BE624593A - - Google Patents
Info
- Publication number
- BE624593A BE624593A BE624593DA BE624593A BE 624593 A BE624593 A BE 624593A BE 624593D A BE624593D A BE 624593DA BE 624593 A BE624593 A BE 624593A
- 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
- 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
- G01S1/08—Systems for determining direction or position line
- G01S1/38—Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna
- G01S1/40—Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna the apparent movement of the antenna being produced by cyclic sequential energisation of fixed antennas
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Traffic Control Systems (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB40393/61A GB1021551A (en) | 1961-11-10 | 1961-11-10 | Radio navigation system |
Publications (1)
Publication Number | Publication Date |
---|---|
BE624593A true BE624593A (de) |
Family
ID=10414678
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE624593D BE624593A (de) | 1961-11-10 |
Country Status (7)
Country | Link |
---|---|
US (1) | US3234554A (de) |
BE (1) | BE624593A (de) |
CH (1) | CH420289A (de) |
DE (1) | DE1249361B (de) |
GB (1) | GB1021551A (de) |
NL (1) | NL285388A (de) |
SE (1) | SE320710B (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE636626A (de) * | 1962-08-27 | |||
DE1237647B (de) * | 1963-03-09 | 1967-03-30 | Standard Elektrik Lorenz Ag | Allrichtungs-Funkortungsverfahren nach dem Dopplerprinzip |
US3412405A (en) * | 1964-09-14 | 1968-11-19 | Motorola Inc | Side lobe response reducing system |
US3383689A (en) * | 1964-11-11 | 1968-05-14 | Japan Broadcasting Corp | Directional wave receiving system |
GB1225190A (de) * | 1968-09-23 | 1971-03-17 | ||
GB1234541A (de) * | 1969-02-05 | 1971-06-03 | ||
GB1236141A (en) * | 1969-03-07 | 1971-06-23 | Standard Telephones Cables Ltd | Radio navigation system |
BE759259A (fr) * | 1969-11-24 | 1971-05-24 | Int Standard Electric Corp | Procede de mesure de frequence |
US3798645A (en) * | 1970-08-28 | 1974-03-19 | Hazeltine Corp | Angular position determining systems using time scanned arrays |
US3704465A (en) * | 1970-08-28 | 1972-11-28 | Hazeltine Corp | Angular position determining system compensated for doppler |
GB1335899A (en) * | 1971-08-20 | 1973-10-31 | Standard Telephones Cables Ltd | Radio navigation beacon |
GB2124849A (en) * | 1982-07-29 | 1984-02-22 | David Arthur Tong | Direction finding systems |
US4912479A (en) * | 1986-03-26 | 1990-03-27 | Nec Corporation | Microwave landing system |
WO1988009938A1 (en) * | 1987-06-05 | 1988-12-15 | The Secretary Of State For Defence In Her Britanni | Method and apparatus for processing synthetic aperture aerial signals |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2422333A (en) * | 1942-10-19 | 1947-06-17 | Rca Corp | Pulse-echo control system |
-
0
- BE BE624593D patent/BE624593A/xx unknown
- NL NL285388D patent/NL285388A/xx unknown
- DE DENDAT1249361D patent/DE1249361B/de active Pending
-
1961
- 1961-11-10 GB GB40393/61A patent/GB1021551A/en not_active Expired
-
1962
- 1962-10-30 US US234091A patent/US3234554A/en not_active Expired - Lifetime
- 1962-11-06 CH CH1294162A patent/CH420289A/de unknown
- 1962-11-09 SE SE12044/62A patent/SE320710B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DE1249361B (de) | |
SE320710B (de) | 1970-02-16 |
US3234554A (en) | 1966-02-08 |
CH420289A (de) | 1966-09-15 |
NL285388A (de) | |
GB1021551A (en) | 1966-03-02 |