BE440372A - - Google Patents
Info
- Publication number
- BE440372A BE440372A BE440372DA BE440372A BE 440372 A BE440372 A BE 440372A BE 440372D A BE440372D A BE 440372DA BE 440372 A BE440372 A BE 440372A
- 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
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
- G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
- G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
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 |
|---|---|---|---|
| NL661177X | 1939-06-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE440372A true BE440372A (cs) | 1941-02-28 |
Family
ID=19797458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE440372D BE440372A (cs) | 1939-06-23 | 1941-01-22 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE440372A (cs) |
| FR (1) | FR870146A (cs) |
| GB (1) | GB661177A (cs) |
-
1941
- 1941-01-22 BE BE440372D patent/BE440372A/xx unknown
- 1941-02-18 FR FR870146D patent/FR870146A/fr not_active Expired
-
1947
- 1947-12-31 GB GB35191/47A patent/GB661177A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR870146A (fr) | 1942-03-04 |
| GB661177A (en) | 1951-11-21 |