EP3994420A1 - Cible virtuelle, système et procédé pour protéger un objet - Google Patents

Cible virtuelle, système et procédé pour protéger un objet

Info

Publication number
EP3994420A1
EP3994420A1 EP20727621.3A EP20727621A EP3994420A1 EP 3994420 A1 EP3994420 A1 EP 3994420A1 EP 20727621 A EP20727621 A EP 20727621A EP 3994420 A1 EP3994420 A1 EP 3994420A1
Authority
EP
European Patent Office
Prior art keywords
decoy
target
corner reflectors
height
reflector matrix
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.)
Pending
Application number
EP20727621.3A
Other languages
German (de)
English (en)
Inventor
Tobias MODEREGGER
Martin Fegg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinmetall Waffe Munition GmbH
Original Assignee
Rheinmetall Waffe Munition GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rheinmetall Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Publication of EP3994420A1 publication Critical patent/EP3994420A1/fr
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41J—TARGETS; TARGET RANGES; BULLET CATCHERS
    • F41J9/00—Moving targets, i.e. moving when fired at
    • F41J9/08—Airborne targets, e.g. drones, kites, balloons
    • 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 decoy target comprising at least two corner reflectors reflecting radar radiation.
  • the invention also relates to a system comprising at least one such decoy target.
  • the invention also relates to a method for protecting moving objects by means of a decoy target.
  • the target subsystems of such missiles work mainly in the radar range (radio frequency range).
  • the radar backscatter behavior of targets such as ships, airplanes, tanks, buildings is used to find and track targets.
  • standard decoys such as chaffs or a combination of chaffs with IR decoys (flares) are usually used as decoy targets.
  • Such standard decoys are known, for example, from DE 10 2005 035 251 A1, DE 100 21 99 A, DE 196 17 701 A1, DE 10 2015 002 737 A1, DE 199 51 767 C2 or DE 39 05 748 A1.
  • chaffs have about four times as high a backscattering power under horizontal polarization as under vertical polarization.
  • Modern search heads of missiles can therefore recognize such decoy targets and ignore them further. This ability of modern search heads is also known as chaff discrimination.
  • the invention is based on the object of creating an improved decoy target which provides effective protection against modern missiles.
  • a decoy target comprising at least two corner reflectors reflecting radar radiation.
  • the corner reflectors are arranged, in particular in a deployed state, in a reflector matrix with a predetermined height, side and / or depth graduation according to a target to be simulated.
  • a system comprising at least one decoy target of this type or as described below is provided, the system having a carrier system.
  • a method for protecting moving objects by means of a decoy target in particular a decoy target as described above or further developed below, is provided, the method being achieved by simulating a target by arranging at least two corner reflectors in a reflector matrix with a predetermined height , Side and / or depth graduation is marked.
  • the corner reflectors are radar reflectors that comprise several corner reflectors. In particular, these can be designed as an octahedral radar reflector with eight triangular corner reflectors. However, other configurations are also conceivable which include a plurality of corner reflectors. Corner reflectors can reflect radiation in the millimeter wave range (radar radiation) well over a wide angular range.
  • the surfaces of the corner reflector are made from a reflective material such as metal or a material coated with metal.
  • the corner reflectors formed in the decoy target according to the invention can have different backscatter behavior so that the individual corner reflectors
  • the radar signature generated by reflectors differs from one another in order to reproduce the target to be reproduced as precisely as possible.
  • Seeker head of an approaching missile can thereby be deceived and / or deflected.
  • the reflector matrix comprises a large number of corner reflectors which are arranged with a defined height, side and / or depth graduation according to a target to be simulated. Radar signatures of one's own infrastructure, fleet or one's own vehicles are known and / or can be determined. The reflector matrix is adapted to these known radar signatures in order to simulate the own vehicle (e.g. land vehicle, ship or aircraft) or object accordingly.
  • own vehicle e.g. land vehicle, ship or aircraft
  • the reflector matrix can be adapted to the type of missile in order to simulate the target to be simulated accordingly.
  • the radar signature of a target is simulated by the reflector matrix and the corresponding arrangement of the corner reflectors. Corner reflectors can be arranged accordingly in the reflector matrix to simulate the radar signature of a target to be simulated as precisely as possible. Furthermore, it can be provided that, if a missile that is easily deceptive or deflectable has been detected, only a small number of reflectors adapted to it is deployed, which is sufficient to repel the missile.
  • the decoy target according to the invention is chaff-free or chaff-free.
  • a decoy target according to the invention in particular sixteen, twenty-four, thirty-two or sixty-four corner reflectors can be provided in the form of a reflector matrix.
  • sixteen, twenty-four, thirty-two or sixty-four corner reflectors can be provided in the form of a reflector matrix.
