EP3894779A1 - Procédé de protection d'objets mobiles ou immobiles contre des menaces guidées par laser qui s'approchent - Google Patents

Procédé de protection d'objets mobiles ou immobiles contre des menaces guidées par laser qui s'approchent

Info

Publication number
EP3894779A1
EP3894779A1 EP19801326.0A EP19801326A EP3894779A1 EP 3894779 A1 EP3894779 A1 EP 3894779A1 EP 19801326 A EP19801326 A EP 19801326A EP 3894779 A1 EP3894779 A1 EP 3894779A1
Authority
EP
European Patent Office
Prior art keywords
decoy
decoys
wind
laser
cloud
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
EP19801326.0A
Other languages
German (de)
English (en)
Inventor
Thomas Macher
Lukas Grundner
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 EP3894779A1 publication Critical patent/EP3894779A1/fr
Pending legal-status Critical Current

Links

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
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H11/00—Defence installations; Defence devices
    • 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
    • F41H9/00—Equipment for attack or defence by spreading flame, gas or smoke or leurres; Chemical warfare equipment
    • F41H9/06—Apparatus for generating artificial fog or smoke screens

Definitions

  • the invention relates to a method for protecting movable or immovable objects from laser-guided threats approaching the object.
  • the invention is particularly concerned with the protection against laser-guided threats approaching from above (e.g. laser-guided missiles, sliding bombs, laser-guided bombs, etc.).
  • Laser-guided threats have a laser finder made of photodiodes.
  • the photodiodes register only a certain wave spectrum of monochromatic laser light.
  • the target In order for the target to be recognized by the sensor, it must be marked with a laser beam from the ground or from the air until it hits the target.
  • the missile requires visual contact with the target during the final phase of the flight.
  • DE 196 04 745 C1 already deals with a method and an arrangement for deceiving ammunition directed towards the final phase.
  • the target is spared by sending a laser beam to this ammunition, which directs the ammunition to a new flight path.
  • DE 103 46 001 B4 discloses a method for protecting ships against missiles guided in the final phase and a device for carrying out this method.
  • an optimal decoy pattern is obtained by means of a computer from the missile data (approach direction, distance and speed of the missile), the ship's own data (cruise speed, direction of travel and rolling and pitching movements of the ship), and the wind data (wind speed and wind direction) determined.
  • the number of required decoys, their firing angle and their delay time until the ignition of their active mass is determined.
  • a decoy launcher is activated, which uses programmable numbers to determine the number of corresponding decoys Delay time fires.
  • the active masses of the decoys are then deployed at a predetermined height in the immediate vicinity of the ship in order to generate a decoy structure, which then continues the decoy from the ship with a change of direction.
  • Devices for providing a dummy target in front of radar-steered search heads describe the DE 10 2015 002 737 A1 and DE 10 2010 032 458 A1.
  • a device and a method for producing an effective smoke screen can be found in WO 2012 / 028257A1.
  • DE 1 1 2010 003 767 T5 discloses a laser-guided missile with a dual-mode SAL / IR seeker head with a common line of sight. With the help of an IR detector, the incident infrared energy is recorded in order to generate at least one IR steering signal. At least one SAL steering signal is generated with a position-sensitive SAL detector.
  • the invention has for its object to provide a method with which protection of moving objects, such as ships or other military vehicles, but also immobile objects, such as buildings, from approaching laser-guided missiles is possible in a simple manner.
  • the invention is essentially based on the idea that during the final phase of the flight of a laser-guided ammunition or missile, i.e. a threat, the visual contact with the target is interrupted.
  • a decoy cloud is generated, which at least hides or possibly envelops the ship from above during the final phase, i.e. includes.
  • the decoy launcher is aligned in such a way that the active masses of the decoys are activated appropriately above an object to be protected and in a predeterminable height range to the side of the object to be protected.
  • the application takes place taking into account the wind direction.
  • the decoy cloud (s) that is formed is then moved beyond the one to be protected by the wind force acting on them Object then moves and hides it. This breaks the line of sight to the target.
  • the individual decoys are fired in several volleys, which together form a sequence, in order to completely cover the object with a cloud of exchange bodies.
  • the decoys of the respective salvo are arranged in rows.
  • the time interval between the volleys is selected such that the individual volleys can be fired into the same spatial area, i.e. the wind has already moved the decoy sub-cloud of the previous salvo towards the object before the charges of the decoys of the new ones Salvo activated.
  • the covering of the object can also, as already thought in DE 10 2015 002 737 A1, be realized by a plurality of projectors (decoy projectors) of a TKWA (decoy projecting system).
  • Another advantage of this method is that problems caused by decoys falling back on the object (e.g.: not completely burned flares, etc.) are excluded. These fall into the water or onto the floor next to the object to be protected.
  • the invention proposes to ignite active masses of a corresponding number of decoys in a predetermined height range on the windward side of the object to be protected , so that the decoy cloud (s) forming in this height range is moved over the object to be protected by the wind force acting on them and then covers it.
  • FIGS. 1a, 2a and 3a show schematic front views of a ship emitting decoy bursts to generate a decoy cloud according to the invention above the ship, and FIGS. 1b, 2b and 3b show the top views belonging to FIGS. 1a, 2a and 3a on the ship shown mathematically.
  • 1 a to 3b, 1 denotes a ship, which is only shown schematically.
  • the ship 1 is provided with at least one “top attack” sensor 2, which can detect a laser beam 8 directed from above onto the ship 1 in such a timely manner that countermeasures according to the invention can be taken before the missile 3 strikes the ship 1.
  • the laser beam 8 does not necessarily have to be directed 90 ° from above onto the ship 1. If the laser beam 8 lies in the detection area 9 of the “top attack” sensor 2, this is detected accordingly and defense measures according to the invention can be taken.
  • a computer determines an optimal decoy pattern 100 from the missile or threat data (distance, speed), the ship data (direction of movement, speed of movement) and the wind data (direction and speed) (FIG. 3b; for calculating Decoy patterns, see also DE 103 46 001 B4 or WO 2012/028257 A1).
  • the method for determining the optimal decoy pattern can be optimized by using bearing data, e.g. Elevation and azimuth angles of the threat (direction of the laser beam 8) are also taken into account.
  • a measurement of the elevation and azimuth angle of the laser beam 8 can be omitted if the laser beam 8 assigns a target from above, so that the elevation angle is 90 ° and the azimuth angle is irrelevant.
  • the decoys 4 can be decoys with an infrared / smoke signature.
  • At least one decoy launcher 5 is activated, which fires the number of corresponding decoys 4 then determined in good time.
  • the at least one decoy launcher 5 is aligned in such a way that the active mass of the respective decoy 4 is ignited on the windward side by the ship 1 to be protected, and after the ignition of its active masses, the decoys 4 generate a decoy cloud corresponding to the decoy pattern 100.
  • This decoy cloud is moved over the ship 1 by the wind 6 to be blown onto the ship 1 and covers it, so that the ship 1 is no longer recognized as such by an approaching laser-guided threat 3 and a target assignment of the threat 3 becomes impossible.
  • volleys of decoys 4 are fired one after the other.
  • five volleys IV are fired to cover the ship 1, the firing of the first volley I in FIGS. 1a and 1b, the firing of the second volley II in FIGS. 2a and 2b and in FIG .3a and 3b the firing of the fifth salvo V are shown schematically.
  • each of the volleys l-V three (by way of example) decoys 4 are fired at the same time, which are arranged in a row (cf. FIGS. 1 b, 2b and 3b) and which each generate a decoy sub-cloud after activation of their active masses.
  • the wind 6 blows obliquely from the front in the embodiment shown, so that, viewed in the wind direction, the ship 1 has a relatively narrow width B (B is also referred to below as the projected width designated). Therefore, the decoy cloud to cover the ship 1 can be relatively narrow, which should be taken into account when choosing the number of decoys 4 per salvo 1-V and when choosing the number of salvo 1-V.
  • the time interval of the volleys IV fired from the decoy launcher 5 is now selected such that the individual volleys IV can always be fired into the same area 7 on the windward side, ie the time interval of the volleys IV must be selected such that before the arrival of the Decoy 4 of a new salvo ll-V the decoy sub-cloud of the previous salvo l-IV was pushed ver by the wind 6 in the direction of the ship 1.
  • the number of volleys IV on decoys 4 is chosen such that after the firing of all decoys 4 a sequence a homogeneous and complete concealment of the Ship 1 results (Fig.3b).
  • the effectiveness of the decoy cloud can be checked at the same time with the "Top Attack” sensor 2, since this sensor 2 can then no longer detect the laser beam 8 or, if necessary, detect its scattered radiation.
  • the method according to the invention is of course not limited to the protection of ships 1 or other vehicles, but can also be used to protect buildings etc. from approaching laser-guided threats 3.

Landscapes

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

Abstract

L'invention a pour objectif de rendre possible simplement une protection d'objets (1) mobiles ou immobiles contre des menaces guidées par laser (3) qui s'approchent de l'objet (1) notamment par le haut. Selon l'invention, cet objectif est réalisé en allumant les masses actives d'un nombre correspondant d'objets formant leurre (4) dans une plage de hauteur pouvant être prédéterminée du côté au vent de l'objet (1) à protéger, de sorte que le ou les nuages d'objets formant leurre qui se forment dans cette plage de hauteur sont déplacés au-dessus de l'objet (1) à protéger par la force du vent agissant sur ceux-ci et le recouvrent ensuite.
EP19801326.0A 2018-12-10 2019-11-08 Procédé de protection d'objets mobiles ou immobiles contre des menaces guidées par laser qui s'approchent Pending EP3894779A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018131524.4A DE102018131524A1 (de) 2018-12-10 2018-12-10 Verfahren zum Schutz von beweglichen oder unbeweglichen Objekten vor sich nähernden lasergelenkten Bedrohungen
PCT/EP2019/080684 WO2020120041A1 (fr) 2018-12-10 2019-11-08 Procédé de protection d'objets mobiles ou immobiles contre des menaces guidées par laser qui s'approchent

