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WO2003060555A1 - Procede et dispositif de detection d'objets optiques et optoelectroniques - Google Patents

Procede et dispositif de detection d'objets optiques et optoelectroniques Download PDF

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Publication number
WO2003060555A1
WO2003060555A1 PCT/RU2002/000452 RU0200452W WO03060555A1 WO 2003060555 A1 WO2003060555 A1 WO 2003060555A1 RU 0200452 W RU0200452 W RU 0200452W WO 03060555 A1 WO03060555 A1 WO 03060555A1
Authority
WO
WIPO (PCT)
Prior art keywords
emission
sounding
optical
reflected
laser
Prior art date
Application number
PCT/RU2002/000452
Other languages
English (en)
Inventor
Nikolai Nikolaevich Slipchenko
Aleksandr Sergeevich Kazakov
Original Assignee
Nikolai Nikolaevich Slipchenko
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 Nikolai Nikolaevich Slipchenko filed Critical Nikolai Nikolaevich Slipchenko
Priority to EP02806415A priority Critical patent/EP1459097A1/fr
Publication of WO2003060555A1 publication Critical patent/WO2003060555A1/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
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/04—Systems determining the presence of a target
    • 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
    • G01S7/4802—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section

Definitions

  • the invention relates to optical detection ranging, to the systems of optical search, systems for detection and recognition of type of the detected target using TV methods of signal processing.
  • the closest prior art is the Method for detection of optical and optoelectronic objects based on the sounding of a space volume controlled by a scanning pulse laser emission with the pulse repetition frequency of laser emission, equal to f c /n, and on detection of optical picture signals in the spectral range of the reflected laser emission from the distance given and the section of space close to it, determined by the observation depth, on the transduction of the received signals into video signal, on the threshold selection of the set of the received video signals to eliminate the interfering background image; upon that the emitting sequence of the laser pulses is coded by the amplitude manipulation with the defined frequency, then the sequence is separated from a number of the received video signals and upon presence of the video signals, correlated with the code of the amplitude manipulation of the emitted sequence of pulses, the alarm signal is on and the fatigue flickering of brightness of the screen with the frequency of the amplitude manipulation is fixed by the help of an operator (Patent RU JV° 2133485).
  • the narrow diagram of the reflected signal which is characteristic of the cat's eye systems, for instance, the optical systems with reflecting elements close to their focus (a TV- camera with objective, a sight with grid etc.).
  • the technical result of the invention developed is the increased probability of detection of optical and optoelectronic objects (for instance, TV-cameras), which are at the nearest zone.
  • optical and optoelectronic objects for instance, TV-cameras
  • the closest analogue of the applied Device is the Device for detection of optoelectronic objects, comprising the frequency-pulse laser, the image converter tube with objective, the photoreceiving unit, the videocontrol unit, the videosignal processing unit, the synchronizer, two high voltage pulse sources, the block of lock pulses, the key-board, the frame frequency divider, the modulator, the automatic grain control (Patent RU M> 2129287).
  • FIGURES 1 and 2 show the indicated Method can be realized by the Device.
  • the technical result is the increase of probability of the detection of optical and optoelectronic objects at the nearest zone, and it is reached by the installed semi-transparent mirror (2), the absorber (3) and conditions of installation of the above-mentioned elements, by alignment of the optical axes of lasers and TV-camera in the sounding space volume, by utilization of laser (8) emission, which does not coincide with the direction of the optical axe of TV-camera (4).
  • the Device to realize the Method for detection of optoelectronic objects consists of the plane semi-transparent mirror (2), the emission absorber (3), the receiver as the TV-camera with objective (4), the monitor (5), the frame frequency divider (6), the transmitter [the laser or any other source of light with objective] (8), the modulator (7).
  • the Device operates in the following way.
  • the videosignal from TV-camera (4) gets to the monitor (5).
  • the frame frequency gets from the TV-camera (4) to the frame frequency divider (6), which is linked with the modulator (7).
  • the modulation signal from the modulator (7) comes at the laser (8).
  • the laser emission modulated by the frequency f k /n, where f is the frame frequency of the TV-camera (4), n is a number equal to 10-12, and it should be in the range of 3-5 Hz (the indicated value of the frequency is good for human viewing), gets at the object (1) reflecting from it, while the maximum of the reflected emission (10) coincides with the direction of the emission (9) reducing.
  • optical axes of the laser (8) and the TV-camera (4) are aligned at the right angle, and the semi-transparent mirror is set at crossing of their optical axes at the angle of 45°.
  • the indicated alignment of the laser (8) and the TV-camera (4) provides full coincidence of their optical axes at the sounding space volume.
  • the absorber (3) of the emission, which goes through the mirror (2), is set at a distance from the semi-transparent mirror (2).
  • the absorber an absolutely black body or a polished glass plate made from glass of HC grade can be used, set parallel to the semi- transparent mirror (3) in such a way, so that to cover all the aperture of the laser (5) emission and not to vignette the objective of the TV-camera.
  • the reflected emission is shown at the monitor screen (5) as a characteristic bright and flickering point, due to it operator detects an optoelectronic object, which has got into the field of view of the device.
  • the emission reflected from the detected optoelectronic device has a very narrow diagram and coincides by its direction with the axis of the reducing emission; the reached coincidence of the optical axes of the transmitter and the receiver [installation of the semi-transparent mirror (2) increases the level of the signal being received (detected) up to its maximum actually], so that it increases possibility of detection or potential of the Device; it is especially important for the nearest zone, when due to the mutual parallax of objectives of the transmitter and the receiver only a part of the reflected emission can get into the objective of the receiver, that considerably reduces probability of detection of optoelectronic and optical devices.
  • a glass plane-parallel plate can be installed in the same position; an opaque mirror coating, covering the aperture of the laser emission, is put on at the centre of the butt-end of the plate, which faces with the side of the sounding space volume.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

