BE474208A - - Google Patents
Info
- Publication number
- BE474208A BE474208A BE474208DA BE474208A BE 474208 A BE474208 A BE 474208A BE 474208D A BE474208D A BE 474208DA BE 474208 A BE474208 A BE 474208A
- 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
- 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
- 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
- G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
- G01S1/24—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being pulses or equivalent modulations on carrier waves and the transit times being compared by measuring the difference in arrival time of a significant part of the modulations, e.g. LORAN systems
-
- 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
- G01S13/003—Bistatic radar systems; Multistatic radar systems
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US623188XA | 1945-05-14 | 1945-05-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE474208A true BE474208A (US20030199744A1-20031023-C00003.png) |
Family
ID=22041704
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE474208D BE474208A (US20030199744A1-20031023-C00003.png) | 1945-05-14 | ||
BE623188A BE623188A (fr) | 1961-10-04 | 1962-10-03 | Tétrafluodichloroisopropanol et sa préparation par hydrogénation de la tétrafluorodichloroacétone. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE623188A BE623188A (fr) | 1961-10-04 | 1962-10-03 | Tétrafluodichloroisopropanol et sa préparation par hydrogénation de la tétrafluorodichloroacétone. |
Country Status (4)
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2242328B (en) * | 1983-10-06 | 1991-12-11 | Ferranti Plc | Radar system |
GB2155720B (en) * | 1984-03-08 | 1987-10-21 | Standard Telephones Cables Ltd | Vehicle location system |
-
0
- BE BE474208D patent/BE474208A/xx unknown
-
1946
- 1946-04-18 GB GB12050/46A patent/GB623188A/en not_active Expired
-
1947
- 1947-07-16 CH CH279935D patent/CH279935A/fr unknown
- 1947-08-06 FR FR57761D patent/FR57761E/fr not_active Expired
- 1947-12-04 GB GB32036/47A patent/GB642761A/en not_active Expired
-
1962
- 1962-10-03 BE BE623188A patent/BE623188A/fr unknown
Also Published As
Publication number | Publication date |
---|---|
GB623188A (en) | 1949-05-13 |
FR57761E (fr) | 1953-09-09 |
CH279935A (fr) | 1951-12-31 |
GB642761A (en) | 1950-09-13 |
BE623188A (fr) | 1963-02-01 |