DE69125356D1 - Verfahren zum Nachführen einer Trägerfrequenz. - Google Patents

Verfahren zum Nachführen einer Trägerfrequenz.

Info

Publication number
DE69125356D1
DE69125356D1 DE69125356T DE69125356T DE69125356D1 DE 69125356 D1 DE69125356 D1 DE 69125356D1 DE 69125356 T DE69125356 T DE 69125356T DE 69125356 T DE69125356 T DE 69125356T DE 69125356 D1 DE69125356 D1 DE 69125356D1
Authority
DE
Germany
Prior art keywords
tracking
carrier frequency
carrier
frequency
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
DE69125356T
Other languages
English (en)
Other versions
DE69125356T2 (de
Inventor
Iradj Shahriary
Kevin M Mcnab
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.)
DirecTV Group Inc
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Application granted granted Critical
Publication of DE69125356D1 publication Critical patent/DE69125356D1/de
Publication of DE69125356T2 publication Critical patent/DE69125356T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
    • H03L7/0991—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider
    • H03L7/0994—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider comprising an accumulator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • H03L7/107—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a variable transfer function for the loop, e.g. low pass filter having a variable bandwidth
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • H03L7/12—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a scanning signal
DE69125356T 1990-12-26 1991-12-23 Verfahren zum Nachführen einer Trägerfrequenz. Expired - Fee Related DE69125356T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/633,864 US5130671A (en) 1990-12-26 1990-12-26 Phase-locked loop frequency tracking device including a direct digital synthesizer

Publications (2)

Publication Number Publication Date
DE69125356D1 true DE69125356D1 (de) 1997-04-30
DE69125356T2 DE69125356T2 (de) 1997-07-03

Family

ID=24541432

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69125356T Expired - Fee Related DE69125356T2 (de) 1990-12-26 1991-12-23 Verfahren zum Nachführen einer Trägerfrequenz.

Country Status (6)

Country Link
US (1) US5130671A (de)
EP (1) EP0492588B1 (de)
JP (1) JPH04309014A (de)
AU (1) AU634680B2 (de)
CA (1) CA2050771C (de)
DE (1) DE69125356T2 (de)

