BE515175A - - Google Patents
Info
- Publication number
- BE515175A BE515175A BE515175DA BE515175A BE 515175 A BE515175 A BE 515175A BE 515175D A BE515175D A BE 515175DA BE 515175 A BE515175 A BE 515175A
- Authority
- BE
- Belgium
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
- G01S3/52—Systems for determining direction or deviation from predetermined direction using a receiving antenna moving, or appearing to move, in a cyclic path to produce a Doppler variation of frequency of the received signal
- G01S3/54—Systems for determining direction or deviation from predetermined direction using a receiving antenna moving, or appearing to move, in a cyclic path to produce a Doppler variation of frequency of the received signal the apparent movement of the antenna being produced by coupling the receiver cyclically and sequentially to each of several fixed spaced antennas
-
- 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)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB314679X | 1951-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE515175A true BE515175A (US08088918-20120103-C00476.png) |
Family
ID=10323528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE515175D BE515175A (US08088918-20120103-C00476.png) | 1951-10-29 |
Country Status (6)
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2938208A (en) * | 1955-01-05 | 1960-05-24 | Itt | Omnirange beacon antenna having rotating parasitic conductive elements |
| US2973514A (en) * | 1955-11-04 | 1961-02-28 | Alford Andrew | Parallel plate transmission line antenna |
| US2912688A (en) * | 1957-06-18 | 1959-11-10 | Itt | Test set |
| DE2842692A1 (de) * | 1978-09-30 | 1980-04-10 | Licentia Gmbh | Peilverfahren fuer einkanal-peilsystem |
| JPH03205901A (ja) * | 1989-10-26 | 1991-09-09 | Toshiba Corp | 電気機械装置 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2297395A (en) * | 1936-05-14 | 1942-09-29 | Erben Dietrich | Radio direction finding system |
| US2279466A (en) * | 1938-09-20 | 1942-04-14 | Telefunken Gmbh | Radio direction finder |
| FR890823A (fr) * | 1941-07-24 | 1944-02-18 | Fides Gmbh | Perfectionnements aux dispositifs de guidage des véhicules et, en particulier, des avions, au moyen d'impulsions |
| BE455855A (US08088918-20120103-C00476.png) * | 1943-04-12 | |||
| US2572041A (en) * | 1947-10-29 | 1951-10-23 | Sperry Corp | Selective azimuth signaling system |
| US2564703A (en) * | 1947-10-29 | 1951-08-21 | Sperry Corp | Omni-azimuth guidance system |
| US2565506A (en) * | 1949-07-26 | 1951-08-28 | Sperry Corp | Omnidirectional radio range system |
-
0
- BE BE515175D patent/BE515175A/xx unknown
- NL NL93299D patent/NL93299C/xx active
-
1951
- 1951-10-29 GB GB25225/51A patent/GB694549A/en not_active Expired
-
1952
- 1952-09-25 US US311435A patent/US2717379A/en not_active Expired - Lifetime
- 1952-10-23 DE DEI6491A patent/DE962988C/de not_active Expired
- 1952-10-29 CH CH314679D patent/CH314679A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE962988C (de) | 1957-05-02 |
| US2717379A (en) | 1955-09-06 |
| NL93299C (US08088918-20120103-C00476.png) | |
| CH314679A (de) | 1956-06-30 |
| GB694549A (en) | 1953-07-22 |
