BE520931A - - Google Patents
Info
- Publication number
- BE520931A BE520931A BE520931DA BE520931A BE 520931 A BE520931 A BE 520931A BE 520931D A BE520931D A BE 520931DA BE 520931 A BE520931 A BE 520931A
- 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
- 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
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/91—Radar or analogous systems specially adapted for specific applications for traffic control
- G01S13/913—Radar or analogous systems specially adapted for specific applications for traffic control for landing purposes
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL750327X | 1952-06-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE520931A true BE520931A (en:Method) |
Family
ID=19823409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE520931D BE520931A (en:Method) | 1952-06-25 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2831185A (en:Method) |
| BE (1) | BE520931A (en:Method) |
| DE (1) | DE947092C (en:Method) |
| FR (1) | FR1085968A (en:Method) |
| GB (1) | GB750327A (en:Method) |
| NL (2) | NL91417C (en:Method) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE967649C (de) * | 1953-08-14 | 1957-12-05 | Telefunken Gmbh | Verfahren zum Hervorheben einzelner Impulsanzeigen im oszillographischen Anzeigebildvon Impulsradargeraeten |
| US3049705A (en) * | 1960-04-01 | 1962-08-14 | Sperry Rand Corp | Position-selective call and identification system |
| US4764769A (en) * | 1983-10-19 | 1988-08-16 | Vega Precision Laboratories, Inc. | Position coded pulse communication system |
| DE3624143A1 (de) * | 1986-07-17 | 1988-01-21 | Standard Elektrik Lorenz Ag | Einrichtung zur freund-feind-identifikation |
| US5170168A (en) * | 1986-07-17 | 1992-12-08 | Standard Elektrik Lorenz Ag | Identification of friend from foe device |
| US5966226A (en) * | 1996-10-11 | 1999-10-12 | Oerlikon-Contraves Ag | Combat communication system |
| CN115857027B (zh) * | 2022-10-20 | 2024-07-23 | 深达威科技(广东)股份有限公司 | 一种管道测堵仪 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2547945A (en) * | 1944-01-29 | 1951-04-10 | Sperry Corp | System for conveying traffic data to aircraft |
| US2528202A (en) * | 1945-08-30 | 1950-10-31 | Rca Corp | Radio navigation system |
| US2513490A (en) * | 1947-02-28 | 1950-07-04 | Rca Corp | Selective communication system between ground station and a plurality of mobile stations |
-
0
- BE BE520931D patent/BE520931A/xx unknown
- NL NLAANVRAGE7711696,A patent/NL170603B/xx unknown
- NL NL91417D patent/NL91417C/xx active
-
1953
- 1953-06-11 US US360890A patent/US2831185A/en not_active Expired - Lifetime
- 1953-06-22 GB GB17220/53A patent/GB750327A/en not_active Expired
- 1953-06-23 DE DEN7363A patent/DE947092C/de not_active Expired
- 1953-06-23 FR FR1085968D patent/FR1085968A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL91417C (en:Method) | |
| NL170603B (nl) | |
| GB750327A (en) | 1956-06-13 |
| DE947092C (de) | 1956-08-09 |
| US2831185A (en) | 1958-04-15 |
| FR1085968A (fr) | 1955-02-08 |