IN152590B - - Google Patents
Info
- Publication number
- IN152590B IN152590B IN502/DEL/79A IN502DE1979A IN152590B IN 152590 B IN152590 B IN 152590B IN 502DE1979 A IN502DE1979 A IN 502DE1979A IN 152590 B IN152590 B IN 152590B
- Authority
- IN
- India
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
-
- 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
- G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
- G01S3/48—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being continuous or intermittent and the phase difference of signals derived therefrom being measured
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
- H01Q13/085—Slot-line radiating ends
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/960,243 US4203114A (en) | 1978-11-13 | 1978-11-13 | Digital bearing indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN152590B true IN152590B (sv) | 1984-02-18 |
Family
ID=25502977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN502/DEL/79A IN152590B (sv) | 1978-11-13 | 1979-07-12 |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4203114A (sv) |
| JP (1) | JPS5567667A (sv) |
| CA (1) | CA1135385A (sv) |
| CH (1) | CH651397A5 (sv) |
| DE (1) | DE2945259A1 (sv) |
| FR (1) | FR2441178A1 (sv) |
| GB (1) | GB2037116B (sv) |
| IL (1) | IL57910A (sv) |
| IN (1) | IN152590B (sv) |
| IT (1) | IT1124647B (sv) |
| NL (1) | NL7908029A (sv) |
| SE (1) | SE442787B (sv) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4528567A (en) * | 1981-08-10 | 1985-07-09 | Argo Systems, Inc. | Radio signal receiving system |
| DE3309784A1 (de) * | 1983-03-18 | 1984-09-20 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Doppler-drehfunkfeuer |
| GB2140238A (en) * | 1983-05-11 | 1984-11-21 | Racal Communications Equip | Direction finding |
| US6366627B1 (en) | 1983-09-28 | 2002-04-02 | Bae Systems Information And Electronic Systems Integration, Inc. | Compressive receiver with frequency expansion |
| US4641143A (en) * | 1983-09-28 | 1987-02-03 | Sanders Associates, Inc. | Two-dimensional acquisition system using circular array |
| US4604626A (en) * | 1983-11-21 | 1986-08-05 | Sanders Associates, Inc. | Acquisition system employing circular array |
| GB2169452B (en) * | 1985-01-04 | 1988-06-29 | Stc Plc | Optimization of convergence of sequential decorrelator |
| US4823137A (en) * | 1987-04-13 | 1989-04-18 | Mallick Brian C | Multiple-fixed-frequencies navigation system |
| US5691728A (en) * | 1996-03-25 | 1997-11-25 | Trw Inc. | Method and apparatus for bias error reductioon in an N-port modeformer of the butler matrix type |
| IL132803A (en) | 1999-11-08 | 2005-05-17 | Rafael Armament Dev Authority | All digital apparatus for bearing measurement of electromagnetic sources |
| DE10157109B4 (de) * | 2001-10-30 | 2011-01-13 | Rohde & Schwarz Gmbh & Co. Kg | Richtantennenanordnung und Verfahren zum Messen der Einstrahlrichtung zumindest einer eingestrahlten elektromagnetischen Welle |
| USH2109H1 (en) | 2002-04-03 | 2004-09-07 | The United States Of America As Represented By The Secretary Of The Air Force | Passive microwave direction finding with monobit fourier transformation receiver and matrix coupled antenna |
| US7277053B2 (en) * | 2004-09-08 | 2007-10-02 | Lucid Dimensions, Llc | Apparatus and methods for detecting and locating signals |
| US7576686B2 (en) * | 2006-08-07 | 2009-08-18 | Garmin International, Inc. | Method and system for calibrating an antenna array for an aircraft surveillance system |
| US7439901B2 (en) * | 2006-08-08 | 2008-10-21 | Garmin International, Inc. | Active phased array antenna for aircraft surveillance systems |
| US20080055150A1 (en) * | 2006-09-06 | 2008-03-06 | Garmin International, Inc. | Method and system for detecting and decoding air traffic control reply signals |
