WO2008141800A1 - Dispositif et procédé de détection et de localisation de sources de rayonnement laser - Google Patents

Dispositif et procédé de détection et de localisation de sources de rayonnement laser Download PDF

Info

Publication number
WO2008141800A1
WO2008141800A1 PCT/EP2008/004030 EP2008004030W WO2008141800A1 WO 2008141800 A1 WO2008141800 A1 WO 2008141800A1 EP 2008004030 W EP2008004030 W EP 2008004030W WO 2008141800 A1 WO2008141800 A1 WO 2008141800A1
Authority
WO
WIPO (PCT)
Prior art keywords
grating
detector
laser
diffraction
laser radiation
Prior art date
Application number
PCT/EP2008/004030
Other languages
German (de)
English (en)
Inventor
Hermann Diehl
Andreas Prücklmeier
Thorsteinn Halldorsson
Wolfgang Rehm
Original Assignee
Eads Deutschland 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 Eads Deutschland Gmbh filed Critical Eads Deutschland Gmbh
Publication of WO2008141800A1 publication Critical patent/WO2008141800A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/783—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/782—Systems for determining direction or deviation from predetermined direction
    • G01S3/783—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems
    • G01S3/784—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived from static detectors or detector systems using a mosaic of detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/495—Counter-measures or counter-counter-measures using electronic or electro-optical means

Definitions

  • the invention relates to a device for detecting, locating and tracking of laser radiation sources in the image field of a camera with superior optical coherence filter and associated with the camera signal processing and a method for detecting, locating and tracking of laser radiation sources with such a device.
  • laser devices are used in the military field for a variety of purposes, to protect and initiate countermeasures against laser threats sensors are required that can detect and locate such laser sources. Such devices are e.g. from the applications DE 33 23 828 C2 or DE 35 25 518 C2, for the detection and localization of
  • Pulse laser sources as z For example, be used for rangefinder, target illuminator or glare laser, and from EP 0283538 A1, which in addition also the radiation of modulated continuous wave lasers, e.g. which can detect laser beam riders known.
  • laser radiation of both military and civil systems of this kind is mostly in the near infrared range and thus can not be perceived by the human eye. Since the laser wavelength of a threat is usually unknown, a laser warning sensor designed for reception in this range must have a sufficient spectral reception bandwidth. This then makes it difficult to identify the narrowband laser radiation among the broadband natural and technical sources of the environment. Therefore, laser sources with most laser warning sensors are the timing of their emission relative to incoherent sources. For example, because of the emission duration of their individual pulses of nanoseconds, rangefinders, target illuminators and glare lasers can be distinguished even from the fastest incoherent sources, such as flash units with a duration in microseconds. On the other hand, the modulated CW radiation from laser beam riders can be detected due to their fixed modulation frequencies by frequency sampling in the time period.
  • the angle of incidence of the laser beam or the position of the beam source in the vicinity must be determined with sufficient accuracy by the sensor for initiating a passive or active countermeasure.
  • different directions of incidence can first be determined with an array of photodetectors and shadow masks that individually determine their viewing direction, as in U.S. Patent 5,428,215 Digital High Angular Resolution Laser Irradiation Detector (HARLID), or by time of flight coding of incident short laser pulses over glass fibers of different lengths as described in the German patent DE 3525518 C2 device for detection and direction detection of laser radiation described.
  • HTLID Digital High Angular Resolution Laser Irradiation Detector
  • a prerequisite for the usability of laser warning sensors is a high detection probability of laser threats with simultaneously low false alarm rate due to other optical and electronic interference, which requires the largest possible receiving aperture of the sensor.
  • the receiving area of the photodiodes should be as small as possible in order to resolve fast light signals and at the same time to achieve a high directional resolution.
  • a compromise between these contradictory requirements can be found in time-resolved laser warning sensors only by a very complex signal processing.
  • the device according to the invention provides for this instead of the use of individual detectors or detector arrays with shadow masks as entrance pupil and in previous warning sensors a camera system with lens and image sensor (Focal Plane Array) before.
  • This has the fundamental advantage that the direction of incidence of a laser threat is directly determined by mapping the environment onto the image sensor, and that the size of the entrance pupil can be set variably by the objective diameter together with the objective diaphragm.
  • the entrance pupils of a camera system used in this case are far larger than the previous laser warning sensors.
  • the invention makes use of the two fundamental properties of a laser source, namely its spatial and temporal coherence, and uses a camera system with a superior coherence filter for its evaluation, which leads to different imaging of coherent and incoherent sources in the image plane of the camera.
  • a laser threat is a radiation source with a high spatial coherence, because the image size of a laser source at a great distance from a camera is a point with an extent that corresponds to the limit of the imaging resolution of the camera.
  • temporal coherence is used to safely distinguish lasers from other sources.
  • the distinction of the temporal coherence which is equivalent to the spectral bandwidth of the radiation, now takes place in the sense of the invention in that a spectrum analyzer arranged in front of the camera lens is provided, which is designed as a linear holographic transmission grating, ie a grating.
  • incoherent point sources are then displayed as a bar pattern, the temporally coherent laser point sources of the threats on the other hand still due to their low spectral bandwidth as a dot pattern.
  • Areal incoherent or coherent sources continue to be rendered as diffuse images.
  • a subsequent image processing which is designed for the distinction of point and line or point in the diffuse background, then used.
  • linear grating bar or strip grating
  • a holographic cross-grating i. a 2-dimensional grid
  • the decisive advantages of easier manufacturability the higher light intensity in the individual orders by about a factor of 3, the same hologram, the same lattice constant and the same order number and the considerably simpler image processing of the diffraction patterns.
  • the linear grating Apart from the fundamentally different interpretation of the linear grating, it brings a significant progress in comparison to the cross grid.
  • ⁇ o is the angle of incidence of a light beam in the plane of incidence perpendicular to the grating
  • ⁇ the angle of incidence of a light beam in the plane of incidence perpendicular to the grating
  • Monochromatic point sources are represented as points along a line perpendicular to the stripes of the grating as sharp intensity maxima in the image plane, e.g. imaged as a broadband point sources, however, as extended strokes and can thus be distinguished from each other.
  • Sources such as Reflexes in the immediate vicinity of the sensor are distributed in their form as a multiple direct image in different orders in their intensity on them.
  • the zeroth order of the diffraction pattern lies on the main axis of the incident light wave, ie it passes through the grating without diffraction. This direction is also the symmetry direction of the diffraction pattern of higher orders. The direction to the radiation source can thus be determined clearly from the diffraction pattern.