Publications (1)

Publication Number Publication Date
EP3894779A1 true EP3894779A1 (fr) 2021-10-20

Family

ID=68503155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19801326.0A Pending EP3894779A1 (fr) 2018-12-10 2019-11-08 Procédé de protection d'objets mobiles ou immobiles contre des menaces guidées par laser qui s'approchent

Country Status (4)

Country Link
US (1) US20220026181A1 (fr)
EP (1) EP3894779A1 (fr)
DE (1) DE102018131524A1 (fr)
WO (1) WO2020120041A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020103249B4 (de) 2020-02-10 2022-02-03 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zum Schützen eines Helikopters durch Nebelwurf und Helikopter mit Nebelschutzsystem

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004001531U1 (de) * 2004-02-02 2004-05-19 Buck Neue Technologien Gmbh Objektschutzsystem zum Schützen von Objekten

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NO168669C (no) * 1989-05-10 1992-03-18 Raufoss As Anordning ved roeykskjermsystem
JPH0561692U (ja) * 1991-12-27 1993-08-13 三菱電機株式会社 発煙弾発射装置
JPH08271196A (ja) * 1995-03-30 1996-10-18 Mitsubishi Electric Corp おとり管制装置
DE19604745C1 (de) 1996-02-09 1999-11-18 Rheinmetall Ind Ag Verfahren und Anordnung zur Täuschung einer endphasengelenkten Munition
SE520197C2 (sv) * 2001-05-07 2003-06-10 Saab Ab Förfarande för utmatning av IR-och radarmotmedel och/eller laserreflektorer ur en därför avsedd fällare, samt för utmatning av dylika motmedel eller reflektorer avsedd fällare
DE10346001B4 (de) 2003-10-02 2006-01-26 Buck Neue Technologien Gmbh Vorrichtung zum Schützen von Schiffen vor endphasengelenkten Flugkörpern
DE102004005105A1 (de) * 2004-02-02 2005-09-01 Buck Neue Technologien Gmbh Objektschutzsystem und Verfahren zum Schützen von Objekten
GB2410786B (en) * 2004-02-06 2007-04-18 Buck Neue Technologien Gmbh Method and apparatus for protection of battlefield vehicles
EP2204632A1 (fr) * 2008-12-31 2010-07-07 Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO Procédé d'application de déploiement de neutralisation par déroutement, système de déploiement de neutralisation par déroutement et produit de programme informatique
US8164037B2 (en) 2009-09-26 2012-04-24 Raytheon Company Co-boresighted dual-mode SAL/IR seeker including a SAL spreader
DE102010032458A1 (de) 2010-06-11 2011-12-15 Rheinmetall Waffe Munition Gmbh Aktive Täuschkörper gegen Radarquellen sowie Verfahren zum Schutz von Objekten mit Hilfe derartiger Täuschkörper
DE102010036026A1 (de) * 2010-08-31 2012-03-01 Rheinmetall Waffe Munition Gmbh Vorrichtung und Verfahren zur Bestimmung der Effektivität einer Nebelwand zur Erzeugung einer wirksamen Nebelwolke
WO2012028257A1 (fr) 2010-08-31 2012-03-08 Rheinmetall Waffe Munition Gmbh Dispositif et procédé pour générer un mur ou un nuage de brouillard actif
DE102015002737B4 (de) 2015-03-05 2023-05-25 Rheinmetall Waffe Munition Gmbh Verfahren und Vorrichtung zum Bereitstellen eines Scheinzieles zum Schutz eines Fahrzeuges und/oder Objektes vor radargelenkten Suchköpfen
JP6401118B2 (ja) * 2015-07-10 2018-10-03 三菱重工業株式会社 チャフ雲の制御方法およびチャフ雲の制御システム
DE102015015938A1 (de) 2015-12-08 2017-06-08 Werner Schrimpf Autonome, unbemannte Fluggeräte zur Begleitung, Eskortierung und Absicherung von Lutffahrzeugen wie Starr- und Drehflügler
DE102018110241A1 (de) * 2018-04-27 2019-10-31 Rheinmetall Waffe Munition Gmbh Verfahren und Vorrichtung zum Schutz eines Fahrzeugs vor einer Bedrohung

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DE202004001531U1 (de) * 2004-02-02 2004-05-19 Buck Neue Technologien Gmbh Objektschutzsystem zum Schützen von Objekten

Also Published As

Publication number Publication date
WO2020120041A1 (fr) 2020-06-18
DE102018131524A1 (de) 2020-06-10
US20220026181A1 (en) 2022-01-27

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