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Publication number Priority date Publication date Assignee Title
JPH05191304A (ja) * 1992-01-08 1993-07-30 Nec Corp 送受信装置用シンセサイザ
US5331293A (en) * 1992-09-02 1994-07-19 Motorola, Inc. Compensated digital frequency synthesizer
US5313173A (en) * 1993-04-26 1994-05-17 Ericsson Ge Mobile Communications Inc. Quadrature modulated phase-locked loop
FR2705175B1 (fr) * 1993-05-12 1995-07-07 Alcatel Telspace Dispositif de reduction des raies parasites du signal de sortie d'un synthetiseur de frequence numerique.
GB9320067D0 (en) * 1993-09-29 1993-11-17 Sgs Thomson Microelectronics Demodulation of fm audio carrier
JP2806239B2 (ja) * 1993-12-28 1998-09-30 三菱電機株式会社 周波数シンセサイザ
JP3320576B2 (ja) * 1994-12-22 2002-09-03 株式会社東芝 発振回路
JP3141760B2 (ja) * 1995-12-06 2001-03-05 ヤマハ株式会社 デジタルｐｌｌ回路
DE19608666A1 (de) * 1996-03-06 1997-09-11 Bosch Gmbh Robert Verfahren und Anordnung zur Ableitung von mehreren Taktsignalen
FI107479B (fi) 1997-08-06 2001-08-15 Nokia Networks Oy Askelohjattu taajuussyntetisaattori
JP2000068824A (ja) 1998-08-21 2000-03-03 Fujitsu Ltd Ｐｌｌ制御装置、ｐｌｌ制御方法およびリミッタ
DE19852676A1 (de) * 1998-11-16 2000-05-25 Bosch Gmbh Robert Vorrichtung zur Frequenzsynchronisation in einem Nachrichtenübertragungssystem
US6198353B1 (en) * 1999-08-05 2001-03-06 Lucent Technologies, Inc. Phase locked loop having direct digital synthesizer dividers and improved phase detector
US6366174B1 (en) 2000-02-21 2002-04-02 Lexmark International, Inc. Method and apparatus for providing a clock generation circuit for digitally controlled frequency or spread spectrum clocking
US6658043B2 (en) 2001-10-26 2003-12-02 Lexmark International, Inc. Method and apparatus for providing multiple spread spectrum clock generator circuits with overlapping output frequencies
US7124153B2 (en) 2002-03-18 2006-10-17 Genesis Microchip Inc. Frequency converter and methods of use thereof
US7327816B2 (en) * 2003-12-23 2008-02-05 Teradyne Inc. High resolution synthesizer with improved signal purity
US7224302B2 (en) * 2005-08-23 2007-05-29 Silicon Laboratories, Inc. Integrated PM/FM modulator using direct digital frequency synthesis and method therefor
JP4842661B2 (ja) * 2006-02-17 2011-12-21 株式会社ダイヘン ディジタル位相同期装置
US7821472B2 (en) * 2007-03-19 2010-10-26 Broadcom Corporation Method and system for FM transmit and FM receive using a transformer as a duplexer
US7683722B2 (en) * 2007-09-28 2010-03-23 Broadcom Corporation Method and system for signal generation via a PLL with DDFS feedback path
US20090085678A1 (en) * 2007-09-28 2009-04-02 Ahmadreza Rofougaran Method and system for signal generation via a digitally controlled oscillator
US20090085674A1 (en) * 2007-09-28 2009-04-02 Ahmadreza Rofougaran Method and system for signal generation via a pll with digital phase detection
US7724096B2 (en) * 2007-09-28 2010-05-25 Broadcom Corporation Method and system for signal generation via a PLL with undersampled feedback
US8086190B2 (en) * 2008-03-27 2011-12-27 Broadcom Corporation Method and system for reconfigurable devices for multi-frequency coexistence
US20090243741A1 (en) * 2008-03-27 2009-10-01 Ahmadreza Rofougaran Method and system for processing signals via an oscillator load embedded in an integrated circuit (ic) package
US7782145B2 (en) * 2008-03-28 2010-08-24 Broadcom Corporation Method and system for frequency tuning based on characterization of an oscillator
JP2017183958A (ja) * 2016-03-30 2017-10-05 Ｎｅｃプラットフォームズ株式会社 ホールドオーバ制御回路、およびホールドオーバ制御方法
CN109067392A (zh) * 2018-07-25 2018-12-21 北京无线电计量测试研究所 一种基于光电振荡器的频率合成方法及装置
CN112087230A (zh) * 2020-09-17 2020-12-15 中国科学院空天信息创新研究院 宽带线性调频信号发生装置及方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973209A (en) * 1975-08-29 1976-08-03 Rca Corporation Digital arithmetic synthesizer phase lock loop with direct doppler and frequency readout
EP0070949B1 (de) * 1981-07-28 1986-05-07 International Business Machines Corporation Übertragungsverfahren für Sprache und digitale Daten und Ausführungsanordnung für das genannte Verfahren
US4568888A (en) * 1983-11-08 1986-02-04 Trw Inc. PLL Fast frequency synthesizer with memories for coarse tuning and loop gain correction
US4577163A (en) * 1984-07-09 1986-03-18 Honeywell Inc. Digital phase locked loop
JPS6273805A (ja) * 1985-09-27 1987-04-04 Toshiba Audio Video Eng Corp 電圧制御発振回路
JPH07120942B2 (ja) * 1985-11-27 1995-12-20 株式会社日立製作所 Ｐｌｌ回路
US4855683A (en) * 1987-11-18 1989-08-08 Bell Communications Research, Inc. Digital phase locked loop with bounded jitter
US4951004A (en) * 1989-03-17 1990-08-21 John Fluke Mfg. Co., Inc. Coherent direct digital synthesizer
US4965533A (en) * 1989-08-31 1990-10-23 Qualcomm, Inc. Direct digital synthesizer driven phase lock loop frequency synthesizer
JPH0437205A (ja) * 1990-05-31 1992-02-07 Sony Corp 発振装置

Also Published As

Publication number Publication date
DE69125356T2 (de) 1997-07-03
JPH04309014A (ja) 1992-10-30
US5130671A (en) 1992-07-14
AU9001591A (en) 1992-07-02
CA2050771C (en) 1996-07-09
EP0492588A2 (de) 1992-07-01
EP0492588B1 (de) 1997-03-26
CA2050771A1 (en) 1992-06-27
AU634680B2 (en) 1993-02-25
EP0492588A3 (en) 1992-11-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HUGHES ELECTRONICS CORP., EL SEGUNDO, CALIF., US

8339 Ceased/non-payment of the annual fee