EP2761245B1 - Active protection system - Google Patents
Active protection system Download PDFInfo
- Publication number
- EP2761245B1 EP2761245B1 EP12755798.1A EP12755798A EP2761245B1 EP 2761245 B1 EP2761245 B1 EP 2761245B1 EP 12755798 A EP12755798 A EP 12755798A EP 2761245 B1 EP2761245 B1 EP 2761245B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- missile
- protection system
- target
- decoy
- radar
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 claims description 6
- 230000010287 polarization Effects 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000003491 array Methods 0.000 description 5
- 241000726103 Atta Species 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 230000007123 defense Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
- F41H11/00—Defence installations; Defence devices
- F41H11/02—Anti-aircraft or anti-guided missile or anti-torpedo defence installations or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
- F41J2/00—Reflecting targets, e.g. radar-reflector targets; Active targets transmitting electromagnetic or acoustic waves
Definitions
- the invention relates to a protection system, which is formed from at least one active decoy target based on, in particular, van Atta arrays, for the protection of objects, such as ships, vehicles, stationary objects, etc., against approaching radar-guided (active) missiles .
- This is an off-board protection system that works less as a jammer but rather as a sham target in the near range of 10m to a distance of 10km.
- a radar lobe of the approaching missile is used directly for generating and reflected back to this, without changing the properties.
- a directional antenna adaptation or adaptation of the characteristics is not necessary.
- Alternative active decoys such as in the DE 600 10 701 T2 addressed, are usually activated only with their shipment, so that a certain amount of time is scheduled, until the decoy has fully unfolded.
- the DE 100 16 781 A1 discloses the preamble of claim 1.
- the invention has the object to show an active decoy for the protection of objects, in particular of ships, against approaching radar-guided missiles.
- the invention is based on the idea of creating an active decoy by the use of a retro-reflector or a retro-directional antenna, preferably in the form of a van-Atta array or by at least one backscatter system, with means that actively actively monitor a radar signal in the direction of incidence and thus send back to the missile.
- a retro-reflector as an active decoy has the advantage that it generates a large radar backscatter frequency cross section (RCS) as an active retro-reflector, which allows the generation of a large RCS for any polarization of the missile.
- RCS radar backscatter frequency cross section
- a single van-Atta array - a single retro-directive antenna - is unable to determine the direction of an incident signal. Therefore, in the simplest variant, in addition to this array, a sensor for determining the direction of the approaching missile can be integrated into the device. This information is then exploited to align the array in that direction.
- a plurality of arrays are interconnected, whereby they not only cover a wide spatial area, but are also able to - for example, with the help of actuators etc. - to be able to independently align with the approaching missile.
- the direction of incidence of the approaching missile is determined by the arrays and this information is given to a storage control acting on actuators, etc. of the decoy, so the arrays, to align the decoy optimally to the missile.
- a dual-polarized realization allows the use of the reflector in any polarization of the missile (alignment of transverse waves in a preferred direction) by using appropriate antennas and their interconnection.
- the signals in the van-Atta array are tapped at amplifiers and fed into an electromagnetic lens, for example a Rotman lens.
- the receive antenna array functions both as part of the van-Atta array and for the Rotman lens.
- the signal power is detected or tapped, so that the direction of incidence of the signals and thus the direction of the approaching missile can be determined by comparing the power. This information is then used to make a position control for tracking the array.
- Fig. 1 is a 20 in a sketch-like representation for general understanding, a protection system shown that an active decoy 1 to threat defense of an object 4 against a radar-directed missile 5 has.
- the active decoy 1 includes at least one retro-directional antenna or retro-reflector 2, which can be formed at least from a receiving and transmitting antenna as a reflector or reflection antenna but also several to the radar beam R F emitted by the missile 5 exactly in the direction of incidence and to send back to the missile 5 as a reflection beam R S.
- the active protection system 1 is carried as an off-board variant when not in use on or on the object 4, here a ship.
- a sensor 6 is involved in the protection system 20, which sensor serves to detect the direction of the missile 5 and cooperates with an actuating unit (not shown) by which at least the decoy 1 can be brought into the corresponding position or direction.
- the one mode is the distraction - if the missile 5 has not yet switched to the object 4, the other mode is the seduction, separating the dummy target from the real target, a variant, if the missile 5 already the actual target (object 4) has recorded.
- the initiation of the distraction of the missile 5 is recognized as a passive missile, which in turn monitors an area of expectation.
- Direction, distance and speed of the missile 5 are determined.
- the decoy 1 is already deployed to create a more attractive target 4 'at a distance from the actual target 4 with the decoy 1.
- search process the detected missile 5 prefers. If then the missile 5 emits its radar lobe, this is already in the direction of the decoy 1, preferably even before this has the actual object 4 perceived.
- a radiated target signal is detected by further detectors, for example an active radar and radar warning devices, which are preferably mounted on the object 4.
- This radiated target signal of the missile 5 is received by the decoy 1 and amplified blasted back to the missile 5.
- the decoy 1 itself moves during object-like speed away from the object 4.
- the decoy 1 can fly away from the object 4, preferably at maximum object height. This is true for ships as well as other moving objects 4, e.g. As vehicles, too. In ships to be protected, the decoy 1 can be moved floating or passively, etc. moved. An independent driving away or pulling away is also possible with vehicles on land.
- the decoy 1 itself reflects the Fig. 3 ,
- the decoy 10 consists of an antenna 11, which consists of several receiving antennas 11.1-11.3 (11.n), and an antenna 12, which consists of several, preferably the same number of transmitting antennas 12.1-12.3, 12.n.
- amplifier stages V 1 -V 3 , V n are integrated between the two.
- the incident direction of the approaching missile 5 can be determined in addition to the recording of the radar beam R F.
- the signals running in the antenna group 11 are tapped at amplifiers V 1 -V 3 and fed to an electromagnetic lens 13, such as a Rotman lens. Their output information is compared in a comparator 14. For this purpose, their outputs are routed to the comparator or an evaluation unit 14. Based on the tapped signals, the incident direction of the signals and thus the direction of the approaching missile 5 is now determined in the evaluation unit 14. In this case, the signal differences of the antennas 11.1-11.3 are evaluated.
- a command is then given to a bearing control 15, which in turn on the servo motors 16, etc., ie, the actuator of the dummy target 10 and the protection system 20, act to align at least the dummy target 10 optimally to the missile 5.
- a direction sensor 6 can also be integrated into the evaluation here as well.
- the antennas 11 and 12 are preferably designed in the form of a van Atta array.
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Radar Systems Or Details Thereof (AREA)
Description
Die Erfindung beschäftigt sich mit einem Schutzsystem, das aus zumindest einem aktiven Scheinziel auf Grundlage von insbesondere van-Atta Arrays, zum Schutz von Objekten, wie von Schiffen, Fahrzeugen, stationären Objekten etc., vor anfliegenden Radar gelenkten (aktiven) Flugkörpern, gebildet wird. Dieses ist ein Off-Board-Schutzsystem, das weniger als Störer sondern vielmehr als Scheinziel sich im Nahbereich von 10m bis zu einer Entfernung von 10km bewährt. Dabei wird eine Radarkeule des anfliegenden Flugkörpers direkt zur Generierung genutzt und an diesen zurückgestrahlt, ohne Änderung der Eigenschaften. Eine Richtantennenanpassung oder Anpassung der Charakteristika ist nicht notwendig.The invention relates to a protection system, which is formed from at least one active decoy target based on, in particular, van Atta arrays, for the protection of objects, such as ships, vehicles, stationary objects, etc., against approaching radar-guided (active) missiles , This is an off-board protection system that works less as a jammer but rather as a sham target in the near range of 10m to a distance of 10km. In this case, a radar lobe of the approaching missile is used directly for generating and reflected back to this, without changing the properties. A directional antenna adaptation or adaptation of the characteristics is not necessary.
Zur Abwehr von aktiven Flugkörpern sind passive Täuschkörper (Düppel) bekannt. Diese werden ausgebracht und reflektieren ein vom Flugkörper ausgestrahltes Signal in die Richtung des anfliegenden Flugkörpers zurück. Ein passiver Radartäuschkörper wird mit der
Eine aktive Gegenmaßnahme unter Verwendung von passiven Täuschkörpern vor passiven Flugkörpern schlägt die
Alternative aktive Scheinziele, wie beispielsweise in der
Gelöst wird die Aufgabe durch die Merkmale der Patentansprüche 1, 9 bzw.11. Vorteilhafte Ausführungen werden in den Unteransprüchen benannt.The problem is solved by the features of
Der Erfindung liegt die Idee zugrunde, ein aktives Scheinziel durch den Einsatz eines Retro-Reflektors bzw. einer retrodirektive Antenne, bevorzugt in Form eines van-Atta Arrays oder durch wenigstens ein Backscatter-System zu schaffen, mit Mitteln also, die ein Radarsignal aktiv genau in die Einfallsrichtung und damit an den Flugkörper zurück senden können.The invention is based on the idea of creating an active decoy by the use of a retro-reflector or a retro-directional antenna, preferably in the form of a van-Atta array or by at least one backscatter system, with means that actively actively monitor a radar signal in the direction of incidence and thus send back to the missile.