  • the diffraction angle shifts with the wavelength according to the formula ⁇ n / g ⁇ ⁇ / cos ⁇ , ie the central wavelength of the light source can be determined from the angular position of the diffraction maxima and the spectral bandwidth of the source from the angular width of the spectral line.
  • Lattice spacings increases the wavelength resolution, at the same time the diffraction angle.
  • a grating with a fixed grating pitch g and regular arrangement of the diffraction orders may be preferred.
  • the use of a grating with two different grating constants g and g ' in the same grating, ie a bimodal grating with only slightly different values for g and g ' leads to the formation of pairs of points in the orders +/- 1, + / in coherent sources. -2, .... etc. But not in the zeroth order, in which no spectral decomposition takes place.
  • a lattice is particularly advantageous for a clear distinction between zeroth and higher orders and moreover for distinguishing between electronic disturbances which may also appear as dots in the image.
  • pairs of points whose angular spacing in the various orders can be calculated by the above formula are, for example, preferably set so that the points, for example in the first order, are only a few pixels apart (eg a few nanometers).
  • the grating gratings provided for the coherence detector are preferably so-called holographic gratings which can be written as master holograms by optical exposure or by electron beam lithography, from which hologram copies can then be made in high numbers at low cost using etching techniques, embossing technique or reexposure.
  • holographic gratings which can be written as master holograms by optical exposure or by electron beam lithography, from which hologram copies can then be made in high numbers at low cost using etching techniques, embossing technique or reexposure.
  • there are two classes of holograms first so-called surface relief holograms and second, volume-phase holograms, where an incident wave is diffracted by the differently long paths in the relief structure in the first and by structured variations of the refractive index in the second.
  • Holograms of the first type can be incorporated in a variety of optical material carriers, such as glasses, plastics, photoresist or the like. Reflection gratings can be produced by additional metallization of the surface.
  • volume phase holograms can only be included in materials suitable for volume hologram exposure, such as silver halides, dichromated gelatin, or photopolymer as both transmission and reflection holograms.
  • a coherence sensor for a coherence sensor according to the invention commercial lenses, standard lenses and wide-angle lenses can be used.
  • the grating hologram is preferably mounted directly in front of the lens. Parallel rays from a point source are then, after passing through the grid, as a Heights of parallel rays with different angles to the lens, each parallel beam from a coherent source is imaged as a point in the focal plane of the camera.
  • the entire diffraction pattern shifts with a parallel offset across the focal plane.
  • the common axis of the orders is perpendicular to the grating and can be rotated arbitrarily with the grating against the main directions of the focal plane array. If the source lies on the edge of the field of view of the camera, then orders are still far within the field. If the source is outside the field of view, then orders are bent into the field of view of the camera over a certain angular range and imaged, i. the grid enlarges the field of view of the camera for point sources.
  • the invention provides that with a wide-angle attachment optics (fisheye attachment) the angular range of a standard lens can be extended to 180 ° x 360 °.
  • the grille is preferably mounted between the header and the standard lens.
  • the inevitable image distortion of the intent then has no effect on the imaging of the diffraction orders by the standard lens, only the diffraction pattern as a whole then follows the distortion of the image field.
  • another embodiment of a fisheye optic may be used which is not designed as a face optic of a standard lens but as a unitary optic of the camera.
  • the grating can be integrated either before or between lenses of this optics.
  • the invention provides a further variant for increasing the angle of view, which dispenses with a wide-angle optics but a redesign of the grating Intent.
  • This may, for example, be a cylindrical grating with circular stripes mounted coaxially with the axis of a standard lens in front of it. This grid diffracts a portion of orders of rays outside the field of view into the field of view and thus they can be evaluated.
  • wavelength range 3-5 ⁇ m are infrared cameras with platinum silicide (PtSi) or indium antimonide (ln: Sb) detectors and in the wavelength range 8-12 ⁇ m mercury cadmium telluride (HgCdTe) or microbolometer cameras based on amorphous silicon on the Market available. Some of these detectors require additional cooling or temperature stabilization.
  • PtSi platinum silicide
  • Ln indium antimonide
  • HgCdTe mercury cadmium telluride
  • microbolometer cameras based on amorphous silicon on the Market available.
  • suitable fast electronics are advantageously provided which are connected to the camera and which evaluate the acquired individual images in real time with an image processing algorithm implemented thereon.
  • ASIC or FPGA programmable gate array
  • the invention provides that the proposed sensor can be used both for continuous wave laser threats and for pulsed laser threats, because in addition to the large receiving aperture, a camera has a long integration time of 10-50 ms and with the distribution of the light reception to only a few orders, for example A proportion of 20-33% remains distributed in each pixel, which enables the detection of particularly weak-light modulated continuous wave sources.
  • the large receiving pupil additionally enables the detection of pulsed laser threat.
  • Each pulse is recorded by the camera within its exposure time, because in modern cameras so-called dead times, which can arise during reading of the image sensor, are avoided. Thus, a continuous reception of the camera for short pulses is guaranteed.
  • the camera can distinguish between single pulse threats (laser rangefinder) and threats with low pulse frequencies of 10-20Hz (target illuminator) and determine the pulse rate. For the recording of higher frequencies in the kilohertz range, a higher refresh rate is required, which is also made possible by some cameras.
  • the invention provides that the refresh rate of the camera is sufficiently high to detect the movement of the threat within the viewing angle of the laser warning sensor, either by the movement of the threat itself or by the movement of the platform on which the laser warning sensor is mounted - to track for a warning or countermeasures.
  • a sufficient image repetition frequency of the camera according to the invention ensures that from the temporal changes of the diffraction pattern and the diffraction angles ⁇ n , the current coordinates, the speed and, if necessary, the direction of movement of the threat can be calculated. As long as the threat If the laser beam falls within the viewing angle of the laser warning sensor, the position of the threat, which itself may be mobile, can be detected and tracked in time. If necessary, a warning or countermeasures can be initiated.
  • the invention further provides that either the laser warning sensor alone provides the necessary image information, or that the coordinates of the laser threat in the field of view from other camera images of the same environment, e.g. an identical camera without a grid attachment, an IR camera or a night-vision camera.
  • a method for image processing of the images obtained with the device according to claim 1 wherein the diffraction orders of the strip grid are imaged on the formed as areal matrix detector detector in the focal plane of the optics and connected to the detector electronic signal evaluation is designed such that distinction can be made between point-like and line-shaped luminous points of the diffraction order, the method comprising the following steps:
  • Such criteria may be: local contrast, roundness of the point, size, etc.
  • the center is determined with subpixel accuracy.
  • diffraction patterns could include diffraction patterns.
  • the points of such a diffraction pattern lie relative to each other at exactly definable points in the image.
  • these locations can be accurately determined to a few 1/10 pixels. Due to the subpixel accurate determination of the point centers, misallocations can be prevented / reduced.
  • Fig. 2 shows the 0th, +/- 1st, and 2nd order of a fringe grid having a fixed grating constant of an incoherent source as fringes;
  • Fig. 3 The 0th, +/- 1st, and 2nd order of a stripe grid with two different fixed lattice constants of a coherent source as colons;
  • FIG. 4 shows the 0th, +/- 1st and 2nd order of a stripe grating with two different fixed grating constants of an incoherent source as a double stripe;
  • 5a shows a cross-section of a sensor with a strip grid in front of a standard optics
  • 5b shows a cross-section of a sensor with a wide-angle attachment placed in front of the strip grid and the standard optics
  • Figure 6 shows the 0 th, +/- 1 th and +/- 2 nd order of a band grating with the aid of a standard objective on the image sensor matrix
  • FIG. 7 shows the mapping of 0th, +/- 1st, and +/- 2nd order of a strip grating with the aid of a panoramic optical system
  • FIG. 8a shows a cross-section of the beam path in the illustration of the + 1st, Oth and -1st orders through the standard objective strip grid
  • Fig. 8c Cross-section of the beam path in the illustration of the + 1th, 0th and -1st orders through the strip grid with a cylindrical strip grid attachment in front of the standard objective.
  • FIG. 1 shows a device 1 for detecting, locating and tracking laser radiation sources, in which the 0th, +/- 1st, and 2nd order of a lattice grating 2 with a fixed lattice constant of a coherent laser source 8 is shown in FIG Points are imaged with a camera lens as optics 3 on the focal plane detector array of the camera as a detector 4.
  • the angle of incidence ⁇ 0 and the diffraction angle ⁇ n of +/- 1 th and +/- 2 nd order are plotted in the image.
  • Figure 2 shows a device 1 similar to that shown in Figure 1, in which the 0th, +/- 1st, and 2nd order of a strip grating 2 with a fixed grating constant of an incoherent source is striped with a camera lens the focal plane detector array of the camera are shown.
  • the angle of incidence ⁇ 0 and the diffraction angles ⁇ n of the +/- 1-th and +/- 2-th order are also marked in the image.
  • FIG. 3 shows a device 1 similar to that shown in FIG. 1, in which the 0th, +/- 1st and +/- 2nd order of a stripe lattice 2 with two different fixed lattice constants of a coherent source as colons a and b are formed in every order down to the 0th order.
  • FIG. 4 shows a device 1 similar to that shown in FIG. 1, in which the Oth, +/- 1st and +/- 2nd order of a stripe lattice 2 with two different fixed lattice constants of an incoherent source as double stripe A and B are formed in every order down to the 0th order.
  • Figure 5a shows a cross section of a sensor with a strip grid 2 in front of a standard optics 3
  • Figure 5b shows a cross section of a sensor with a before the strip grid 2 and the standard optics 3 vorcalledem wide-angle attachment (fisheye attachment) 6 with marked marginal rays of the image to the matrix sensor ,
  • FIG. 6 shows the illustration of 0th, +/- 1st, and +/- 2nd order of a strip grid with the aid of a standard objective on the image sensor matrix (focal plane array). Shown are some possible cases of mapping the orders, top twice in the image where all orders are mapped within the sensor matrix, the third case where the 0th order is just mapped to the edge of the matrix and only the -1th and -2 -th order lie within the sensor. The fourth case shows the limiting case where the -2nd order hits the sensor. These borderline cases are still marked with a dashed line.
  • FIG. 7 shows the illustration of 0th, +/- 1st, and +/- 2nd order of a strip grating with the aid of a panoramic optic consisting of a pruning optic header placed on the strip grating and a standard objective on the image sensor matrix.
  • Plotted (gray) is the image field of the optics on the image sensor matrix with different angles of view to the optical axis of the optics and the mapping of the different orders of the stripe grid between the standard optics and the optics of coherent source for different cases of image position, with all or only some orders within the image field.
  • FIG. 8a shows a cross-section of the beam path in the illustration of the + 1th, 0th and -1st orders by means of a strip grid 2 with standard objective 3, FIG 8b when imaged by a fisheye lens 6 and FIG. 8c when imaged by a cylindrical lattice grille attachment 7 in front of the standard objective 3.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)

Abstract

Un dispositif (1) de détection, de localisation et de suivi de sources de rayonnement laser (8), comprenant un détecteur sensible au rayonnement dans un champ image d'une optique de reproduction (3), et une évaluation de signaux électronique connectée au détecteur (4), est caractérisé en ce qu'un réseau de diffraction configuré comme un treillis à traits (2) est disposé entre la source de rayonnement laser (8) et l'optique (3). L'invention concerne en outre un procédé de traitement d'image, à savoir des images obtenues au moyen du dispositif selon la revendication (1). On évite ainsi les inconvénients de l'état de la technique, et l'on dispose d'un dispositif et d'un procédé de détection et de localisation de sources de rayonnement laser détectant, avec une très faible puissance de rayonnement, une source laser, indépendamment de sa caractéristique de temps, et pouvant déterminer en même temps, sa position angulaire précise dans un angle de vision étendu du détecteur, et ceci avec une probabilité de détection élevée et un faible taux de fausse alarme.
PCT/EP2008/004030 2007-05-22 2008-05-20 Dispositif et procédé de détection et de localisation de sources de rayonnement laser WO2008141800A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007024051.3A DE102007024051B4 (de) 2007-05-22 2007-05-22 Vorrichtung und Verfahren zur Erkennung und Lokalisierung von Laserstrahlungsquellen
DE102007024051.3 2007-05-22

Publications (1)

Publication Number Publication Date
WO2008141800A1 true WO2008141800A1 (fr) 2008-11-27

Family

ID=39575574

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/004030 WO2008141800A1 (fr) 2007-05-22 2008-05-20 Dispositif et procédé de détection et de localisation de sources de rayonnement laser

Country Status (2)

Country Link
DE (1) DE102007024051B4 (fr)
WO (1) WO2008141800A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8442271B2 (en) 2008-11-12 2013-05-14 Eads Deutschland Gmbh Laser detection device and laser detection method
WO2016105693A1 (fr) * 2014-11-17 2016-06-30 Bae Systems Information And Electronic Systems Integration Inc. Unité remplaçable de ligne de contre-mesure de laser hybride et procédé de mise à jour à l'aide de celle-ci
WO2022253623A1 (fr) * 2021-05-31 2022-12-08 Valeo Schalter Und Sensoren Gmbh Dispositif de réception d'un dispositif de détection, dispositif de détection, véhicule comprenant au moins un dispositif de détection et procédé de fonctionnement d'au moins un dispositif de détection

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009046740B3 (de) * 2009-11-16 2011-07-14 OPTO-MST Sensoren und Systeme GmbH, 99099 Vorrichtung und Verfahren zum Lokalisieren von modulierten, optischen Strahlungsquellen
DE102009046742B4 (de) 2009-11-16 2013-04-11 Opto-Mst Sensoren Und Systeme Gmbh Vorrichtung zum Lokalisieren von modulierten Strahlungsquellen
DE102011015478B4 (de) * 2011-03-29 2012-10-25 Eads Deutschland Gmbh Vorrichtung und Verfahren zur Erfassung und Analyse von Laserstrahlung
EP2682776B1 (fr) 2012-07-07 2017-06-28 Airbus DS Electronics and Border Security GmbH Procédé de détection d'un rayonnement laser pulsé ainsi qu'avertisseur laser imagé
DE102012022258B4 (de) 2012-11-14 2017-03-16 Airbus Ds Electronics And Border Security Gmbh Sensor zur Erkennung und Lokalisierung von Laserstrahlungsquellen
EP3702803A1 (fr) 2019-02-27 2020-09-02 Jena Optronik GmbH Procédé et dispositif de détection d'un rayon laser incident sur un objet spatial

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2112244A (en) * 1981-12-18 1983-07-13 Pilkington Perkin Elmer Ltd Improvements in or relating to monitoring apparatus
DE3323828A1 (de) * 1983-07-01 1985-01-10 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Laserwarnsensor
DE3525518A1 (de) * 1984-12-20 1986-07-10 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Laserwarnsensor mit richtungserkennung
EP0283538A1 (fr) * 1987-03-26 1988-09-28 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Dispositif détecteur
GB2253902A (en) * 1984-02-18 1992-09-23 Ferranti Plc Detector apparatus for detecting coherent monochromatic point source radiation
US5428215A (en) * 1994-05-27 1995-06-27 Her Majesty The Queen In Right Of Canada, As Represented By Minister Of National Defence Of Her Majesty's Canadian Government Digital high angular resolution laser irradiation detector (HARLID)
US6118119A (en) * 1995-12-27 2000-09-12 Ruschin; Shlomo Spectral analyzer with wavelength and direction indicator
US6151114A (en) * 1998-03-31 2000-11-21 The Boeing Company Coherent laser warning system
FR2888333A1 (fr) * 1998-11-05 2007-01-12 Daimlerchrysler Ag Ag "dispositif de detection et de localisation de sources de rayonnement laser"

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19621195C1 (de) * 1996-05-25 1997-08-21 Leica Ag Verfahren und Vorrichtung zur Richtungsbestimmung zu einem Objekt

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2112244A (en) * 1981-12-18 1983-07-13 Pilkington Perkin Elmer Ltd Improvements in or relating to monitoring apparatus
DE3323828A1 (de) * 1983-07-01 1985-01-10 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Laserwarnsensor
GB2253902A (en) * 1984-02-18 1992-09-23 Ferranti Plc Detector apparatus for detecting coherent monochromatic point source radiation
DE3525518A1 (de) * 1984-12-20 1986-07-10 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Laserwarnsensor mit richtungserkennung
EP0283538A1 (fr) * 1987-03-26 1988-09-28 Messerschmitt-Bölkow-Blohm Gesellschaft mit beschränkter Haftung Dispositif détecteur
US5428215A (en) * 1994-05-27 1995-06-27 Her Majesty The Queen In Right Of Canada, As Represented By Minister Of National Defence Of Her Majesty's Canadian Government Digital high angular resolution laser irradiation detector (HARLID)
US6118119A (en) * 1995-12-27 2000-09-12 Ruschin; Shlomo Spectral analyzer with wavelength and direction indicator
US6151114A (en) * 1998-03-31 2000-11-21 The Boeing Company Coherent laser warning system
FR2888333A1 (fr) * 1998-11-05 2007-01-12 Daimlerchrysler Ag Ag "dispositif de detection et de localisation de sources de rayonnement laser"
DE19851010A1 (de) * 1998-11-05 2007-06-14 Eads Deutschland Gmbh Einrichtung zur Erkennung und Lokalisierung von Laserstrahlungsquellen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8442271B2 (en) 2008-11-12 2013-05-14 Eads Deutschland Gmbh Laser detection device and laser detection method
WO2016105693A1 (fr) * 2014-11-17 2016-06-30 Bae Systems Information And Electronic Systems Integration Inc. Unité remplaçable de ligne de contre-mesure de laser hybride et procédé de mise à jour à l'aide de celle-ci
US9829281B2 (en) 2014-11-17 2017-11-28 Bae Systems Information And Electronic Systems Integration Inc. Hybrid laser countermeasure line replaceable unit and method of upgrading therewith
WO2022253623A1 (fr) * 2021-05-31 2022-12-08 Valeo Schalter Und Sensoren Gmbh Dispositif de réception d'un dispositif de détection, dispositif de détection, véhicule comprenant au moins un dispositif de détection et procédé de fonctionnement d'au moins un dispositif de détection

