DE69611986D1 - Schaltung zur Schätzung der Frequenzverschiebung und AFC-Schaltung zur Anwendung derselben - Google Patents

Schaltung zur Schätzung der Frequenzverschiebung und AFC-Schaltung zur Anwendung derselben

Info

Publication number
DE69611986D1
DE69611986D1 DE69611986T DE69611986T DE69611986D1 DE 69611986 D1 DE69611986 D1 DE 69611986D1 DE 69611986 T DE69611986 T DE 69611986T DE 69611986 T DE69611986 T DE 69611986T DE 69611986 D1 DE69611986 D1 DE 69611986D1
Authority
DE
Germany
Prior art keywords
circuit
applying
same
frequency shift
shift estimation
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 - Fee Related
Application number
DE69611986T
Other languages
English (en)
Other versions
DE69611986T2 (de
Inventor
Yasushi Sogabe
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Application granted granted Critical
Publication of DE69611986D1 publication Critical patent/DE69611986D1/de
Publication of DE69611986T2 publication Critical patent/DE69611986T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • 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
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H04L27/2332—Demodulator circuits; Receiver circuits using non-coherent demodulation using a non-coherent carrier
    • 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
    • H04L2027/0046—Open loops
    • 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
    • H04L2027/0065—Frequency 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
    • H04L2027/0083—Signalling arrangements
    • H04L2027/0089—In-band signals
    • H04L2027/0091—Continuous signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
DE69611986T 1996-02-02 1996-12-19 Schaltung zur Schätzung der Frequenzverschiebung und AFC-Schaltung zur Anwendung derselben Expired - Fee Related DE69611986T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP01767396A JP3271504B2 (ja) 1996-02-02 1996-02-02 周波数推定回路およびそれを用いたａｆｃ回路

Publications (2)

Publication Number Publication Date
DE69611986D1 true DE69611986D1 (de) 2001-04-12
DE69611986T2 DE69611986T2 (de) 2001-10-04

Family

ID=11950383

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69611986T Expired - Fee Related DE69611986T2 (de) 1996-02-02 1996-12-19 Schaltung zur Schätzung der Frequenzverschiebung und AFC-Schaltung zur Anwendung derselben

Country Status (6)

