SE8601207D0 - PROCEDURE TO SAVE HELICOPTERS - Google Patents
PROCEDURE TO SAVE HELICOPTERSInfo
- Publication number
- SE8601207D0 SE8601207D0 SE8601207A SE8601207A SE8601207D0 SE 8601207 D0 SE8601207 D0 SE 8601207D0 SE 8601207 A SE8601207 A SE 8601207A SE 8601207 A SE8601207 A SE 8601207A SE 8601207 D0 SE8601207 D0 SE 8601207D0
- Authority
- SE
- Sweden
- Prior art keywords
- helicopters
- save
- procedure
- save helicopters
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853512032 DE3512032C2 (en) | 1985-04-02 | 1985-04-02 | Process for the detection and classification of helicopters using a radar system |
Publications (1)
Publication Number | Publication Date |
---|---|
SE8601207D0 true SE8601207D0 (en) | 1986-03-14 |
Family
ID=6267112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8601207A SE8601207D0 (en) | 1985-04-02 | 1986-03-14 | PROCEDURE TO SAVE HELICOPTERS |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE904538A (en) |
DE (1) | DE3512032C2 (en) |
FR (1) | FR2683325B1 (en) |
GB (1) | GB2253963B (en) |
SE (1) | SE8601207D0 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7522089B2 (en) * | 2006-06-12 | 2009-04-21 | Raytheon Company | Airborne look-down doppler radar tracking of hovering helicopters using rotor features |
RU2468385C2 (en) * | 2010-12-13 | 2012-11-27 | Федеральное государственное научное учреждение "Государственный научно-технологический центр "Наука" (ФГНУ "ГНТЦ "Наука") | Method of tracking "helicopter" class aerial target |
DE102011015917B4 (en) | 2011-04-01 | 2015-09-17 | Bundesrepublik Deutschland, vertr.d.d. Bundesministerium für Wirtschaft und Technologie, d.vertr.d.d. Präsidenten der Physikalisch-Technischen Bundesanstalt | Method for free space radio signal measurement and free space radio signal measuring device for this purpose |
CN111198359B (en) * | 2020-01-11 | 2022-07-05 | 桂林电子科技大学 | A Rotor UAV Detection Method Based on Target Doppler Width |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2341142A1 (en) * | 1976-02-10 | 1977-09-09 | Labo Cent Telecommunicat | AUTOMATIC RECOGNITION DEVICE FOR CRAWLER MACHINES |
US4119966A (en) * | 1977-07-14 | 1978-10-10 | Motorola Inc. | Clutter discriminating apparatus for use with pulsed doppler radar systems and the like |
DE2928907A1 (en) * | 1979-07-18 | 1981-06-19 | Siemens AG, 1000 Berlin und 8000 München | METHOD FOR CLASSIFYING MOVING TARGETS |
FR2463938B1 (en) * | 1979-08-23 | 1985-07-26 | Labo Cent Telecommunicat | RADAR DOPPLER TO DETECT AND LOCATE HELICOPTERS |
US4275396A (en) * | 1979-10-12 | 1981-06-23 | Jacomini Omar J | Helicopter rotating blade detection system |
US4389647A (en) * | 1980-12-22 | 1983-06-21 | The United States Of America As Represented By The Secretary Of The Army | Doppler discrimination of aircraft targets |
DE3233327C2 (en) * | 1982-09-08 | 1986-04-17 | Siemens AG, 1000 Berlin und 8000 München | Circuit arrangement for the discovery and detection of helicopters |
-
1985
- 1985-04-02 DE DE19853512032 patent/DE3512032C2/en not_active Expired - Lifetime
-
1986
- 1986-03-11 GB GB8605940A patent/GB2253963B/en not_active Expired - Lifetime
- 1986-03-14 SE SE8601207A patent/SE8601207D0/en unknown
- 1986-03-26 FR FR8604379A patent/FR2683325B1/en not_active Expired - Lifetime
- 1986-04-02 BE BE0/216491A patent/BE904538A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
GB2253963A (en) | 1992-09-23 |
GB2253963B (en) | 1993-02-03 |
FR2683325B1 (en) | 1996-01-26 |
DE3512032A1 (en) | 1992-05-27 |
DE3512032C2 (en) | 1994-07-28 |
BE904538A (en) | 1993-04-13 |
FR2683325A1 (en) | 1993-05-07 |
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