Also Published As

Publication number Publication date
DE102007024051A1 (de) 2008-11-27
DE102007024051B4 (de) 2018-02-01

Similar Documents

Publication Publication Date Title
DE102007024051B4 (de) Vorrichtung und Verfahren zur Erkennung und Lokalisierung von Laserstrahlungsquellen
EP1405097B1 (fr) Procede et dispositif pour supprimer le rayonnement electromagnetique de fond d'une image
WO2012092911A1 (fr) Détection de gouttes de pluie sur une vitre au moyen d'une caméra et d'un éclairage
DE112012004255T5 (de) Räumlich selektive Erkennung unter Verwendung einer dynamischen Maske in einer Bildebene
EP3963358B1 (fr) Système de détection comprenant au moins un ensemble capteur, un dispositif d'évaluation, une source lumineuse et un ensemble support
DE102013210887A1 (de) Optische Sensoranordnung für ein Fahrzeug und Fahrzeug mit einer derartigen Sensoranordnung
DE102015201093A1 (de) Verfahren und Gonioradiometer zur richtungsabhängigen Messung mindestens einer lichttechnischen oder radiometrischen Kenngröße einer optischen Strahlungsquelle
DE102013212827B4 (de) Verfahren und Vorrichtung zur optischen Formerfassung und/oder Prüfen eines Gegenstandes
DE19851010B4 (de) Einrichtung zur Erkennung und Lokalisierung von Laserstrahlungsquellen
WO2010127872A1 (fr) Dispositif et procédé pour la mesure de lumière diffusée à résolution angulaire
DE102013200657A1 (de) Vorrichtung zur Erzeugung eines optischen Punktmusters
DE102013000751B4 (de) Sensorvorrichtung zum Erfassen von Feuchtigkeit auf einer Scheibe
DE102010003544A1 (de) 3D-TOF-Kamera
DE102011015478B4 (de) Vorrichtung und Verfahren zur Erfassung und Analyse von Laserstrahlung
DE102018212735A1 (de) LIDAR-Vorrichtung mit mindestens einem Streuscheibenelement
DE102017218187A1 (de) Miniaturspektrometer und Verfahren zur spektralen Analyse eines Objekts
WO2018072985A1 (fr) Procédé et dispositif de reconnaissance d'un faisceau direct de réflexion de lumière d'un objet sur un détecteur de lumière
WO2021180846A1 (fr) Détecteur de mouvement infrarouge
EP0901639B1 (fr) Procede et dispositif pour la determination de la direction dans laquelle se trouve un objet
DE102012022258A1 (de) Sensor zur Erkennung und Lokalisierung von Laserstrahlungsquellen
DE102015003392A1 (de) Optische Triangulations-Sensoranordnung und Linsenanordnung hierfür
DE202009018974U1 (de) Sensor zur winkelaufgelösten Erfassung von Flammen oder Bränden
DE102007025017A1 (de) Vorrichtung zur Bestimmung des Sonnenstandes
DE102019104661B4 (de) Wellenfrontsensor umfassend eine flächige Aperturmaske und Verfahren zur Kalibration
DE102021206514A1 (de) Messanordnung zur optischen Vermessung eines Testobjekts

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08758640

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 08758640

Country of ref document: EP

Kind code of ref document: A1