Der Internetseite http://www.jpier.org/PIERL/pierl13/18.10020507.pdf ist der Aufbau eines Breitbandfrequenzversatzes eines van-Atta Arrays entnehmbar. Ein flaches van-Atta Array wird auf http://ir.lib.nctu.edu.tw/bitstream/987654321/22239/1/010337018.pdf offenbart. Die
Die Nutzung eines Retro-Reflektors als aktives Scheinziel hat den Vorteil, da dieses als aktiver Retro-Reflektor einen großen Radarrückstreufrequenzquerschnitt (RCS) erzeugt, was die Erzeugung eines großen RCS für beliebige Polarisationen des Flugkörpers ermöglicht.The use of a retro-reflector as an active decoy has the advantage that it generates a large radar backscatter frequency cross section (RCS) as an active retro-reflector, which allows the generation of a large RCS for any polarization of the missile.
Dabei ist aber zu berücksichtigen, dass ein einzelnes van-Atta Array - eine einzige retrodirektive Antenne - nicht in der Lage ist, die Richtung eines einfallenden Signals zu bestimmen. Daher kann in der einfachsten Variante zusätzlich zu diesem Array ein Sensor zur Ermittlung der Richtung des anfliegenden Flugkörpers in die Vorrichtung eingebunden werden. Diese Information wird dann dazu ausgenutzt, das Array in diese Richtung auszurichten.However, it should be noted that a single van-Atta array - a single retro-directive antenna - is unable to determine the direction of an incident signal. Therefore, in the simplest variant, in addition to this array, a sensor for determining the direction of the approaching missile can be integrated into the device. This information is then exploited to align the array in that direction.
In Weiterführung ist jedoch bevorzugt vorgesehen, dass mehrere Arrays zusammengeschaltet werden, wodurch diese nicht nur einen breiten räumlichen Bereich abdecken, sondern auch in die Lage versetzt werden, sich - beispielsweise mit Hilfe von Stellmotoren etc. - auf den anfliegenden Flugkörper selbstständig ausrichten zu können. Dazu wird durch die Arrays die Einfallsrichtung des anfliegenden Flugkörpers ermittelt und diese Information an eine Lagerregelung gegeben, die auf Stellmotore etc. des Scheinzieles, also der Arrays, einwirken, um das Scheinziel optimal auf den Flugkörper auszurichten.In continuation, however, it is preferably provided that a plurality of arrays are interconnected, whereby they not only cover a wide spatial area, but are also able to - for example, with the help of actuators etc. - to be able to independently align with the approaching missile. For this purpose, the direction of incidence of the approaching missile is determined by the arrays and this information is given to a storage control acting on actuators, etc. of the decoy, so the arrays, to align the decoy optimally to the missile.
Eine dual-polarisierte Realisierung ermöglicht durch Verwendung entsprechender Antennen und deren Verschaltung den Einsatz des Reflektors bei beliebiger Polarisation des Flugkörpers (Ausrichtung von Transversalwellen in einer Vorzugsrichtung). Für die Richtungsschätzung werden die im van-Atta Array laufenden Signale an Verstärkern abgegriffen und in eine elektromagnetische Linse, beispielsweise eine Rotman-Linse, gespeist. Damit fungiert das Empfangsantennenarray sowohl als Teil des van-Atta Arrays als auch für die Rotman-Linse. An den Ausgangsports der Rotman-Linse wird die Signalleistung detektiert bzw. abgegriffen, sodass durch Vergleich der Leistung die Einfallsrichtung der Signale und damit die Richtung des anfliegenden Flugkörpers ermittelt werden kann. Diese Information wird dann verwendet, um eine Lageregelung zur Nachführung des Arrays vornehmen zu können.A dual-polarized realization allows the use of the reflector in any polarization of the missile (alignment of transverse waves in a preferred direction) by using appropriate antennas and their interconnection. For the direction estimation, the signals in the van-Atta array are tapped at amplifiers and fed into an electromagnetic lens, for example a Rotman lens. Thus, the receive antenna array functions both as part of the van-Atta array and for the Rotman lens. At the output ports of the Rotman lens, the signal power is detected or tapped, so that the direction of incidence of the signals and thus the direction of the approaching missile can be determined by comparing the power. This information is then used to make a position control for tracking the array.
