BE510950A - - Google Patents
Info
- Publication number
- BE510950A BE510950A BE510950DA BE510950A BE 510950 A BE510950 A BE 510950A BE 510950D A BE510950D A BE 510950DA BE 510950 A BE510950 A BE 510950A
- 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
-
- 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)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB33329/49A GB678389A (en) | 1949-12-30 | 1949-12-30 | Improvements in or relating to radio altimeters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE510950A true BE510950A (da) |
Family
ID=10351531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE510950D BE510950A (da) | 1949-12-30 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2686302A (da) |
| BE (1) | BE510950A (da) |
| CH (1) | CH303316A (da) |
| FR (1) | FR1066086A (da) |
| GB (1) | GB678389A (da) |
| NL (1) | NL167492B (da) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB745269A (en) * | 1953-09-25 | 1956-02-22 | Raytheon Mfg Co | Improvements in or relating to antenna systems and mounting means therefor |
| US3065465A (en) * | 1958-04-25 | 1962-11-20 | Raytheon Co | Distance measuring devices |
| FR2606159B1 (fr) * | 1986-10-31 | 1989-03-24 | Trt Telecom Radio Electr | Dispositif radar pour mesurer la distance qui le separe d'un objet |
| US9116239B1 (en) * | 2013-01-14 | 2015-08-25 | Rockwell Collins, Inc. | Low range altimeter antenna |
| CN113965277B (zh) * | 2021-11-05 | 2024-05-10 | 江西洪都航空工业集团有限责任公司 | 在密闭环境下对无线电测高表的测试方法、装置及系统 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2247662A (en) * | 1938-11-16 | 1941-07-01 | Bell Telephone Labor Inc | Radiant energy distance measuring system |
| US2423644A (en) * | 1939-05-19 | 1947-07-08 | Rca Corp | Range finder |
| US2222587A (en) * | 1939-06-16 | 1940-11-19 | Rca Corp | Radio altimeter |
| US2261272A (en) * | 1940-08-07 | 1941-11-04 | Bell Telephone Labor Inc | Radiant energy distance measuring system |
| US2422133A (en) * | 1942-12-30 | 1947-06-10 | Rca Corp | Frequency modulated altimeter or distance indicator |
| US2557864A (en) * | 1945-12-05 | 1951-06-19 | Raytheon Mfg Co | Object-locating radio system |
| US2510710A (en) * | 1947-02-07 | 1950-06-06 | Rca Corp | Balanced detector system for radar apparatus |
| US2568090A (en) * | 1948-06-22 | 1951-09-18 | Raytheon Mfg Co | Balanced mixer |
-
0
- NL NL7708770.A patent/NL167492B/xx unknown
- BE BE510950D patent/BE510950A/xx unknown
-
1949
- 1949-12-30 GB GB33329/49A patent/GB678389A/en not_active Expired
-
1950
- 1950-12-29 US US203250A patent/US2686302A/en not_active Expired - Lifetime
-
1952
- 1952-04-01 FR FR1066086D patent/FR1066086A/fr not_active Expired
- 1952-04-18 CH CH303316D patent/CH303316A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US2686302A (en) | 1954-08-10 |
| NL167492B (nl) | |
| CH303316A (fr) | 1954-11-30 |
| FR1066086A (fr) | 1954-06-02 |
| GB678389A (en) | 1952-09-03 |