Country Link
US (1) US5812611A (de)
EP (1) EP0788225B1 (de)
JP (1) JP3271504B2 (de)
AU (1) AU685717B2 (de)
CA (1) CA2196468C (de)
DE (1) DE69611986T2 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6134260A (en) * 1997-12-16 2000-10-17 Ericsson Inc. Method and apparatus for frequency acquisition and tracking for DS-SS CDMA receivers
EP0986224A3 (de) 1998-09-01 2000-03-22 Koninklijke Philips Electronics N.V. Abschwächungs- und Frequenzablageschätzung
JP3296421B2 (ja) * 1998-09-28 2002-07-02 日本電気株式会社 周波数推定装置
US6724835B1 (en) * 1999-04-20 2004-04-20 Symmetricam, Inc. Carrier tracking method
US6218896B1 (en) * 1999-08-27 2001-04-17 Tachyon, Inc. Vectored demodulation and frequency estimation apparatus and method
US6839388B2 (en) 2001-01-22 2005-01-04 Koninklijke Philips Electronics N.V. System and method for providing frequency domain synchronization for single carrier signals
KR100406530B1 (ko) * 2001-11-30 2003-11-21 한국전자통신연구원 주파수 옵셋 측정부를 사용한 자동 주파수 제어 장치 및그 방법
DE10309262B4 (de) * 2003-03-03 2007-08-23 Rohde & Schwarz Gmbh & Co. Kg Verfahren zum Schätzen der Frequenz und/oder der Phase einer digitalen Signalfolge
US7590199B2 (en) * 2003-09-12 2009-09-15 Advantech Advanced Microwave Technologies Inc. Hybrid frequency offset estimator
DE102004039016A1 (de) * 2004-08-11 2006-02-23 Rohde & Schwarz Gmbh & Co. Kg Verfahren und Vorrichtung zum Schätzen der Frequenz und/oder der Phase mit blockweiser Grobschätzung
EP1696557B1 (de) * 2005-02-25 2007-09-26 Nemerix SA Half Bin linearer Frequenzdiskriminator
EP1837994B1 (de) 2006-03-22 2009-12-02 Qualcomm Incorporated Breitband Frequenzdiskriminator und Funkortungsempfänger
JP4941025B2 (ja) * 2007-03-14 2012-05-30 株式会社豊田中央研究所 Ｏｆｄｍ伝送方式における受信装置のｃ／ｎ比演算方法及びその機能を有した受信装置
WO2009093316A1 (ja) * 2008-01-23 2009-07-30 Anritsu Corporation 被測定信号の繰り返し周波数検出方法及びそれを用いるサンプリング装置並びに波形観測システム
JP6103843B2 (ja) * 2012-07-23 2017-03-29 ラピスセミコンダクタ株式会社 ノイズ除去回路、受信機、及びノイズ除去方法
GB201406340D0 (en) 2014-04-08 2014-05-21 Analog Devices Technology Dominant signal detection method and apparatus
GB201406346D0 (en) * 2014-04-08 2014-05-21 Analog Devices Technology Unwanted component reduction system
EP3168638A4 (de) * 2014-07-10 2018-06-13 Sfft Company Limited Spitzenfrequenzdetektionsvorrichtung, -verfahren und programm
CN107306152A (zh) * 2016-04-22 2017-10-31 富士通株式会社 信号处理装置、信道间隔检测装置、方法和系统
TWI623217B (zh) * 2016-05-09 2018-05-01 晨星半導體股份有限公司 處理載波頻率偏移的裝置及方法
CN115333654B (zh) * 2022-10-13 2023-02-03 成都爱旗科技有限公司 一种频偏检测方法、系统及电子设备

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3805946A1 (de) * 1988-02-25 1989-09-07 Fraunhofer Ges Forschung Vorrichtung zur ermittlung von charakteristischen parametern aus den eingangs- und ausgangssignalen eines systems fuer die audiosignalverarbeitung
US5287388A (en) * 1991-06-25 1994-02-15 Kabushiki Kaisha Toshiba Frequency offset removal method and apparatus
JP2808954B2 (ja) * 1991-11-13 1998-10-08 国際電信電話株式会社 無変調信号検出及び周波数引き込み装置
JP3196211B2 (ja) * 1992-05-08 2001-08-06 モトローラ・インコーポレイテッド 無線受信機の同調を選択する方法および回路
FR2693861A1 (fr) * 1992-07-16 1994-01-21 Philips Electronique Lab Récepteur de signaux à répartition multiplexée de fréquences orthogonales muni d'un dispositif de synchronisation de fréquences.
US5428647A (en) * 1992-12-07 1995-06-27 Motorola, Inc. Method and apparatus for synchronizing a received signal in a digital radio communication system
JP3214159B2 (ja) * 1993-01-22 2001-10-02 三菱電機株式会社 キャリア検出器
JP2611623B2 (ja) * 1993-06-08 1997-05-21 日本電気株式会社 自動周波数制御装置
US5598441A (en) * 1994-10-13 1997-01-28 Westinghouse Electric Corp. Carrier acquisition technique for mobile radio QPSK demodulator

Also Published As

Publication number Publication date
EP0788225B1 (de) 2001-03-07
JPH09214293A (ja) 1997-08-15
EP0788225A1 (de) 1997-08-06
AU1016097A (en) 1997-08-07
DE69611986T2 (de) 2001-10-04
US5812611A (en) 1998-09-22
AU685717B2 (en) 1998-01-22
CA2196468A1 (en) 1997-08-03
JP3271504B2 (ja) 2002-04-02
CA2196468C (en) 2000-09-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee