DK0624954T3 - Indretning til formindskelse af forstyrrende spektrale linier i udgangssignalet fra en digital frekvenssyntesizer. - Google Patents

Indretning til formindskelse af forstyrrende spektrale linier i udgangssignalet fra en digital frekvenssyntesizer.

Info

Publication number
DK0624954T3
DK0624954T3 DK94401021T DK94401021T DK0624954T3 DK 0624954 T3 DK0624954 T3 DK 0624954T3 DK 94401021 T DK94401021 T DK 94401021T DK 94401021 T DK94401021 T DK 94401021T DK 0624954 T3 DK0624954 T3 DK 0624954T3
Authority
DK
Denmark
Prior art keywords
output
frequency synthesizer
digital frequency
spectral lines
interfering spectral
Prior art date
Application number
DK94401021T
Other languages
Danish (da)
English (en)
Inventor
Michel Beuzer
Antoine Bourcereau
Original Assignee
Alsthom Cge Alcatel
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 Alsthom Cge Alcatel filed Critical Alsthom Cge Alcatel
Application granted granted Critical
Publication of DK0624954T3 publication Critical patent/DK0624954T3/da

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/02—Digital function generators
    • G06F1/03—Digital function generators working, at least partly, by table look-up
    • G06F1/0321—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers
    • 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
    • H03L7/02—Automatic control of frequency or phase; Synchronisation using a frequency discriminator comprising a passive frequency-determining element
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Amplitude Modulation (AREA)
  • Noise Elimination (AREA)
DK94401021T 1993-05-12 1994-05-09 Indretning til formindskelse af forstyrrende spektrale linier i udgangssignalet fra en digital frekvenssyntesizer. DK0624954T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9305704A FR2705175B1 (fr) 1993-05-12 1993-05-12 Dispositif de reduction des raies parasites du signal de sortie d'un synthetiseur de frequence numerique.

Publications (1)

Publication Number Publication Date
DK0624954T3 true DK0624954T3 (da) 1997-10-27

Family

ID=9447044

Family Applications (1)

Application Number Title Priority Date Filing Date
DK94401021T DK0624954T3 (da) 1993-05-12 1994-05-09 Indretning til formindskelse af forstyrrende spektrale linier i udgangssignalet fra en digital frekvenssyntesizer.

Country Status (8)

Country Link
EP (1) EP0624954B1 (fi)
JP (1) JPH0774630A (fi)
CA (1) CA2123178A1 (fi)
DE (1) DE69406045T2 (fi)
DK (1) DK0624954T3 (fi)
ES (1) ES2107147T3 (fi)
FI (1) FI942145A (fi)
FR (1) FR2705175B1 (fi)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100985550B1 (ko) * 2009-10-01 2010-10-05 엘아이지넥스원 주식회사 직접 디지털 주파수 합성 장치 및 방법
FR2967500B1 (fr) * 2010-11-12 2013-08-16 St Microelectronics Sa Dispositif d'emission/reception d'ondes radar
CN108233924A (zh) * 2018-02-09 2018-06-29 龙营半导体股份有限公司 基于相位调制的emi减少装置及方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4336505A (en) * 1980-07-14 1982-06-22 John Fluke Mfg. Co., Inc. Controlled frequency signal source apparatus including a feedback path for the reduction of phase noise
GB2239748B (en) * 1990-01-06 1993-12-15 Plessey Co Plc Direct frequency synthesiser
US5130671A (en) * 1990-12-26 1992-07-14 Hughes Aircraft Company Phase-locked loop frequency tracking device including a direct digital synthesizer

Also Published As

Publication number Publication date
FI942145A0 (fi) 1994-05-09
EP0624954B1 (fr) 1997-10-08
FI942145A (fi) 1994-11-13
ES2107147T3 (es) 1997-11-16
JPH0774630A (ja) 1995-03-17
EP0624954A1 (fr) 1994-11-17
DE69406045T2 (de) 1998-01-29
FR2705175A1 (fr) 1994-11-18
FR2705175B1 (fr) 1995-07-07
CA2123178A1 (fr) 1994-11-13
DE69406045D1 (de) 1997-11-13

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