulatoren zur verarbeitung eines digitalen signals - Google Patents

Parallele fir filter sowie solche filter enthaltende demodulatoren zur verarbeitung eines digitalen signals

Info

Publication number
DE60032876D1
DE60032876D1 DE60032876T DE60032876T DE60032876D1 DE 60032876 D1 DE60032876 D1 DE 60032876D1 DE 60032876 T DE60032876 T DE 60032876T DE 60032876 T DE60032876 T DE 60032876T DE 60032876 D1 DE60032876 D1 DE 60032876D1
Authority
DE
Germany
Prior art keywords
filters
demodulators
processing
digital signal
parallel fir
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
DE60032876T
Other languages
English (en)
Other versions
DE60032876T2 (de
Inventor
Eisaku Sasaki
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE60032876D1 publication Critical patent/DE60032876D1/de
Publication of DE60032876T2 publication Critical patent/DE60032876T2/de
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
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • 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
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2271—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals
    • H04L27/2273—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals associated with quadrature demodulation, e.g. Costas loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H04L2027/0057—Closed loops quadrature phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0067—Phase error detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0069—Loop filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmitters (AREA)
DE60032876T 1999-10-04 2000-10-04 Paralleles fir-filter sowie solches filter enthaltende demodulatoren zur verarbeitung eines digitalen signals Expired - Lifetime DE60032876T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP28278499 1999-10-04
JP28278499 1999-10-04
PCT/JP2000/006925 WO2001026316A1 (fr) 1999-10-04 2000-10-04 Demodulateur utilise pour traiter un signal numerique

Publications (2)

Publication Number Publication Date
DE60032876D1 true DE60032876D1 (de) 2007-02-22
DE60032876T2 DE60032876T2 (de) 2007-05-24

Family

ID=17657048

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60032876T Expired - Lifetime DE60032876T2 (de) 1999-10-04 2000-10-04 Paralleles fir-filter sowie solches filter enthaltende demodulatoren zur verarbeitung eines digitalen signals

Country Status (5)

Country Link
US (1) US6624691B1 (de)
EP (1) EP1137231B1 (de)
CN (1) CN1227881C (de)
DE (1) DE60032876T2 (de)
WO (1) WO2001026316A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003046587A (ja) * 2001-08-03 2003-02-14 Nec Corp 復調器
US7848402B1 (en) * 2005-09-29 2010-12-07 Altera Corporation Phase-adjusted pre-emphasis and equalization for data communication
US7514993B2 (en) * 2006-02-15 2009-04-07 Alon Konchitsky IQ demodulator
US8279989B2 (en) 2006-08-02 2012-10-02 Entropic Communications, Inc. Device and process for data rate acquisition
TWI372517B (en) * 2008-10-13 2012-09-11 Realtek Semiconductor Corp Equalizer and method for configuring the equalizer
CN102447472B (zh) * 2010-09-30 2013-05-29 上海贝尔股份有限公司 用于产生时钟信号的方法以及数控振荡器
CN102789945A (zh) * 2011-05-17 2012-11-21 上海凯世通半导体有限公司 用于产生带状束流的热阴极离子源系统
CN103117973A (zh) * 2013-03-06 2013-05-22 中国科学院自动化研究所 基于正交检波的多路并行解调系统
US9276778B2 (en) * 2014-01-31 2016-03-01 Qualcomm Incorporated Instruction and method for fused rake-finger operation on a vector processor

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2800820B2 (ja) 1983-09-30 1998-09-21 ソニー株式会社 フイルタ装置
GB2181318B (en) 1985-10-04 1989-12-28 Sony Corp Two-dimensional finite impulse response filters
GB2184316B (en) * 1985-12-17 1989-10-11 Sony Corp Two-dimensional finite impulse response filter arrangements.
JPH0740657B2 (ja) 1986-06-12 1995-05-01 富士通株式会社 フアイナイト・インパルス・レスポンス・デジタル・フイルタ
JPH0626353B2 (ja) * 1987-05-19 1994-04-06 日本電気株式会社 復調装置
GB2224184A (en) * 1988-10-24 1990-04-25 Philips Electronic Associated Digital data demodulation
JPH02156732A (ja) 1988-12-09 1990-06-15 Hitachi Ltd 復調装置
JPH02206217A (ja) 1989-02-03 1990-08-16 Fujitsu Ltd デジタルフィルタ
JPH0828649B2 (ja) 1989-02-16 1996-03-21 日本電気株式会社 ディジタルフィルタ
DE3938126A1 (de) 1989-11-16 1991-05-23 Philips Patentverwaltung Empfaenger mit direkter quadratur-abtastung des eingangssignals
EP0580924A1 (de) * 1992-07-30 1994-02-02 STMicroelectronics S.r.l. Digitale Filteranordnung
JPH06104943A (ja) 1992-09-21 1994-04-15 Nec Corp 四相位相変調装置
JPH0795667B2 (ja) 1993-01-18 1995-10-11 日本電気株式会社 トランスバーサルフィルタ
JPH06350660A (ja) 1993-06-08 1994-12-22 Nec Corp 復調装置
JPH0787145A (ja) 1993-09-16 1995-03-31 Toshiba Corp Ａｆｃ回路
US5432813A (en) * 1993-12-28 1995-07-11 Unisys Corporation Parallel processing based digital matched filter and error detector for a digital demodulator
JPH07321862A (ja) * 1994-05-25 1995-12-08 Matsushita Electric Ind Co Ltd ディジタル変調波復調装置
JPH08139775A (ja) 1994-11-14 1996-05-31 Toyo Commun Equip Co Ltd ディジタル復調装置
JPH08251249A (ja) 1995-03-13 1996-09-27 Advantest Corp 直交変調信号の復調装置
JPH0983588A (ja) 1995-09-18 1997-03-28 Mitsubishi Electric Corp 復調器及び変復調システム及び復調方法
JP2848320B2 (ja) 1996-03-07 1999-01-20 日本電気株式会社 クロック同期回路
JPH1023096A (ja) 1996-07-02 1998-01-23 Fujitsu Ltd ディジタル変調器および復調器
JP3491480B2 (ja) 1997-02-13 2004-01-26 三菱電機株式会社 タイミング再生回路及びこれを用いた復調器
JP3120833B2 (ja) 1997-05-20 2000-12-25 日本電気株式会社 バースト信号復調装置
JPH11331300A (ja) * 1998-05-19 1999-11-30 Nec Corp 復調装置
JP3206553B2 (ja) * 1998-07-22 2001-09-10 日本電気株式会社 復調装置
JP2000049882A (ja) * 1998-07-30 2000-02-18 Nec Corp クロック同期回路
US6260053B1 (en) * 1998-12-09 2001-07-10 Cirrus Logic, Inc. Efficient and scalable FIR filter architecture for decimation

Also Published As

Publication number Publication date
US6624691B1 (en) 2003-09-23
CN1339216A (zh) 2002-03-06
CN1227881C (zh) 2005-11-16
DE60032876T2 (de) 2007-05-24
WO2001026316A1 (fr) 2001-04-12
EP1137231A4 (de) 2005-10-19
EP1137231A1 (de) 2001-09-26
EP1137231B1 (de) 2007-01-10

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