  • the invention ensures that the seeker head of an approaching missile can be reliably deceived. This happens because the seeker head of the missile activates the decoy as a target and the missile is deflected away from the object to be protected or is completely fixed on the decoy, since the radar signature of the decoy is correspondingly more distinctive than the radar signature of the object to be protected.
  • the corner reflectors By placing the corner reflectors in a reflector matrix, the reflector properties are increased compared to individual corner reflectors due to this spatial arrangement.
  • These decoy targets cannot be distinguished from the actual target by the seeker of an attacking missile due to the reflection properties of a corner reflector.
  • the tactical use of the decoy targets according to the invention provides that, depending on the threat, for example a small number of corner reflectors are geometrically positioned as a reflector matrix or also in others
  • the corner reflectors are connected to one another via at least one connecting element to form the reflector matrix, the predetermined height, side and / or depth graduation being specified by the at least one connecting element.
  • connection by the connecting elements can be permanent or temporary.
  • the height, side and / or depth graduation of the individual corner reflectors of the reflector matrix is constant over a certain period of time, in particular the end phase of a missile attack.
  • the end phase of a missile attack is understood, in particular, to be the period of time in which the seeker has activated the target or the decoy target.
  • the height, side and / or depth graduation of the individual corner reflectors of the reflector matrix is constant for this period of time, so that the attacking missile attacks the decoy and not the actual target.
  • the distribution of the corner reflectors in the reflector matrix is constant.
  • the duration of the final phase of a missile attack can vary.
  • the connecting element is designed to be correspondingly strong or thick-walled in order to keep the height, side and / or depth gradation of the individual corner reflectors of the reflector matrix constant over a certain period of time, in particular the end phase of a missile attack.
  • the connecting element has a corresponding thickness or density.
  • the at least one connecting element comprises at least one net, at least one wire, at least one cord, at least one line, at least one rope and / or at least one hose, etc.
  • the individual corner reflectors are temporarily, in particular for the final phase of a missile attack, or permanently with one another are connected and are arranged in the desired height, side and / or depth graduation.
  • corner reflectors are foldable or inflatable corner reflectors.
  • the decoy target can be developed in such a way that the reflector matrix provides a linear height, side and / or depth graduation to simulate a target.
  • the decoy target can be designed in such a way that the decoy target comprises at least three corner reflectors and the reflector matrix provides a level gradation in height, side and / or depth to simulate a target.
  • the decoy target can provide that the decoy target comprises at least four corner reflectors and the reflector matrix for a spatial height, side and / or depth graduation
  • the decoy is an air-supported decoy.
  • the decoy target can preferably be designed such that it can be fired, in particular from a launcher or a launcher system.
  • the decoy target can be designed to fall freely.
  • the decoy can be connected to a parachute or a braking device, whereby the decoy is braked in free fall and slowed down in this.
  • the system can be developed in such a way that the carrier system comprises at least one unmanned aircraft, at least one parachute and / or at least one braking device.
  • the plurality of corner reflectors are connected to the aircraft, the parachute or the braking device in a floating manner via the at least one connecting element.
  • the method can provide that the defined height, side and depth graduation of the individual corner reflectors of the reflector matrix is kept constant over a certain period of time, in particular the end phase of a missile attack.
  • the decoy target is air-supported.
  • the plurality of corner reflectors are connected to an unmanned aerial vehicle, a parachute or a braking device in a floating manner.
  • the decoy target is fired.
  • the shooting can take place in particular from a launcher or a launcher using mechanical, pyrotechnic or pneumatic means.
  • FIG. 1 shows a schematic representation of a decoy target according to the invention according to a first embodiment
  • FIG. 2a shows a schematic representation of a decoy target according to the invention according to a second embodiment
  • FIG. 2b shows a schematic illustration of a decoy target according to the invention according to a third embodiment
  • FIG. 3 shows a schematic representation of a decoy target according to the invention according to a fourth embodiment
  • FIG. 4 shows a schematic illustration of a decoy target according to the invention in accordance with a fifth embodiment
  • FIG. 5 shows a schematic illustration of a decoy target according to the invention in accordance with a sixth embodiment
  • FIG. 6 shows a schematic representation of a decoy target according to the invention according to a seventh embodiment
  • FIG. 7 shows a schematic representation of a decoy target according to the invention in accordance with an eighth embodiment.
  • FIG. 1 shows a schematic representation of a decoy target 2 according to the invention according to a first embodiment in an deployed state.
  • the decoy target 2 has at least two corner reflectors 11 reflecting radar radiation.