Anhand eines einfach dargestellten Ausführungsbeispiels soll die Idee näher erläutert werden. Es zeigt:
- Fig. 1
- eine skizzenhafte Darstellung eines aktiven Scheinzieles zur Flugkörperabwehr,
- Fig. 2
- eine erste vereinfacht dargestellte Variante des aktiven Scheinziels aus
Fig. 1 , - Fig. 3
- eine weitere Variante des Scheinziels aus
Fig. 1 in Form eines einfachen Schaltplans.
- Fig. 1
- a sketchy representation of an active decoy target for missile defense,
- Fig. 2
- a first simplified illustrated variant of the active decoy
Fig. 1 . - Fig. 3
- another variant of the decoy
Fig. 1 in the form of a simple circuit diagram.
In
In einer einfachsten Variante (
Dabei sind zwei verschiedene Funktionsmodes des Scheinziels 1 möglich. Der eine Mode ist die Distraktion - wenn sich der Flugkörper 5 noch nicht auf das Objekt 4 aufgeschaltet hat, der andere Mode ist die Seduktion, das Separieren des Scheinziels vom Echtziel, eine Variante, wenn der Flugkörper 5 bereits das eigentliche Ziel (Objekt 4) aufgenommen hat.Two different functional modes of the
Im Falle der Einleitung der Distraktion wird der Flugkörper 5 als passiver Flugkörper erkannt, der seinerseits ein Erwartungsgebiet überwacht. Es werden Richtung, Entfernung und Geschwindigkeit des Flugkörpers 5 ermittelt. Danach wird anhand der eingehenden Informationen das Scheinziel 1 bereits ausgebracht, um ein attraktiveres Ziel 4' in einem Abstand vom eigentlichen Ziel 4 mit dem Scheinziel 1 zu schaffen. Dabei wird auch berücksichtigt, welchen Suchablauf der detektierte Flugkörper 5 bevorzugt. Wenn dann der Flugkörper 5 seine Radarkeule ausstrahlt, erfolgt dieses bereits in die Richtung des Scheinzieles 1, bevorzugt noch bevor dieser das eigentliche Objekt 4 wahrgenommen hat.In the case of the initiation of the distraction of the
Bei der Seduktion, einem ebenfalls passiven Verfahren, wird durch weitere Detektoren, beispielsweise einem aktiven Radar und Radarwarnern, die bevorzugt auf dem Objekt 4 angebracht sind, ein abgestrahltes Zielsignal detektiert. Dieses abgestrahlte Zielsignal des Flugkörpers 5 wird vom Scheinziel 1 aufgenommen und verstärkt zum Flugkörper 5 zurück gestrahlt. Das Scheinziel 1 selbst bewegt sich während dessen in objektähnlicher Geschwindigkeit vom Objekt 4 weg.In the case of seduction, which is also a passive method, a radiated target signal is detected by further detectors, for example an active radar and radar warning devices, which are preferably mounted on the
Das Scheinziel 1 kann sich fliegend, bevorzugt in maximaler Objekthöhe, vom Objekt 4 entfernen. Das trifft für Schiffe als auch andere sich bewegende Objekte 4, z. B. Fahrzeuge, zu. Bei zu schützenden Schiffen kann das Scheinziel 1 schwimmend oder passiv gezogen etc. fortbewegt werden. Ein selbstständiges Wegfahren oder Wegziehen ist auch bei Fahrzeugen an Land möglich.The
Die bevorzugte Ausführung des Scheinzieles 1 selbst wiederspiegelt die
Mit den Antennen 11.1-11. 3 kann neben der Aufnahme des Radarstrahls RF auch die Einfallsrichtung des anfliegenden Flugkörpers 5 ermittelt werden. Für die Richtungsschätzung werden die in der Antennengruppe 11 laufenden Signale an Verstärkern V1- V3 abgegriffen und in eine elektromagnetische Linse 13, beispielsweise eine Rotman-Linse, gespeist. Deren Ausgangsinformationen werden in einem Vergleicher 14 verglichen. Dazu sind deren Ausgänge auf den Vergleicher bzw. eine Auswerteeinheit 14 geführt. Anhand der abgegriffenen Signale wird nunmehr in der Auswerteeinheit 14 die Einfallsrichtung der Signale und damit die Richtung des anfliegenden Flugkörpers 5 ermittelt. Hierbei werden die Signalunterschiede der Antennen 11.1-11.3 ausgewertet. In Auswertung wird dann ein Befehl an eine Lagerregelung 15 gegeben, die ihrerseits auf die Stellmotore 16 etc., d.h., der Stelleinheit des Scheinzieles 10 bzw. des Schutzsystems 20, einwirken, um zumindest das Scheinziel 10 optimal auf den Flugkörper 5 auszurichten. Zur Kontrolle kann aber auch hier zusätzlich ein Richtungssensor 6 mit in die Auswertung eingebunden werden.With the antennas 11.1-11. 3, the incident direction of the approaching