| US20080284637A1 (en) * | 2007-02-28 | 2008-11-20 | Garmin International, Inc. | Digital tas transmitter and receiver systems and methods |
| US7825858B2 (en) * | 2007-02-28 | 2010-11-02 | Garmin International, Inc. | Methods and systems for frequency independent bearing detection |
| US10809366B2 (en) | 2015-02-04 | 2020-10-20 | Artsys360 Ltd. | Multimodal radar system |
| US10571561B2 (en) | 2015-02-09 | 2020-02-25 | Artsys360 Ltd. | Aerial traffic monitoring radar |
| US10931315B2 (en) | 2018-04-13 | 2021-02-23 | Raytheon Company | Error correction coded binary array |
| EP3809526A1 (en) | 2019-10-18 | 2021-04-21 | Rohde & Schwarz GmbH & Co. KG | Antenna system and antenna controlling method |
| CN114814720B (zh) * | 2022-06-20 | 2022-09-30 | 成都市克莱微波科技有限公司 | 微波测向装置、系统、方法及存储介质 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3465342A (en) * | 1952-05-06 | 1969-09-02 | Bernard M Delapalme | Radio direction-finding receiver for the detection of radar apparatus |
| FR1603301A (sv) * | 1952-05-06 | 1971-04-05 | ||
| US2759154A (en) * | 1954-11-10 | 1956-08-14 | Sperry Rand Corp | Waveguide hybrid network for monopulse comparator |
| BE585365A (nl) * | 1958-12-11 | 1960-04-01 | Algemene Nl Radio Unie N V | Antennestelsel. |
| US3474446A (en) * | 1968-02-26 | 1969-10-21 | Itt | Cylindrical array antenna system with electronic scanning |
| DE2159977A1 (de) * | 1971-12-03 | 1973-06-07 | Krupp Gmbh | Schaltanordnung zur richtungsbestimmung einfallender wellenenergie, insbesondere von schallwellen, unter verwendung eines gradientenpeilsystems |
| DE2310242C2 (de) * | 1973-03-01 | 1981-09-24 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Anordnung zur gleichen Verstärkung von wenigstens zwei Hochfrequenzspannungen |
| US4103304A (en) * | 1973-04-20 | 1978-07-25 | Litton Systems, Inc. | Direction locating system |
| US3946395A (en) * | 1974-04-17 | 1976-03-23 | Kirchhoff C Edward | Radio direction finding apparatus |
| DE2543123A1 (de) * | 1975-09-26 | 1977-04-07 | Rohde & Schwarz | Schaltungsanordnung zum verbessern der peilempfindlichkeit von funkpeilern |
| DE2626671C2 (de) * | 1976-06-15 | 1984-01-19 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Mehrkanalpeilanordnung |
| DE2631008C2 (de) * | 1976-07-09 | 1982-12-30 | Rohde & Schwarz GmbH & Co KG, 8000 München | Dopplerpeiler |
-
1978
- 1978-11-13 US US05/960,243 patent/US4203114A/en not_active Ceased
-
1979
- 1979-07-12 IN IN502/DEL/79A patent/IN152590B/en unknown
- 1979-07-27 IL IL57910A patent/IL57910A/xx unknown
- 1979-09-19 SE SE7907755A patent/SE442787B/sv not_active IP Right Cessation
- 1979-10-01 CA CA000336707A patent/CA1135385A/en not_active Expired
- 1979-10-12 FR FR7925506A patent/FR2441178A1/fr active Granted
- 1979-10-17 GB GB7936104A patent/GB2037116B/en not_active Expired
- 1979-10-25 IT IT26789/79A patent/IT1124647B/it active
- 1979-11-01 JP JP14052879A patent/JPS5567667A/ja active Pending
- 1979-11-01 NL NL7908029A patent/NL7908029A/nl not_active Application Discontinuation
- 1979-11-09 DE DE19792945259 patent/DE2945259A1/de not_active Ceased
- 1979-11-12 CH CH10100/79A patent/CH651397A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NL7908029A (nl) | 1980-05-16 |
| US4203114A (en) | 1980-05-13 |
| GB2037116B (en) | 1982-11-24 |
| GB2037116A (en) | 1980-07-02 |
| DE2945259A1 (de) | 1980-07-24 |
| CH651397A5 (de) | 1985-09-13 |
| FR2441178B1 (sv) | 1984-03-16 |
| IL57910A (en) | 1981-11-30 |
| JPS5567667A (en) | 1980-05-21 |
| FR2441178A1 (fr) | 1980-06-06 |
| IT1124647B (it) | 1986-05-07 |
| IT7926789A0 (it) | 1979-10-25 |
| CA1135385A (en) | 1982-11-09 |
| IL57910A0 (en) | 1979-11-30 |
| SE7907755L (sv) | 1980-05-14 |
| SE442787B (sv) | 1986-01-27 |