AU457255B2 - A radio-navigation station - Google Patents
A radio-navigation stationInfo
- Publication number
- AU457255B2 AU457255B2 AU31135/71A AU3113571A AU457255B2 AU 457255 B2 AU457255 B2 AU 457255B2 AU 31135/71 A AU31135/71 A AU 31135/71A AU 3113571 A AU3113571 A AU 3113571A AU 457255 B2 AU457255 B2 AU 457255B2
- Authority
- AU
- Australia
- Prior art keywords
- radio
- navigation station
- navigation
- station
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
- H04B7/0822—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection according to predefined selection scheme
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
- H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FRFR70/2643 | 1970-07-17 | ||
FR7026433A FR2108146B1 (th) | 1970-07-17 | 1970-07-17 | |
FR7026432A FR2112029B1 (th) | 1970-07-17 | 1970-07-17 | |
FR7117979A FR2137312B2 (th) | 1970-07-17 | 1971-05-18 | |
FRFR71/1797 | 1971-05-18 | ||
FR7117978A FR2135115B2 (th) | 1970-07-17 | 1971-05-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU3113571A AU3113571A (en) | 1973-01-18 |
AU457255B2 true AU457255B2 (en) | 1975-01-23 |
Family
ID=27446069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU31135/71A Expired AU457255B2 (en) | 1970-07-17 | 1971-07-13 | A radio-navigation station |
Country Status (10)
Country | Link |
---|---|
US (1) | US3747101A (th) |
JP (1) | JPS5316677B1 (th) |
AU (1) | AU457255B2 (th) |
BE (1) | BE769039A (th) |
CA (1) | CA938354A (th) |
DE (1) | DE2135737C2 (th) |
GB (1) | GB1333804A (th) |
LU (1) | LU63543A1 (th) |
NL (1) | NL172187C (th) |
NO (1) | NO131692C (th) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5559756U (th) * | 1978-10-20 | 1980-04-23 | ||
JPH01141846U (th) * | 1988-03-25 | 1989-09-28 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2994081A (en) * | 1953-03-06 | 1961-07-25 | Edward C Jordan | Radio direction finder |
DE1123000B (de) * | 1958-07-16 | 1962-02-01 | Standard Elektrik Lorenz Ag | Anordnung zur drahtlosen Richtungsbestimmung auf Grund des Dopplereffektes |
-
1971
- 1971-06-25 BE BE769039A patent/BE769039A/xx not_active IP Right Cessation
- 1971-06-30 US US00158486A patent/US3747101A/en not_active Expired - Lifetime
- 1971-07-08 GB GB3223471A patent/GB1333804A/en not_active Expired
- 1971-07-13 AU AU31135/71A patent/AU457255B2/en not_active Expired
- 1971-07-14 JP JP5283971A patent/JPS5316677B1/ja active Pending
- 1971-07-15 LU LU63543D patent/LU63543A1/xx unknown
- 1971-07-16 NO NO2738/71A patent/NO131692C/no unknown
- 1971-07-16 CA CA118476A patent/CA938354A/en not_active Expired
- 1971-07-16 DE DE2135737A patent/DE2135737C2/de not_active Expired
- 1971-07-16 NL NLAANVRAGE7109881,A patent/NL172187C/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JPS5316677B1 (th) | 1978-06-02 |
CA938354A (en) | 1973-12-11 |
NL7109881A (th) | 1972-01-19 |
DE2135737C2 (de) | 1982-09-09 |
AU3113571A (en) | 1973-01-18 |
LU63543A1 (th) | 1971-11-16 |
DE2135737A1 (de) | 1972-01-20 |
BE769039A (fr) | 1971-11-03 |
NO131692C (th) | 1975-07-09 |
US3747101A (en) | 1973-07-17 |
NL172187C (nl) | 1983-07-18 |
GB1333804A (en) | 1973-10-17 |
NO131692B (th) | 1975-04-01 |
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