GB1490751A - Doppler radar - Google Patents
Doppler radarInfo
- Publication number
- GB1490751A GB1490751A GB1205/75A GB120575A GB1490751A GB 1490751 A GB1490751 A GB 1490751A GB 1205/75 A GB1205/75 A GB 1205/75A GB 120575 A GB120575 A GB 120575A GB 1490751 A GB1490751 A GB 1490751A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal
- amplitude
- comparison signal
- quadrature
- switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
- 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
- G01S7/28—Details of pulse systems
- G01S7/285—Receivers
- G01S7/292—Extracting wanted echo-signals
- G01S7/2923—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods
- G01S7/2928—Random or non-synchronous interference pulse cancellers
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 |
---|---|---|---|
SE7400484A SE371299B (nl) | 1974-01-15 | 1974-01-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1490751A true GB1490751A (en) | 1977-11-02 |
Family
ID=20319913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1205/75A Expired GB1490751A (en) | 1974-01-15 | 1975-01-10 | Doppler radar |
Country Status (8)
Country | Link |
---|---|
AT (1) | AT347506B (nl) |
CH (1) | CH578182A5 (nl) |
DK (1) | DK137408B (nl) |
GB (1) | GB1490751A (nl) |
IT (1) | IT1028379B (nl) |
NL (1) | NL7500466A (nl) |
NO (1) | NO134640C (nl) |
SE (1) | SE371299B (nl) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0126032A2 (en) * | 1983-05-04 | 1984-11-21 | SELENIA INDUSTRIE ELETTRONICHE ASSOCIATE S.p.A. | Device for the identification and suppression of unwanted second trace echoes in radar systems |
WO2013051944A1 (en) * | 2011-10-07 | 2013-04-11 | 3D-Radar As | Adaptive interference suppression for georadar |
EP2743722A1 (en) * | 2012-12-14 | 2014-06-18 | BAE Systems PLC | Mitigation of anomalous propagation effects in radar |
WO2014091230A1 (en) * | 2012-12-14 | 2014-06-19 | Bae Systems Plc | Mitigation of anomalous propagation effects in radar |
-
1974
- 1974-01-15 SE SE7400484A patent/SE371299B/xx not_active IP Right Cessation
-
1975
- 1975-01-10 GB GB1205/75A patent/GB1490751A/en not_active Expired
- 1975-01-14 DK DK7075AA patent/DK137408B/da not_active IP Right Cessation
- 1975-01-14 CH CH40475A patent/CH578182A5/xx not_active IP Right Cessation
- 1975-01-14 NO NO750102A patent/NO134640C/no unknown
- 1975-01-14 AT AT23575A patent/AT347506B/de not_active IP Right Cessation
- 1975-01-15 IT IT19283/75A patent/IT1028379B/it active
- 1975-01-15 NL NL7500466A patent/NL7500466A/nl not_active Application Discontinuation
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0126032A2 (en) * | 1983-05-04 | 1984-11-21 | SELENIA INDUSTRIE ELETTRONICHE ASSOCIATE S.p.A. | Device for the identification and suppression of unwanted second trace echoes in radar systems |
EP0126032A3 (en) * | 1983-05-04 | 1987-05-27 | Selenia Industrie Elettroniche Associate S.P.A. | Device for the identification and suppression of unwanted second trace echoes in radar systems |
WO2013051944A1 (en) * | 2011-10-07 | 2013-04-11 | 3D-Radar As | Adaptive interference suppression for georadar |
CN103959087A (zh) * | 2011-10-07 | 2014-07-30 | 3D雷达公司 | 探地雷达的自适应干扰抑制 |
CN103959087B (zh) * | 2011-10-07 | 2016-12-14 | 3D雷达公司 | 探地雷达的自适应干扰抑制 |
EP2743722A1 (en) * | 2012-12-14 | 2014-06-18 | BAE Systems PLC | Mitigation of anomalous propagation effects in radar |
WO2014091230A1 (en) * | 2012-12-14 | 2014-06-19 | Bae Systems Plc | Mitigation of anomalous propagation effects in radar |
US9810773B2 (en) | 2012-12-14 | 2017-11-07 | Bae Systems Plc | Mitigation of anomalous propagation effects in radar |
Also Published As
Publication number | Publication date |
---|---|
SE371299B (nl) | 1974-11-11 |
NO134640B (nl) | 1976-08-09 |
DE2500877B2 (de) | 1977-07-07 |
IT1028379B (it) | 1979-01-30 |
DE2500877A1 (de) | 1975-07-24 |
ATA23575A (de) | 1978-05-15 |
CH578182A5 (nl) | 1976-07-30 |
NO134640C (nl) | 1976-11-17 |
NO750102L (nl) | 1975-08-11 |
DK137408C (nl) | 1978-08-07 |
NL7500466A (nl) | 1975-07-17 |
AT347506B (de) | 1978-12-27 |
DK137408B (da) | 1978-02-27 |
DK7075A (nl) | 1975-09-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |