NL7213604A - - Google Patents
Info
- Publication number
- NL7213604A NL7213604A NL7213604A NL7213604A NL7213604A NL 7213604 A NL7213604 A NL 7213604A NL 7213604 A NL7213604 A NL 7213604A NL 7213604 A NL7213604 A NL 7213604A NL 7213604 A NL7213604 A NL 7213604A
- Authority
- NL
- Netherlands
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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
- G01S13/78—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe
-
- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/42—Simultaneous measurement of distance and other co-ordinates
-
- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
- G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
- G01S13/765—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted with exchange of information between interrogator and responder
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar Systems Or Details Thereof (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4699471 | 1971-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7213604A true NL7213604A (https=) | 1973-04-10 |
Family
ID=10443341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7213604A NL7213604A (https=) | 1971-10-08 | 1972-10-06 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3852753A (https=) |
| DE (1) | DE2249386C3 (https=) |
| FR (1) | FR2156188B1 (https=) |
| GB (1) | GB1347309A (https=) |
| NL (1) | NL7213604A (https=) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1499327A (en) * | 1974-07-30 | 1978-02-01 | Standard Telephones Cables Ltd | Radio navigation beacon |
| GB1493732A (en) * | 1975-07-24 | 1977-11-30 | Standard Telephones Cables Ltd | Radio direction finding equipment |
| JPS60165566A (ja) * | 1984-02-08 | 1985-08-28 | Mitsubishi Electric Corp | レ−ダ装置 |
| GB2214748A (en) * | 1988-01-22 | 1989-09-06 | Marconi Gec Ltd | Bearing measurement |
| FR2747789B1 (fr) * | 1991-05-29 | 1998-11-13 | Onera (Off Nat Aerospatiale) | Dispositif de retrodiffusion pour systemes radar a conjugaison de phase et decouplage frequentiel |
| DE19512787A1 (de) * | 1995-02-19 | 1996-09-12 | Horn Wolfgang | Ortungssystem mit synthetischer Apertur |
| US7397427B1 (en) | 2005-09-28 | 2008-07-08 | Kevin G. Rhoads Engineering, Inc. | Phase event detection and direction of arrival estimation |
| US9535151B2 (en) | 2011-12-28 | 2017-01-03 | Hrl Laboratories, Llc | Coded aperture beam analysis method and apparatus |
| US20130169471A1 (en) * | 2011-12-28 | 2013-07-04 | Hrl Laboratories, Llc | Coded aperture beam analysis method and apparatus |
| US9658321B2 (en) | 2012-06-07 | 2017-05-23 | Hrl Laboratories, Llc | Method and apparatus for reducing noise in a coded aperture radar |
| EP3809526A1 (en) | 2019-10-18 | 2021-04-21 | Rohde & Schwarz GmbH & Co. KG | Antenna system and antenna controlling method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB900924A (en) * | 1958-03-17 | 1962-07-11 | Nat Res Dev | New or improved method of radio scanning |
| US2992384A (en) * | 1959-07-06 | 1961-07-11 | Thompson Ramo Wooldridge Inc | Frequency counter |
| US3295138A (en) * | 1963-10-31 | 1966-12-27 | Sylvania Electric Prod | Phased array system |
| US3449711A (en) * | 1965-08-30 | 1969-06-10 | Magnavox Co | Beam former |
| US3370267A (en) * | 1965-10-23 | 1968-02-20 | Hughes Aircraft Co | Beam forming system |
| US3657693A (en) * | 1965-11-15 | 1972-04-18 | Control Data Corp | Multiple beam scanned planar array |
| FR2049666A5 (https=) * | 1969-06-16 | 1971-03-26 | Cit Alcatel | |
| US3716853A (en) * | 1969-11-13 | 1973-02-13 | Itek Corp | Airborne radar detecting and recording system |
| BE759259A (fr) * | 1969-11-24 | 1971-05-24 | Int Standard Electric Corp | Procede de mesure de frequence |
-
1971
- 1971-10-08 GB GB4699471A patent/GB1347309A/en not_active Expired
-
1972
- 1972-10-06 NL NL7213604A patent/NL7213604A/xx not_active Application Discontinuation
- 1972-10-06 US US29571272 patent/US3852753A/en not_active Expired - Lifetime
- 1972-10-09 FR FR7235736A patent/FR2156188B1/fr not_active Expired
- 1972-10-09 DE DE2249386A patent/DE2249386C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3852753A (en) | 1974-12-03 |
| DE2249386C3 (de) | 1975-07-03 |
| DE2249386B2 (de) | 1974-11-07 |
| GB1347309A (en) | 1974-02-27 |
| FR2156188A1 (https=) | 1973-05-25 |
| FR2156188B1 (https=) | 1977-04-01 |
| DE2249386A1 (de) | 1973-04-26 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BA | A request for search or an international-type search has been filed | ||
| BB | A search report has been drawn up | ||
| BC | A request for examination has been filed | ||
| BV | The patent application has lapsed |