DE69021074T2 - Phasenregelschleife zur herstellung eines referenzträgers für einen kohärenten detektor. - Google Patents
Phasenregelschleife zur herstellung eines referenzträgers für einen kohärenten detektor.Info
- Publication number
- DE69021074T2 DE69021074T2 DE69021074T DE69021074T DE69021074T2 DE 69021074 T2 DE69021074 T2 DE 69021074T2 DE 69021074 T DE69021074 T DE 69021074T DE 69021074 T DE69021074 T DE 69021074T DE 69021074 T2 DE69021074 T2 DE 69021074T2
- Authority
- DE
- Germany
- Prior art keywords
- production
- control loop
- phase control
- reference carrier
- coherent detector
- 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
Links
- 230000001427 coherent effect Effects 0.000 title 1
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
- H03C3/0966—Modifications of modulator for regulating the mean frequency using a phase locked loop modulating the reference clock
-
- 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
- H03C3/0941—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation at more than one point in the 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
- H03C3/095—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation to the loop in front of the voltage controlled oscillator
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
- H03D1/22—Homodyne or synchrodyne circuits
- H03D1/2281—Homodyne or synchrodyne circuits using a 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
- H03L7/08—Details of the phase-locked loop
- H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
- H03L7/087—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using at least two phase detectors or a frequency and phase detector in the 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
- H03L7/22—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop
- H03L7/23—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using more than one loop with pulse counters or frequency dividers
- H03L7/235—Nested phase locked loops
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI895068A FI895068A0 (fi) | 1989-10-25 | 1989-10-25 | Frekvenssyntetisator. |
PCT/FI1990/000248 WO1991007016A1 (en) | 1989-10-25 | 1990-10-19 | A phase locked loop for producing a reference carrier for a coherent detector |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69021074D1 DE69021074D1 (de) | 1995-08-24 |
DE69021074T2 true DE69021074T2 (de) | 1996-03-07 |
Family
ID=8529219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69021074T Expired - Fee Related DE69021074T2 (de) | 1989-10-25 | 1990-10-19 | Phasenregelschleife zur herstellung eines referenzträgers für einen kohärenten detektor. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0497801B1 (de) |
JP (1) | JP2971134B2 (de) |
DE (1) | DE69021074T2 (de) |
FI (1) | FI895068A0 (de) |
WO (1) | WO1991007016A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4125995A1 (de) * | 1991-06-08 | 1992-12-10 | Licentia Gmbh | Empfaengeranordnung |
US5329250A (en) * | 1992-02-25 | 1994-07-12 | Sanyo Electric Co., Ltd. | Double phase locked loop circuit |
US5737694A (en) * | 1995-11-30 | 1998-04-07 | Scientific-Atlanta, Inc. | Highly stable frequency synthesizer loop with feedforward |
FI105425B (fi) * | 1998-07-31 | 2000-08-15 | Nokia Networks Oy | Kellotaajuuksien generointi |
DE10205044A1 (de) * | 2002-02-07 | 2003-08-21 | Philips Intellectual Property | Digitaler Phase Locked Loop |
US7675369B2 (en) | 2006-06-12 | 2010-03-09 | Honeywell International Inc. | Frequency hopping oscillator circuit |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4074209A (en) * | 1976-12-13 | 1978-02-14 | Rca Corporation | Wide range frequency modulation of narrow loop bandwidth phase-locked oscillators |
US4321706A (en) * | 1980-07-14 | 1982-03-23 | John Fluke Mfg. Co., Inc. | Frequency modulated phase-locked loop signal source |
US4785260A (en) * | 1986-03-18 | 1988-11-15 | International Mobile Machines Corporation | Frequency synthesizer for broadcast telephone system having multiple assignable frequency channels |
-
1989
- 1989-10-25 FI FI895068A patent/FI895068A0/fi not_active Application Discontinuation
-
1990
- 1990-10-19 DE DE69021074T patent/DE69021074T2/de not_active Expired - Fee Related
- 1990-10-19 JP JP2514262A patent/JP2971134B2/ja not_active Expired - Lifetime
- 1990-10-19 EP EP90915315A patent/EP0497801B1/de not_active Expired - Lifetime
- 1990-10-19 WO PCT/FI1990/000248 patent/WO1991007016A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
EP0497801B1 (de) | 1995-07-19 |
JPH05503613A (ja) | 1993-06-10 |
DE69021074D1 (de) | 1995-08-24 |
EP0497801A1 (de) | 1992-08-12 |
FI895068A0 (fi) | 1989-10-25 |
WO1991007016A1 (en) | 1991-05-16 |
JP2971134B2 (ja) | 1999-11-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |