DE3855215T2 - Gerät und Verfahren zur Herabsetzung des Phasenrauschens und der Nacheilung der Abstimmung - Google Patents

Gerät und Verfahren zur Herabsetzung des Phasenrauschens und der Nacheilung der Abstimmung

Info

Publication number
DE3855215T2
DE3855215T2 DE3855215T DE3855215T DE3855215T2 DE 3855215 T2 DE3855215 T2 DE 3855215T2 DE 3855215 T DE3855215 T DE 3855215T DE 3855215 T DE3855215 T DE 3855215T DE 3855215 T2 DE3855215 T2 DE 3855215T2
Authority
DE
Germany
Prior art keywords
lagging
tuning
phase noise
reducing phase
reducing
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
DE3855215T
Other languages
English (en)
Other versions
DE3855215D1 (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 DE3855215D1 publication Critical patent/DE3855215D1/de
Publication of DE3855215T2 publication Critical patent/DE3855215T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
    • H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator
    • 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
    • H03L7/20—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a harmonic phase-locked loop, i.e. a loop which can be locked to one of a number of harmonically related frequencies applied to it
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
    • H03B21/01—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies
    • H03B21/02—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies by plural beating, i.e. for frequency synthesis ; Beating in combination with multiplication or division of frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
  • Noise Elimination (AREA)
DE3855215T 1987-11-09 1988-11-08 Gerät und Verfahren zur Herabsetzung des Phasenrauschens und der Nacheilung der Abstimmung Expired - Lifetime DE3855215T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/118,902 US4918748A (en) 1987-11-09 1987-11-09 Apparatus and method for phase noise and post tuning drift cancellation

Publications (2)

Publication Number Publication Date
DE3855215D1 DE3855215D1 (de) 1996-05-23
DE3855215T2 true DE3855215T2 (de) 1996-12-12

Family

ID=22381438

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3855215T Expired - Lifetime DE3855215T2 (de) 1987-11-09 1988-11-08 Gerät und Verfahren zur Herabsetzung des Phasenrauschens und der Nacheilung der Abstimmung

Country Status (5)

Country Link
US (1) US4918748A (de)
EP (1) EP0315940B1 (de)
JP (1) JP2528952B2 (de)
CA (1) CA1294005C (de)
DE (1) DE3855215T2 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5086512A (en) * 1988-04-20 1992-02-04 Hewlett-Packard Company Compensation system for dynamically tracking and nulling local oscillator feedthrough
US5046135A (en) * 1989-11-30 1991-09-03 John E. Chance & Associates Method and apparatus for frequency stabilization of a down converter
US5109532A (en) * 1990-01-30 1992-04-28 General Instrument Corporation Elimination of phase noise and drift incident to up and down conversion in a broadcast communication system
US5210484A (en) * 1992-05-15 1993-05-11 Louis R. Fantozzi Lock-in amplifier
US5613197A (en) * 1994-11-03 1997-03-18 Hughes Aircraft Co. Multi-channel transponder with channel amplification at a common lower frequency
FR2745138B1 (fr) * 1996-02-16 1998-05-07 Thomson Multimedia Sa Dispositif de correction de bruit de phase dans un recepteur numerique
US5949472A (en) * 1996-12-10 1999-09-07 Intel Corporation Method and apparatus for tuning channels for CATV and television applications
EP1145430B1 (de) * 1998-11-12 2004-09-15 Broadcom Corporation Integrierte tunerarchitektur
US7124043B2 (en) * 2004-09-20 2006-10-17 Guzik Technical Enterprises Spectrum analyzer with phase noise compensation
EP2223428A1 (de) * 2007-11-28 2010-09-01 BAE Systems PLC Abstimmbarer filter
US8135372B2 (en) * 2009-09-08 2012-03-13 Bae Systems Information And Elecronic Systems Integration Inc. Integrated cancellation circuit for RF converter spurious tones
KR20120022315A (ko) * 2010-09-02 2012-03-12 삼성전자주식회사 냉각 시스템 및 그의 제상 제어 방법
CN111355485B (zh) * 2019-09-29 2023-03-28 西安空间无线电技术研究所 一种延时线相位漂移消除系统及方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1526338A (en) * 1976-05-22 1978-09-27 Eddystone Radio Superheterodyne receivers
US4198604A (en) * 1977-06-08 1980-04-15 Hewlett-Packard Company Heterodyne phase lock system
US4553264A (en) * 1982-09-17 1985-11-12 Matsushita Electric Industrial Co., Ltd. Double superheterodyne tuner
JPS6119261A (ja) * 1984-07-05 1986-01-28 Toshiba Corp 周波数変換回路
JPS6178250A (ja) * 1984-09-26 1986-04-21 Toshiba Corp 周波数変換回路

Also Published As

Publication number Publication date
US4918748A (en) 1990-04-17
EP0315940A3 (en) 1990-08-16
JP2528952B2 (ja) 1996-08-28
JPH01198832A (ja) 1989-08-10
EP0315940A2 (de) 1989-05-17
CA1294005C (en) 1992-01-07
EP0315940B1 (de) 1996-04-17
DE3855215D1 (de) 1996-05-23

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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

8328 Change in the person/name/address of the agent

Representative=s name: WITTE, WELLER & PARTNER, 70178 STUTTGART