DE3855215D1 - 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 AbstimmungInfo
- Publication number
- DE3855215D1 DE3855215D1 DE3855215T DE3855215T DE3855215D1 DE 3855215 D1 DE3855215 D1 DE 3855215D1 DE 3855215 T DE3855215 T DE 3855215T DE 3855215 T DE3855215 T DE 3855215T DE 3855215 D1 DE3855215 D1 DE 3855215D1
- 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
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)
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 true DE3855215D1 (de) | 1996-05-23 |
DE3855215T2 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)
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 |
US6377315B1 (en) * | 1998-11-12 | 2002-04-23 | Broadcom Corporation | System and method for providing a low power receiver design |
US7124043B2 (en) * | 2004-09-20 | 2006-10-17 | Guzik Technical Enterprises | Spectrum analyzer with phase noise compensation |
US20100244903A1 (en) * | 2007-11-28 | 2010-09-30 | Bae Systems Plc | Tuneable 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)
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 |
-
1987
- 1987-11-09 US US07/118,902 patent/US4918748A/en not_active Expired - Fee Related
-
1988
- 1988-11-08 DE DE3855215T patent/DE3855215T2/de not_active Expired - Lifetime
- 1988-11-08 EP EP88118549A patent/EP0315940B1/de not_active Expired - Lifetime
- 1988-11-08 CA CA000582552A patent/CA1294005C/en not_active Expired - Lifetime
- 1988-11-09 JP JP63281509A patent/JP2528952B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE3855215T2 (de) | 1996-12-12 |
EP0315940A2 (de) | 1989-05-17 |
US4918748A (en) | 1990-04-17 |
JPH01198832A (ja) | 1989-08-10 |
EP0315940B1 (de) | 1996-04-17 |
EP0315940A3 (en) | 1990-08-16 |
CA1294005C (en) | 1992-01-07 |
JP2528952B2 (ja) | 1996-08-28 |
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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 |