  • the corner reflectors 11 of the decoy target 2 are arranged in a reflector matrix with a predetermined height, side and / or depth graduation corresponding to a target to be simulated.
  • the corner reflectors 1 1 are foldable or inflatable corner reflectors 1 1
  • the decoy target 2 has a multiplicity, for example twenty corner reflectors 11, which form the reflector matrix 10 and provide a spatial graduation in height, side and / or depth to simulate a target. It is also possible that the decoy 2 has fewer corner reflectors 11 than shown, in particular sixteen, twenty-four, thirty-two or sixty-four, with at least four corner reflectors 11 to form a spatial gradation in height, side and / or depth are.
  • the decoy target 2 according to the invention provides a reflector matrix 10 with a linear height, side and / or depth graduation to simulate a target.
  • a reflector matrix 10 with a linear height, side and / or depth graduation to simulate a target.
  • at least two corner reflectors 1 1 are necessary.
  • the decoy target 2 may include three corner reflectors 11 and for the reflector matrix 10 to provide a planar or flat height, side and / or depth graduation to simulate a target.
  • the reflector matrix 10 is formed.
  • the decoy target 2 according to FIG. 1 is designed to be shootable so that it can be fired from a launcher or a launcher system, for example.
  • the decoy 2 according to FIG. 1 is designed to fall freely.
  • FIGS 2a to 7 each show embodiments of the decoy target 2 according to the invention, in which the decoy target 2 has at least one connecting element 13 by which the corner reflectors 11 are connected to one another to form the reflector matrix 10.
  • FIGS. 2a to 7 are based on the embodiment according to FIG. 1 and the differences are additionally explained below.
  • the decoy targets 2 are part of a system 1 which, in addition to the at least one decoy target 2, has at least one carrier system 20, 20 ′, 30, 40.
  • the at least one carrier system 20, 20 ′, 30, 40 is each designed to carry or brake the decoy 2 in the air, so that the decoy 2 according to FIGS. 2a to 7 are air-supported decoys 2.
  • Carrier system (s) 20, 20 ', 30, 40 and decoy 2 together form the system 1 according to the invention.
  • the at least one connecting element 13 is designed such that the height, side and / or depth gradation of the individual corner reflectors 11 of the reflector matrix 10 is constant over a certain period of time, in particular the end phase of a missile attack.
  • the at least one connecting element 13 has according to the illustrated
  • Embodiments at least one wire, at least one cord, at least one leash, at least one rope and / or at least one hose.
  • the connecting element 13 can, however, also be designed as a network.
  • FIG. 2a shows a schematic representation of a decoy target 2 according to the invention according to a second embodiment in the deployed state.
  • the decoy target 2 has a reflector matrix 10 with a linear height graduation for simulating a target.
  • the carrier system is at least one unmanned aerial vehicle 20 and the decoy 2 is connected to it.
  • the plurality of corner reflectors 11 are connected to the aircraft 20 in a floating manner via the at least one connecting element 13.
  • the aircraft 20 is a drone with a plurality of propellers.
  • FIG. 2b shows a third embodiment of a decoy target 2 according to the invention in the deployed state, based on FIG. 2a.
  • the decoy target 2 has a spatial graduation in height for simulating a target.
  • FIG 3 shows a schematic illustration of a decoy target 2 according to the invention in accordance with a third embodiment in the deployed state.
  • the decoy 2 has at least four corner reflectors 11, so that the reflector matrix 10 has a spatial gradation in height, side and depth.
  • Each of the two decoy targets 3 is carried by an aircraft 20, in particular a drone.
  • FIG. 4 shows a schematic representation of a decoy target 2 according to the invention according to a fourth embodiment in the deployed state.
  • the embodiment according to FIG. 4 is based on the embodiment according to FIG. 2a, with the difference that several aircraft 20, preferably two aircraft 20, in particular two drones 20, jointly carry the decoy 2.
  • 5 shows a schematic representation of a decoy target 2 according to the invention according to a sixth embodiment in the deployed state.
  • FIG. 5 is based on the embodiment according to FIG. 2a, with the difference that according to FIG. 5 the decoy 2 is carried by an aircraft 20 'in the form of a balloon.
  • FIG. 6 shows a schematic representation of a decoy target 2 according to the invention according to a sixth embodiment in the deployed state.
  • the embodiment according to FIG. 6 shows a schematic representation of a decoy target 2 according to the invention according to a sixth embodiment in the deployed state. The embodiment according to FIG.
  • a parachute 30 is designed as a carrier system with which the plurality of corner reflectors 11 are suspended over the at least one connecting element 13 with the parachute 30 are connected.
  • the parachute 30 slows down the fall of the system in order to achieve a sufficient dwell time of the decoy 2 to repel an end-phase guided missile.
  • FIG. 7 shows a schematic representation of a decoy target 2 according to the invention according to a seventh embodiment in the deployed state.
  • the embodiment according to FIG. 7 shows a schematic representation of a decoy target 2 according to the invention according to a seventh embodiment in the deployed state. The embodiment according to FIG.
  • FIG. 7 is based on the embodiment according to FIG. 2a, with the difference that according to FIG. 6 a braking device 40 is provided instead of the parachute 30.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