Die Antennen 11 und 12 sind bevorzugt in Form eines van-Atta Arrays ausgebildet.The
Claims (13)
- Protection system (20) for protecting an object (4) from a radar-guided missile (5), comprising an active decoy target (1, 10), which is formed by at least one retro-reflector or a retro-directive antenna (2, 11, 13), which can send a radar beam (RF) back as a reflection beam (RS) precisely in the direction of incidence, and consequently to the missile (5), characterized in that• the decoy target (10) consists of an antenna (11) with a number of receiving antennas (11.1-11.3, 11n) and a transmitting antenna (12) with a number of transmitting antennas (12.1-12.3, 12.n), wherein, according to the number of antennas (11, 12), amplifier stages (V1-V3, Vn) are incorporated between the two,• for an estimate of the direction, the signals running in the receiving antennas (11.1 11.3, 11n) are picked off at the amplifiers (V1-V3, Vn) and fed into an electromagnetic lens (13), the outputs of which are passed to a comparator (14), wherein• the comparator (14) is interconnected with a position control (15), which for its part acts on servomotors (16) of the decoy target (1, 10) and/or of the protection system (20) in order at least to align the decoy target (1, 10) optimally with the missile (5).
- Protection system (20) according to Claim 1, characterized in that the electromagnetic lens (13) is a Rotman lens.
- Protection system (20) according to Claim 1 or 2, characterized in that the retro-directive antenna (2) consists of at least one receiving and reflector antenna.
- Protection system (20) according to one of Claims 1 to 3, characterized in that a dual polarization is realized by the antennas (11, 12).
- Protection system (20) according to one of Claims 1 to 4, characterized in that the decoy target (1) locks onto the missile (5) by distraction or seduction.
- Protection system (20) according to Claim 5, characterized in that, for seduction, further detectors, for example an active radar and a radar warner, are preferably provided on the object (4).
- Protection system (20) according to one of Claims 1 to 6, characterized in that the decoy target (1, 10) can remove itself from the object (4) by flying, preferably at the maximum height of the object.
- Protection system (20) according to one of Claims 1 to 7, characterized in that the decoy target (1, 10) can be advanced by floating or being passively pulled.
- Method for protecting an object (4) from a radar-guided missile (5) by using a protection system (20) according to one of Claims 1 to 8, characterized by the following steps:• detecting a missile (5) as a passive missile, which for its part is monitoring an expected area,• determining the direction, distance and speed of the missile (5),• deploying a decoy target (1, 10) to create an attractive target (4') at a distance from the actual object (4), so that• when the missile (5) emits its radar lobe, this already takes place in the direction of the decoy target (1, 10), preferably even before it has perceived the actual object (4).
- Method according to Claim 9, characterized in that it is also taken into account which seeking procedure the detected missile (5) prefers.
- Method for protecting an object (4) from a radar guided missile (5) by using a protection system (20) according to one of Claims 1 to 8, characterized by the following steps:• detecting an emitted target signal of the missile (5),• picking up the emitted target signal by the decoy target (1, 10),• sending back the amplified emitted target signal to the missile (5), wherein• the decoy target (1, 10) during that time moves away from the object (4) at a speed similar to the object.
- Object (4) with a protection system (20) according to one of Claims 1 to 8.
