ATE261207T1 - Modulator unter verwendung digitaler synthese - Google Patents

Modulator unter verwendung digitaler synthese

Info

Publication number
ATE261207T1
ATE261207T1 AT01938325T AT01938325T ATE261207T1 AT E261207 T1 ATE261207 T1 AT E261207T1 AT 01938325 T AT01938325 T AT 01938325T AT 01938325 T AT01938325 T AT 01938325T AT E261207 T1 ATE261207 T1 AT E261207T1
Authority
AT
Austria
Prior art keywords
frequency modulation
accentuation
filter
pll
accentuated
Prior art date
Application number
AT01938325T
Other languages
English (en)
Inventor
Guillaume Vilcocq
Corinne Brun
Original Assignee
Nortel Networks France
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 Nortel Networks France filed Critical Nortel Networks France
Application granted granted Critical
Publication of ATE261207T1 publication Critical patent/ATE261207T1/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0991—Modifications of modulator for regulating the mean frequency using a phase locked loop including calibration means or calibration methods
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0916—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop
    • H03C3/0925—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop applying frequency modulation at the divider in the feedback loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/0916—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop
    • H03C3/0933—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop using fractional frequency division in the feedback loop of the phase locked loop
    • 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
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/197—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
    • H03L7/1974—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division
    • H03L7/1976—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division for fractional frequency division using a phase accumulator for controlling the counter or frequency divider
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/12—Modulator circuits; Transmitter circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Transmitters (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Holo Graphy (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Liquid Crystal (AREA)
AT01938325T 2000-05-31 2001-05-23 Modulator unter verwendung digitaler synthese ATE261207T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0007059A FR2809890B1 (fr) 2000-05-31 2000-05-31 Synthetiseur a modulation numerique
PCT/FR2001/001606 WO2001093415A1 (fr) 2000-05-31 2001-05-23 Synthetiseur a modulation numerique

Publications (1)

Publication Number Publication Date
ATE261207T1 true ATE261207T1 (de) 2004-03-15

Family

ID=8850887

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01938325T ATE261207T1 (de) 2000-05-31 2001-05-23 Modulator unter verwendung digitaler synthese

Country Status (7)

Country Link
US (1) US20040041638A1 (de)
EP (1) EP1290783B1 (de)
AT (1) ATE261207T1 (de)
AU (1) AU2001264014A1 (de)
DE (1) DE60102237D1 (de)
FR (1) FR2809890B1 (de)
WO (1) WO2001093415A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002363140A1 (en) * 2001-10-31 2003-05-12 Sirf Technologies, Inc. Fractional-r- frequency synthesizer
US7190747B2 (en) * 2002-03-25 2007-03-13 Bae Systems Information And Electronic Systems Integration Inc. Frequency mismatch compensation for multiuser detection
DE10243382A1 (de) * 2002-06-27 2004-04-08 Infineon Technologies Ag Schaltungsanordnung mit Phasenregelkreis und Sendeempfänger mit der Schaltungsanordnung
US7430265B2 (en) 2002-06-27 2008-09-30 Infineon Technologies Ag Circuit arrangement provided with a phase-locked loop and transmitter-receiver with said circuit arrangement
JP4282998B2 (ja) * 2003-01-08 2009-06-24 パナソニック株式会社 変調器及びその補正方法
US7912145B2 (en) * 2003-12-15 2011-03-22 Marvell World Trade Ltd. Filter for a modulator and methods thereof
US20050215216A1 (en) * 2004-03-25 2005-09-29 Ess Technology, Inc. Sigma delta modulator loop configured to compensate amplifier noise affecting signals in the AM radio frequency band
US7477686B2 (en) * 2004-09-01 2009-01-13 Intel Corporation Apparatus and method of adaptive filter
US20080232443A1 (en) * 2007-03-23 2008-09-25 Tai-Yuan Yu Signal generating apparatus
US7382201B1 (en) * 2007-03-23 2008-06-03 Mediatek Inc. Signal generating apparatus and method thereof
US7991102B2 (en) * 2007-09-20 2011-08-02 Mediatek Inc. Signal generating apparatus and method thereof
US8081936B2 (en) * 2009-01-22 2011-12-20 Mediatek Inc. Method for tuning a digital compensation filter within a transmitter, and associated digital compensation filter and associated calibration circuit
CN102545886B (zh) * 2010-12-23 2014-02-05 博通集成电路（上海）有限公司 Gfsk调制器、gfsk调制方法及发射机
TWI524705B (zh) * 2013-05-15 2016-03-01 瑞昱半導體股份有限公司 通訊系統校正方法以及通訊系統校正裝置
CN115425969B (zh) * 2022-09-14 2023-09-08 深圳市华智芯联科技有限公司 锁相环路的补偿滤波器设计方法、装置及计算机设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6008703A (en) * 1997-01-31 1999-12-28 Massachusetts Institute Of Technology Digital compensation for wideband modulation of a phase locked loop frequency synthesizer
US6047029A (en) * 1997-09-16 2000-04-04 Telefonaktiebolaget Lm Ericsson Post-filtered delta sigma for controlling a phase locked loop modulator
US5952895A (en) * 1998-02-23 1999-09-14 Tropian, Inc. Direct digital synthesis of precise, stable angle modulated RF signal
DE69826835T2 (de) * 1998-05-29 2006-02-23 Motorola Semiconducteurs S.A. Frequenzsynthetisierer

Also Published As

Publication number Publication date
US20040041638A1 (en) 2004-03-04
FR2809890A1 (fr) 2001-12-07
EP1290783B1 (de) 2004-03-03
DE60102237D1 (de) 2004-04-08
FR2809890B1 (fr) 2002-08-16
EP1290783A1 (de) 2003-03-12
AU2001264014A1 (en) 2001-12-11
WO2001093415A1 (fr) 2001-12-06

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Legal Events

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