NL221802A - - Google Patents
Info
- Publication number
- NL221802A NL221802A NL221802DA NL221802A NL 221802 A NL221802 A NL 221802A NL 221802D A NL221802D A NL 221802DA NL 221802 A NL221802 A NL 221802A
- Authority
- NL
- Netherlands
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
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
-
- 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
- G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
- G01S13/24—Systems for measuring distance only using transmission of interrupted, pulse modulated waves using frequency agility of carrier wave
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/36—Means for anti-jamming, e.g. ECCM, i.e. electronic counter-counter measures
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/42—Diversity systems specially adapted for radar
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/12—Frequency diversity
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1055061X | 1956-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL221802A true NL221802A (de) |
Family
ID=9596718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL221802D NL221802A (de) | 1956-11-02 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3015819A (de) |
| DE (1) | DE1055061B (de) |
| FR (1) | FR1160472A (de) |
| GB (1) | GB832649A (de) |
| NL (1) | NL221802A (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE978031C (de) * | 1961-11-29 | 1975-11-06 | Telefunken Patentverwertungsgesellschaft Mbh, 7900 Ulm | Funk-AnnäherungszUnder |
| US3378838A (en) * | 1966-12-12 | 1968-04-16 | Selenia Ind Elettroniche | System for metering the nonambiguous speeds of the targets by means of radar employing two operative frequencies and a coherent memory filter |
| US4155088A (en) * | 1967-02-20 | 1979-05-15 | Westinghouse Electric Corp. | Dual frequency transmission apparatus for frequency-agile radar systems utilizing MTI techniques |
| ES2049621B1 (es) * | 1991-11-15 | 1998-05-01 | Alaveses Explosivos | Espoleta de proximidad. |
| US6486827B2 (en) * | 2001-04-18 | 2002-11-26 | Raytheon Company | Sparse frequency waveform radar system and method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB566785A (en) * | 1941-04-11 | 1945-01-15 | Standard Telephones Cables Ltd | Improvements in or relating to radio communication systems |
| US2543449A (en) * | 1945-05-17 | 1951-02-27 | Alfred G Emslie | Radio pulse-echo moving object detection system |
| US2658195A (en) * | 1945-10-19 | 1953-11-03 | Robert A Mcconnell | Moving target indicating radar system |
| DE1074675B (de) * | 1956-07-30 | 1960-02-04 | Bendix Aviation Corporation, New York, N. Y. (V. St. A.) |
-
0
- NL NL221802D patent/NL221802A/xx unknown
-
1956
- 1956-11-02 FR FR1160472D patent/FR1160472A/fr not_active Expired
-
1957
- 1957-10-09 US US689224A patent/US3015819A/en not_active Expired - Lifetime
- 1957-10-11 GB GB31857/57A patent/GB832649A/en not_active Expired
- 1957-10-25 DE DEC15687A patent/DE1055061B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB832649A (en) | 1960-04-13 |
| US3015819A (en) | 1962-01-02 |
| FR1160472A (fr) | 1958-07-16 |
| DE1055061B (de) | 1959-04-16 |