- Object (4) according to Claim 12, characterized in that the object takes the form of ships and other moving objects (4), for example vehicles.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL12755798T PL2761245T3 (en) | 2011-09-30 | 2012-08-30 | Active protection system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011114574A DE102011114574A1 (en) | 2011-09-30 | 2011-09-30 | Active protection system |
PCT/EP2012/003634 WO2013045015A1 (en) | 2011-09-30 | 2012-08-30 | Active protection system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2761245A1 EP2761245A1 (en) | 2014-08-06 |
EP2761245B1 true EP2761245B1 (en) | 2017-10-04 |
Family
ID=46799193
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12755798.1A Active EP2761245B1 (en) | 2011-09-30 | 2012-08-30 | Active protection system |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP2761245B1 (en) |
DE (1) | DE102011114574A1 (en) |
DK (1) | DK2761245T3 (en) |
ES (1) | ES2654603T3 (en) |
NO (1) | NO2777281T3 (en) |
PL (1) | PL2761245T3 (en) |
PT (1) | PT2761245T (en) |
WO (1) | WO2013045015A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023274721A1 (en) * | 2021-07-02 | 2023-01-05 | Rheinmetall Waffe Munition Gmbh | Method for protecting an object from a radar-guided missile |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011120929A1 (en) | 2011-12-14 | 2013-06-20 | Rheinmetall Waffe Munition Gmbh | Protection system, in particular for ships, against radar-directed threats |
NO343895B1 (en) * | 2017-01-17 | 2019-07-01 | Norbit Its | Retrodirective Wireless Device and Method |
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US2908002A (en) | 1955-06-08 | 1959-10-06 | Hughes Aircraft Co | Electromagnetic reflector |
JPS492499B1 (en) | 1968-10-25 | 1974-01-21 | ||
US3938151A (en) | 1970-08-14 | 1976-02-10 | The United States Of America As Represented By The Secretary Of The Navy | Passive radar decoy having a large cross section |
US5064140A (en) * | 1990-10-09 | 1991-11-12 | The United States Of America As Represented By The Secretary Of The Army | Covert millimeter wave beam projector |
SE518244C2 (en) | 1999-04-01 | 2002-09-17 | Saab Ab | Method of projecting countermeasures, and device for storing and projecting countermeasures |
DE10016781C2 (en) * | 2000-04-05 | 2003-07-03 | Eads Deutschland Gmbh | guard |
DE102005037583A1 (en) | 2005-08-09 | 2007-02-22 | Siemens Ag | Method of detecting a transponder via a base station in a microwave radio frequency identification system |
DE102006017107A1 (en) | 2006-04-10 | 2007-10-11 | Oerlikon Contraves Ag | Protective device for a stationary and/or mobile radar to protect from anti-radiation missile attack comprises a decoy body or emitter formed as passive bodies radiated by a radar and reflecting the beams from the body |
EP2390957A1 (en) * | 2010-05-24 | 2011-11-30 | Chemring Countermeasures Limited | A radar decoy |
-
2011
- 2011-09-30 DE DE102011114574A patent/DE102011114574A1/en not_active Withdrawn
-
2012
- 2012-08-30 DK DK12755798.1T patent/DK2761245T3/en active
- 2012-08-30 PT PT127557981T patent/PT2761245T/en unknown
- 2012-08-30 PL PL12755798T patent/PL2761245T3/en unknown
- 2012-08-30 EP EP12755798.1A patent/EP2761245B1/en active Active
- 2012-08-30 ES ES12755798.1T patent/ES2654603T3/en active Active
- 2012-08-30 WO PCT/EP2012/003634 patent/WO2013045015A1/en active Application Filing
- 2012-11-07 NO NO12848184A patent/NO2777281T3/no unknown
Non-Patent Citations (1)
Title |
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None * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023274721A1 (en) * | 2021-07-02 | 2023-01-05 | Rheinmetall Waffe Munition Gmbh | Method for protecting an object from a radar-guided missile |
Also Published As
Publication number | Publication date |
---|---|
DE102011114574A1 (en) | 2013-04-04 |
NO2777281T3 (en) | 2018-07-28 |
ES2654603T3 (en) | 2018-02-14 |
PT2761245T (en) | 2018-01-08 |
WO2013045015A1 (en) | 2013-04-04 |
PL2761245T3 (en) | 2018-03-30 |
DK2761245T3 (en) | 2018-01-08 |
EP2761245A1 (en) | 2014-08-06 |
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