BE473177A - - Google Patents
Info
- Publication number
- BE473177A BE473177A BE473177DA BE473177A BE 473177 A BE473177 A BE 473177A BE 473177D A BE473177D A BE 473177DA BE 473177 A BE473177 A BE 473177A
- Authority
- BE
- Belgium
Links
Classifications
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- 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
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- 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)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US591041XA | 1944-05-01 | 1944-05-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE473177A true BE473177A (de) |
Family
ID=22020880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE473177D BE473177A (de) | 1944-05-01 |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE473177A (de) |
FR (1) | FR944347A (de) |
GB (1) | GB591041A (de) |
-
0
- BE BE473177D patent/BE473177A/xx unknown
-
1945
- 1945-04-27 GB GB10725/45A patent/GB591041A/en not_active Expired
-
1947
- 1947-02-22 FR FR944347D patent/FR944347A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB591041A (en) | 1947-08-05 |
FR944347A (fr) | 1949-04-01 |