GB1154501A - Improvements in or relating to Radio Direction Finders - Google Patents
Improvements in or relating to Radio Direction FindersInfo
- Publication number
- GB1154501A GB1154501A GB1810662A GB1810662A GB1154501A GB 1154501 A GB1154501 A GB 1154501A GB 1810662 A GB1810662 A GB 1810662A GB 1810662 A GB1810662 A GB 1810662A GB 1154501 A GB1154501 A GB 1154501A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crt
- spot
- auxiliary oscillator
- frequency
- radio direction
- 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
-
- 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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
- G01S3/143—Systems for determining direction or deviation from predetermined direction by vectorial combination of signals derived from differently oriented antennae
-
- 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
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar Systems Or Details Thereof (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
1,154,501. Radio direction-finding. TELEFUNKEN PATENTVERWERTUNGS - G.m.b.H. 10 May, 1962 [10 May, 1961], No. 18106/62. Heading H4D. In a radio direction finding antenna system, a number of identical horn antennµ are mounted in a circle, with their polar diagrams directed radially outwards and overlapping. In one embodiment, the antennµ feed into a common load resistor through modulators each of which has a second input supplied from a phaseshifter energized from a common auxiliary oscillator, each second input being 45 degree phase displaced with respect to the adjacent inputs. The output from the common load is taken to a phase splitting device and next through two sampling devices, controlled from the auxiliary oscillator, to the mutually perpendicular deflection systems of a CRT display unit. The angular position of the display spot in the CRT screen is a function of the bearing of the received signal. The radial distance of the spot from the screen centre is a function of the signal field strength. In a second embodiment, both the frequency of the received signal as well as the target direction are displayed. In this case, the received signals at the load resistor control the sampling devices and the quadrature CRT deflecting voltages are of constant amplitude and are supplied by the auxiliary oscillator. When the output of the latter is amplitude modulated in accordance with the incident signal frequency, the distance of the display spot from the CRT centre is a measure of this modulation frequency.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1961T0020139 DE977793C (en) | 1961-05-10 | 1961-05-10 | Procedure for direction finding in pulsed signals |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1154501A true GB1154501A (en) | 1969-06-11 |
Family
ID=7549592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1810662A Expired GB1154501A (en) | 1961-05-10 | 1962-05-10 | Improvements in or relating to Radio Direction Finders |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE977793C (en) |
FR (1) | FR1573805A (en) |
GB (1) | GB1154501A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2492536A1 (en) * | 1980-10-20 | 1982-04-23 | Taiyo Musen Co Ltd | ANTENNA SYSTEM FOR DIRECTION INDICATOR OR RADIOGONIOMETER |
EP2454603A1 (en) * | 2009-07-16 | 2012-05-23 | Satworld Holding B.V. | Locating device for locating an object, and a system of a locating device and an object |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3436104A1 (en) * | 1984-10-02 | 1986-04-10 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Direction-finding arrangement and direction-finding method |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE977785C (en) * | 1960-11-25 | 1970-03-26 | Telefunken Patent | Direction finder for impulsive signals |
-
1961
- 1961-05-10 DE DE1961T0020139 patent/DE977793C/en not_active Expired
-
1962
- 1962-04-18 FR FR1573805D patent/FR1573805A/fr not_active Expired
- 1962-05-10 GB GB1810662A patent/GB1154501A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2492536A1 (en) * | 1980-10-20 | 1982-04-23 | Taiyo Musen Co Ltd | ANTENNA SYSTEM FOR DIRECTION INDICATOR OR RADIOGONIOMETER |
EP2454603A1 (en) * | 2009-07-16 | 2012-05-23 | Satworld Holding B.V. | Locating device for locating an object, and a system of a locating device and an object |
EP2454603B1 (en) * | 2009-07-16 | 2017-04-19 | Prazza B.V. | Locating device for locating an object, and a system of a locating device and an object |
Also Published As
Publication number | Publication date |
---|---|
FR1573805A (en) | 1969-07-11 |
DE977793C (en) | 1970-05-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB810975A (en) | Improvements in or relating to radio antennae systems | |
GB655086A (en) | Improvements in or relating to aircraft control system | |
GB1432933A (en) | Guidance and control system for target-seeking devices | |
GB1387579A (en) | Doppler radar systems | |
US3155972A (en) | Continuous wave radar | |
GB1154501A (en) | Improvements in or relating to Radio Direction Finders | |
GB965326A (en) | Tactical radio landing system | |
US2862204A (en) | Counter measure system | |
US2520595A (en) | Visual indicator of distance between two points and the bearing of a line connectingthem | |
GB945613A (en) | Improvements in guidance systems for missiles and other moving bodies | |
US2476977A (en) | Radio direction finder | |
US3886556A (en) | Multichannel direction finding receiver system | |
GB1077938A (en) | Signal compression apparatus | |
US2754493A (en) | Indicator for sound direction finder | |
US3478360A (en) | Converter for vhf-omnirange (vor) receiver | |
GB577824A (en) | Improvements relating to radio navigational and radio location systems | |
GB1300105A (en) | Monopulse radar apparatus | |
US3971019A (en) | Receiver apparatus | |
GB503471A (en) | Improvements in or relating to navigation aiding radio receiving systems | |
US3197775A (en) | Doppler tracking system with real time presentation of missile trajectory deviation | |
US2418308A (en) | Radio direction finder | |
US3503071A (en) | Radio navigation system | |
GB1512675A (en) | Radar apparatus | |
US3328794A (en) | Radar system for determining the relative direction of two objects moving in space | |
GB1327191A (en) | Radar systems |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
CSNS | Application of which complete specification have been accepted and published, but patent is not sealed |