GB2004427B - Arrangement in radar equipment for frequency locking a local oscillator - Google Patents
Arrangement in radar equipment for frequency locking a local oscillatorInfo
- Publication number
- GB2004427B GB2004427B GB7835728A GB7835728A GB2004427B GB 2004427 B GB2004427 B GB 2004427B GB 7835728 A GB7835728 A GB 7835728A GB 7835728 A GB7835728 A GB 7835728A GB 2004427 B GB2004427 B GB 2004427B
- Authority
- GB
- United Kingdom
- Prior art keywords
- arrangement
- local oscillator
- frequency locking
- radar equipment
- radar
- 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
Links
Classifications
-
- 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
- H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
- H03L7/12—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a scanning signal
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/28—Details of pulse systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7710219A SE410660B (en) | 1977-09-13 | 1977-09-13 | DEVICE IN A RADAR SYSTEM FOR LOADING A CONTROLLABLE LOCAL SCILLATOR FOR A RELEASED FREQUENCY BAND |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2004427A GB2004427A (en) | 1979-03-28 |
GB2004427B true GB2004427B (en) | 1982-01-13 |
Family
ID=20332241
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7835728A Expired GB2004427B (en) | 1977-09-13 | 1978-09-06 | Arrangement in radar equipment for frequency locking a local oscillator |
Country Status (7)
Country | Link |
---|---|
CH (1) | CH632849A5 (en) |
DE (1) | DE2838254A1 (en) |
FR (1) | FR2402879A1 (en) |
GB (1) | GB2004427B (en) |
IT (1) | IT1098640B (en) |
NL (1) | NL189434C (en) |
SE (1) | SE410660B (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB973800A (en) * | 1955-10-21 | 1964-10-28 | Sperry Rand Corp | Automatic frequency control systems |
FR1288134A (en) * | 1961-02-01 | 1962-03-24 | Cie Ind Des Telephones | Electronically controlled frequency scanning synthesizer |
US3142022A (en) * | 1961-06-07 | 1964-07-21 | Gen Precision Inc | Automatic frequency control and sweep circuit |
FR1483745A (en) * | 1965-12-08 | 1967-06-09 | Cit Alcatel | Universal frequency synthesizer |
FR1494257A (en) * | 1966-07-26 | 1967-09-08 | Cit Alcatel | Preset frequency synthesizer |
CH474909A (en) * | 1968-03-22 | 1969-06-30 | Siemens Ag Albis | Circuit arrangement for the automatic regulation of the frequency of an oscillator with respect to a reference frequency |
CH474910A (en) * | 1968-05-07 | 1969-06-30 | Siemens Ag Albis | Circuit arrangement for the automatic regulation of the frequency of an oscillator with respect to a reference frequency |
-
1977
- 1977-09-13 SE SE7710219A patent/SE410660B/en not_active IP Right Cessation
-
1978
- 1978-08-30 NL NLAANVRAGE7808929,A patent/NL189434C/en not_active IP Right Cessation
- 1978-09-01 DE DE19782838254 patent/DE2838254A1/en active Granted
- 1978-09-06 GB GB7835728A patent/GB2004427B/en not_active Expired
- 1978-09-07 FR FR7825740A patent/FR2402879A1/en active Granted
- 1978-09-11 CH CH948378A patent/CH632849A5/en not_active IP Right Cessation
- 1978-09-13 IT IT27615/78A patent/IT1098640B/en active
Also Published As
Publication number | Publication date |
---|---|
FR2402879A1 (en) | 1979-04-06 |
IT7827615A0 (en) | 1978-09-13 |
SE7710219L (en) | 1979-03-14 |
NL7808929A (en) | 1979-03-15 |
IT1098640B (en) | 1985-09-07 |
NL189434C (en) | 1993-04-01 |
FR2402879B1 (en) | 1983-10-28 |
NL189434B (en) | 1992-11-02 |
SE410660B (en) | 1979-10-22 |
CH632849A5 (en) | 1982-10-29 |
GB2004427A (en) | 1979-03-28 |
DE2838254A1 (en) | 1979-04-12 |
DE2838254C2 (en) | 1988-11-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Effective date: 19980905 |