L'invention concerne une cible virtuelle comprenant au moins deux réflecteurs coins (11) réfléchissant un rayonnement radar, les réflecteurs coins (11) étant disposés dans une matrice réflectrice (10) pourvue d'un échelonnement de hauteur, de côté et/ou de profondeur prédéfini par l'élément ou les éléments de liaison (15) en fonction d'une cible à reproduire.
EP20727621.3A 2019-07-02 2020-05-20 Cible virtuelle, système et procédé pour protéger un objet Pending EP3994420A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019117801.0A DE102019117801A1 (de) 2019-07-02 2019-07-02 Scheinziel, System und Verfahren zum Schützen eines Objekts
PCT/EP2020/064151 WO2021001089A1 (fr) 2019-07-02 2020-05-20 Cible virtuelle, système et procédé pour protéger un objet

Publications (1)

Publication Number Publication Date
EP3994420A1 true EP3994420A1 (fr) 2022-05-11

Family

ID=70802861

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20727621.3A Pending EP3994420A1 (fr) 2019-07-02 2020-05-20 Cible virtuelle, système et procédé pour protéger un objet

Country Status (7)

Country Link
US (1) US20220290951A1 (fr)
EP (1) EP3994420A1 (fr)
KR (1) KR20220044193A (fr)
AU (1) AU2020298675A1 (fr)
CA (1) CA3145568A1 (fr)
DE (1) DE102019117801A1 (fr)
WO (1) WO2021001089A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201913022D0 (en) * 2019-09-10 2019-10-23 Secr Defence Decoy system
US11987355B2 (en) 2021-06-09 2024-05-21 Raytheon Company Method and flexible apparatus permitting advanced radar signal processing, tracking, and classification/identification design and evaluation using single unmanned air surveillance (UAS) device
DE102021117084A1 (de) 2021-07-02 2023-01-05 Rheinmetall Waffe Munition Gmbh Verfahren zum Schutz eines Objekts vor einem radargelenkten Flugkörper

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JP2013213726A (ja) * 2012-04-02 2013-10-17 Ihi Aerospace Co Ltd コーナーリフレクタ群とこれを備えたデコイシステム
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US20180164080A1 (en) * 2016-08-22 2018-06-14 Richard Chi-Hsueh Land and air defense system having drones
TR201710409A2 (tr) * 2017-07-14 2019-02-21 Tuerkiye Bilimsel Ve Teknolojik Arastirma Kurumu Tuebitak Çok yönlü geri̇ yansimali pasi̇f sahte hedef

Also Published As

Publication number Publication date
WO2021001089A1 (fr) 2021-01-07
DE102019117801A1 (de) 2021-01-07
KR20220044193A (ko) 2022-04-06
US20220290951A1 (en) 2022-09-15
CA3145568A1 (fr) 2021-01-07
AU2020298675A1 (en) 2022-02-10

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