EP0833122A1 - Zielsuchkopf eines Flugkörpers - Google Patents

Zielsuchkopf eines Flugkörpers Download PDF

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Publication number
EP0833122A1
EP0833122A1 EP97402097A EP97402097A EP0833122A1 EP 0833122 A1 EP0833122 A1 EP 0833122A1 EP 97402097 A EP97402097 A EP 97402097A EP 97402097 A EP97402097 A EP 97402097A EP 0833122 A1 EP0833122 A1 EP 0833122A1
Authority
EP
European Patent Office
Prior art keywords
photosensitive
light
target
seeker
seeker according
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.)
Granted
Application number
EP97402097A
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English (en)
French (fr)
Other versions
EP0833122B1 (de
Inventor
Jacques Roze Des Ordons
Jean-Pierre Merle
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.)
Aerospatiale Matra
Original Assignee
Airbus Group SAS
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 Airbus Group SAS filed Critical Airbus Group SAS
Publication of EP0833122A1 publication Critical patent/EP0833122A1/de
Application granted granted Critical
Publication of EP0833122B1 publication Critical patent/EP0833122B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G7/00—Direction control systems for self-propelled missiles
    • F41G7/20—Direction control systems for self-propelled missiles based on continuous observation of target position
    • F41G7/22—Homing guidance systems
    • F41G7/226—Semi-active homing systems, i.e. comprising a receiver and involving auxiliary illuminating means, e.g. using auxiliary guiding missiles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G7/00—Direction control systems for self-propelled missiles
    • F41G7/20—Direction control systems for self-propelled missiles based on continuous observation of target position
    • F41G7/22—Homing guidance systems
    • F41G7/2273—Homing guidance systems characterised by the type of waves
    • F41G7/2293—Homing guidance systems characterised by the type of waves using electromagnetic waves other than radio waves

Definitions

  • the present invention relates to a seeker mounted on a flying body, and intended to determine orders to guide said body flying towards a target.
  • a laser illuminator for example a laser rifle, which emits flashes of light corresponding to pulses short, time-coded and frequency-illuminated lights determined (s), on said target so as to illuminate it.
  • the seeker detects the flashes of light that are reflected by the target and it determines their direction of reflection which corresponds to the direction of the target, which then allows to calculate the guidance orders of said body steering wheel.
  • the seeker uses a reduced field sensor, which is mounted on a platform of orientation and stabilization of the line of sight of said sensor.
  • the object of the present invention is to remedy these drawbacks. It concerns a cost-effective seeker, allowing to guide, in a simple and precise way, a body flying towards a target.
  • said photosensitive detector which includes a matrix of specified photosensitive sensors below, and which thus presents a large field susceptible to cover the entire target detection area and optically discriminate different parts of said area detection, said photosensitive detector can be mounted at fixed position on the flying body, which avoids having to set up an orientation and stabilization platform and therefore overcomes the aforementioned drawbacks.
  • said photosensitive detector is a detector charge transfer device type matrix (DTC in French or CCD "Charge Coupled Devices" in English).
  • said identification system of flashes of light includes a photosensitive diode likely to detect light flashes from said scene located at the front of the flying body and means likely to determine, among said luminous flashes detected, those from the designated target, which allows to obtain a simple, precise and little identification system expensive.
  • said detection system target has a shutter that closes the field of vision of the target location system, said shutter being controlled so as to release said field of vision each time once a light burst from said target is expected, which avoids putting said locating system target in continuous service and helps protect it against damaging light beams when it is not not in use.
  • said identification system of light flashes is likely to detect a characteristic illumination variation, which is greater to a predefined variation, of at least one of said sensors photosensitive.
  • said identification system of flashes of light monitors the electric current consumed by each of said photosensitive sensors, any increase of said electrical current consumed, which is greater than a predefined increase, indicating a variation in illumination feature.
  • said identification system of light flashes monitors the binary state of said sensors photosensitive, any change from binary state to a state representing the detection of a luminous flash indicating a characteristic lighting variation.
  • said system identification of flashes of light includes a first shift register network capable of transmitting the binary state of all the photosensitive sensors of the photosensitive detector.
  • said location system advantageously makes it possible to locate on the matrix of the photosensitive detector the position of each photosensitive sensor which detects a light burst.
  • said location system comprises a second network of shift registers, allowing transmit the binary state in serial according to a predefined order of all photosensitive sensors, the order of each photosensitive sensor in the transmission series being representative of its position on the matrix.
  • said location system advantageously comprises a calculation means making it possible to determine a central position from the localized positions of all the photosensitive sensors having detected a light burst.
  • Figure 1 schematically illustrates a seeker according to the invention and mounted on a flying body.
  • Figure 2 shows a first embodiment of a detection system of a seeker according to the invention.
  • Figure 3 shows a second embodiment of a detection system of a seeker according to the invention.
  • Figure 4 shows schematically a photosensitive detector of said second embodiment.
  • Figure 5 illustrates, as a function of time, the operations produced in accordance with the invention, by a system of detection of a seeker.
  • Figure 6 schematically shows a photosensitive sensor of the photosensitive detector of figure 4.
  • Figure 7 illustrates the processing of an electrical signal by a processing means of the photosensitive sensor of the figure 6.
  • the seeker 1 according to the invention is mounted on a flying body M, for example a missile, of which only schematically represented the front part in FIG. 1.
  • said target C is illuminated by means of a illuminator not shown, by EL light flashes corresponding to short, coded pulses, emitted generally at constant and predefined time intervals, as assumed in this example.
  • the SD1 or SD2 target detection system identifies among all the light beams received said EL light flashes from target C, i.e. reflected by this last after its illumination, and it determines the direction.
  • said target can also emit itself said light flashes to indicate to the flying body the direction to follow to reach it.
  • the above-mentioned elements SI1, SL1, D1 and 6 correspond to the essential elements of a first embodiment SD1 of the detection system, shown in Figure 2, while the elements SI2, SL2, D2 and 7 correspond to those of a second embodiment SD2 shown in FIG. 3.
  • the photosensitive detector D1 or D2 is fixed, seefinder A does not require stabilization platform (which is complex and expensive), as is the case for known seekers.
  • Said SI1 system transmits the electrical signals generated by the photosensitive diode 10 to the calculation unit 9 by a link 12.
  • said calculation unit 9 is likely to identify said target C, in the manner described below with reference to the second embodiment in Figure 3.
  • the detection system SD1 also includes a shutter 13 which is mounted at the front of the SL1 system on the line of sight AV so as to block the detector's field of vision photosensitive D1.
  • said shutter 13 closes, in operation normal, said field of vision and it only releases it when the computing unit 9 announces to him, via a link 14, that a target C has been identified by the system SI1.
  • said field of vision is released when EL light burst from target C is expected to so the photosensitive detector D1 can then detect this EL light burst and the SD1 system can deduce the location of target C.
  • the detection system SD2 is a unique system, in which the SI2 identification system and the location SL2 both include said detector photosensitive D2, as specified below with reference to Figure 4.
  • Said detection system SD2 comprises, in addition to said photosensitive detector D2 and of said focusing means 7, a central unit 15 which is connected by a link 16 to the photosensitive detector D2, which controls the elements essentials of said photosensitive detector D2, represented on Figure 4 and specified below, which includes the case appropriate some of these elements and who receives and processes the results generated by them.
  • the photosensitive detector D2 includes photosensitive sensors H arranged as a matrix.
  • Said photosensitive sensors H are interconnected in rows L1, L2, L3, L4, L5 and in columns C1, C2, C3, C4.
  • said identification system SI2 detects any variation in the illumination of one of said sensors photosensitive H, which is greater than a predefined value and which is characteristic of the illumination of said sensor photosensitive H by an EL luminous brightness.
  • said identification system SI2 monitors the binary state specified below of all said photosensitive sensors H also specified below, so any changes state, state 0 (or state not illuminated by a flash EL light) to state 1 (or state illuminated by a flash EL), is considered as a variation of illumination characteristic, i.e. is representative of the EL light flash detection.
  • system identification is trained to monitor the electric current consumed by each of said sensors photosensitive H, any increase in said electric current consumed, which is greater than a predefined increase, then indicating a characteristic variation in illumination.
  • said identification system SI2 includes plus a means 27 connected by a link 28 to the means 26, for identify said target C which reflects flashes of light EL at constant and predefined time intervals T.
  • said location system SL2 comprises, according to the invention, a network 29 of shift registers connected respectively to columns C1, C2, C3 and C4 of photosensitive detector D2 by links 30 to 33, said network 29 making it possible to transmit in series, in an order preset, the binary state of all photosensitive sensors H, the order of each photosensitive sensor H in the transmission series being representative of its position on said matrix.
  • the localization system SL2 further comprises, according to the invention, a means of calculation 35 linked by a link 36 to the network 29 and determining a central position from localized positions of all photosensitive sensors H which have detected a EL light burst.
  • FIG. 5 is a diagram illustrating, as a function of time t , the different stages of such a process of identification and localization of a target C by means of the detection system SD2.
  • the identification system SI2 upon detection, is on standby and the SL2 location system is out of service.
  • the different illuminations Il to I6 have been detected as a function of time t respectively at times tl to t6, by the photosensitive detector D2 and corresponding to light flashes EL received.
  • the identification has been illustrated, by means of the SI2 identification system, among all the illuminations I1 to I6 detected, of those coming from the target C, i.e. those that are separated by a time T.
  • the durations T1 between t1 and t2 and T3 between t2 and t3 are less than T, and since, on the other hand, the duration T2 between t1 and t3 is greater than T, the couples I1 / I2, I1 / I3 and I2 / I3 do not correspond to two illuminations reflected by target C.
  • the duration between times t2 and t4 is equal to T, of course taking into account the margins of error possible.
  • FIG. 6 one of the photosensitive sensors has been represented. H used in the D2 compliant photosensitive detector to the invention.
  • the photosensitive sensor H allows thus, in particular, to detect pulses with low intensity, emitted or reflected by a target C located at great distance from said photosensitive sensor H and therefore from said flying body M.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Golf Clubs (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Escalators And Moving Walkways (AREA)
  • Electronic Switches (AREA)
  • Photovoltaic Devices (AREA)
  • Magnetic Heads (AREA)
  • Road Signs Or Road Markings (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
EP97402097A 1996-09-25 1997-09-10 Zielsuchkopf eines Flugkörpers Expired - Lifetime EP0833122B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9611657 1996-09-25
FR9611657A FR2753785B1 (fr) 1996-09-25 1996-09-25 Autodirecteur d'un corps volant

Publications (2)

Publication Number Publication Date
EP0833122A1 true EP0833122A1 (de) 1998-04-01
EP0833122B1 EP0833122B1 (de) 2003-12-17

Family

ID=9496040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97402097A Expired - Lifetime EP0833122B1 (de) 1996-09-25 1997-09-10 Zielsuchkopf eines Flugkörpers

Country Status (8)

Country Link
US (1) US6003810A (de)
EP (1) EP0833122B1 (de)
AT (1) ATE256852T1 (de)
DE (1) DE69726812T2 (de)
ES (1) ES2210473T3 (de)
FR (1) FR2753785B1 (de)
IL (1) IL121804A (de)
NO (1) NO317325B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008018061A1 (en) * 2006-08-06 2008-02-14 Israel Aerospace Industries Ltd. A method and system for designating a target and generating target-related action
WO2008060662A2 (en) * 2006-04-12 2008-05-22 Lockheed Martin Corporation Dual fov imaging semi-active laser system

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2810410B1 (fr) * 2000-06-19 2005-02-25 Aerospatiale Matra Missiles Dispositif de localisation d'un objet et application
FR2839363B1 (fr) * 2002-05-06 2004-07-16 Mbdam Procede pour extraire une zone illuminee d'une matrice de photocapteurs d'un dispositif de detection lumineuse et dispositif de detection lumineuse mettant en oeuvre ce procede
DE102004029343B4 (de) * 2004-06-17 2009-04-30 Diehl Bgt Defence Gmbh & Co. Kg Zielführungsvorrichtung für ein Fluggerät
ATE481618T1 (de) 2005-09-28 2010-10-15 Saab Ab Lasersuchkopf
US7578432B2 (en) * 2005-12-07 2009-08-25 Bml Medrecords Alert Llc Method for transmitting medical information identified by a unique identifier barcode to a hospital
FR2908874B1 (fr) * 2006-11-21 2009-01-23 Mbda France Sa Systeme de visee a ecartometre integre.
US10880035B2 (en) * 2009-07-28 2020-12-29 The United States Of America, As Represented By The Secretary Of The Navy Unauthorized electro-optics (EO) device detection and response system
US9207053B2 (en) * 2013-06-21 2015-12-08 Rosemount Aerospace Inc. Harmonic shuttered seeker
RU2530225C1 (ru) * 2013-10-09 2014-10-10 Открытое акционерное общество "Конструкторское бюро приборостроения им. академика А.Г. Шипунова" Способ селекции импульсов и селектор импульсов полуактивной головки самонаведения
RU2583868C2 (ru) * 2014-08-29 2016-05-10 Открытое акционерное общество "Корпорация "Тактическое ракетное вооружение" Способ захвата цели лазерной головкой самонаведения беспилотного летательного аппарата
FR3050814B1 (fr) * 2016-04-29 2019-06-07 Airbus Helicopters Procede et dispositif d'aide a la visee pour le guidage laser d'un projectile

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US4143835A (en) * 1972-09-12 1979-03-13 The United States Of America As Represented By The Secretary Of The Army Missile system using laser illuminator
DE3338191A1 (de) * 1982-10-21 1988-02-04 Messerschmitt Boelkow Blohm Lenkverfahren fuer flugkoerper
EP0508905A1 (de) * 1991-04-11 1992-10-14 SAT (Société Anonyme de Télécommunications) Verfahren zur Selbstlenkung eines Flugkörpers gegen ein Ziel mittels Entfernungsmessungen
US5280167A (en) * 1992-06-18 1994-01-18 Her Majesty The Queen As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Very high angular resolution laser beam rider detector having a gated image intensifier and a video camera
EP0770884A1 (de) * 1995-10-27 1997-05-02 Thomson-Csf Verfahren zur Erkennung mittels Laserbezeichnung und entsprechende Vorrichtung zur Winkelabweichungsmessung mit einem Matrixdetektor

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US4143835A (en) * 1972-09-12 1979-03-13 The United States Of America As Represented By The Secretary Of The Army Missile system using laser illuminator
DE3338191A1 (de) * 1982-10-21 1988-02-04 Messerschmitt Boelkow Blohm Lenkverfahren fuer flugkoerper
EP0508905A1 (de) * 1991-04-11 1992-10-14 SAT (Société Anonyme de Télécommunications) Verfahren zur Selbstlenkung eines Flugkörpers gegen ein Ziel mittels Entfernungsmessungen
US5280167A (en) * 1992-06-18 1994-01-18 Her Majesty The Queen As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Very high angular resolution laser beam rider detector having a gated image intensifier and a video camera
EP0770884A1 (de) * 1995-10-27 1997-05-02 Thomson-Csf Verfahren zur Erkennung mittels Laserbezeichnung und entsprechende Vorrichtung zur Winkelabweichungsmessung mit einem Matrixdetektor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008060662A2 (en) * 2006-04-12 2008-05-22 Lockheed Martin Corporation Dual fov imaging semi-active laser system
WO2008060662A3 (en) * 2006-04-12 2008-12-31 Lockheed Corp Dual fov imaging semi-active laser system
WO2008018061A1 (en) * 2006-08-06 2008-02-14 Israel Aerospace Industries Ltd. A method and system for designating a target and generating target-related action
US8054451B2 (en) 2006-08-06 2011-11-08 Israel Aerospace Industries Ltd. Method and system for designating a target and generating target-related action

Also Published As

Publication number Publication date
NO974383D0 (no) 1997-09-23
NO974383L (no) 1998-03-26
DE69726812D1 (de) 2004-01-29
FR2753785A1 (fr) 1998-03-27
ES2210473T3 (es) 2004-07-01
IL121804A (en) 2000-02-17
DE69726812T2 (de) 2004-11-04
ATE256852T1 (de) 2004-01-15
US6003810A (en) 1999-12-21
EP0833122B1 (de) 2003-12-17
IL121804A0 (en) 1998-02-22
FR2753785B1 (fr) 1998-11-13
NO317325B1 (no) 2004-10-11

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