Selon l'invention, pour obtenir le résultat technique indiqué, on met en application un procédé de détection d'éléments optiques et optoélectroniques sur la base d'un sondage du volume d'espace contrôlé par émission pulsée ou continue avec l'ensemble spectral, selon la plage de fonctionnement des dispositifs en cours de détection, ainsi que sur la base du codage de l'émission de sondage, notamment par manipulation d'amplitude, de la réception de l'émission réfléchie juste dans le même spectre, de la transduction des signaux réfléchis en image du volume d'espace observé visible pour l'opérateur, et de la sélection par l'opérateur des images des signaux réfléchis à partir des dispositifs optiques et optoélectroniques par effet de fatigue de la fréquence d'oscillation, laquelle est en conformité avec la fréquence de la manipulation d'amplitude du signal de sondage, la réception du signal réfléchi étant réalisée dans un sens coïncidant strictement avec le centre du diagramme de l'émission de sondage de l'émetteur.
PCT/RU2002/000452 2001-12-27 2002-10-14 Procede et dispositif de detection d'objets optiques et optoelectroniques WO2003060555A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02806415A EP1459097A1 (fr) 2001-12-27 2002-10-14 Procede et dispositif de detection d'objets optiques et optoelectroniques

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2001135383 2001-12-27
RU2001135383/09A RU2001135383A (ru) 2001-12-27 2001-12-27 Способ обнаружения оптических и оптоэлектронных объектов и устройство обнаружения оптических и оптоэлектронных объектов

Publications (1)

Publication Number Publication Date
WO2003060555A1 true WO2003060555A1 (fr) 2003-07-24

Family

ID=20254954

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2002/000452 WO2003060555A1 (fr) 2001-12-27 2002-10-14 Procede et dispositif de detection d'objets optiques et optoelectroniques

Country Status (3)

Country Link
EP (1) EP1459097A1 (fr)
RU (1) RU2001135383A (fr)
WO (1) WO2003060555A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2345390C2 (ru) * 2006-10-30 2009-01-27 Производственное республиканское унитарное предприятие "Минский механический завод им. С.И. Вавилова" Способ обнаружения оптоэлектронных объектов и устройство для его осуществления
RU2842272C1 (ru) * 2024-09-09 2025-06-24 Федеральное государственное казенное военное образовательное учреждение высшего образования "Военный учебно-научный центр Военно-воздушных сил "Военно-воздушная академия имени профессора Н.Е. Жуковского и Ю.А. Гагарина" (г. Воронеж) Министерства обороны Российской Федерации Способ скрытого поиска оптико-электронных средств

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998021617A1 (fr) * 1996-11-10 1998-05-22 Nikolai Nikolaevich Slipchenko Systeme laser permettant de detecter des objets optoelectroniques
US5793034A (en) * 1995-09-18 1998-08-11 Daedalus Enterprises, Inc. Target detection system utilizing multiple optical criteria
WO1999040458A2 (fr) * 1998-02-05 1999-08-12 Nikolai Nikolaevich Slipchenko Dispositif de detection d'objets optoelectroniques
WO2000002062A2 (fr) * 1998-07-03 2000-01-13 Nikolai Nikolaevich Slipchenko Procede de detection et systemes optiques et optoelectroniques

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5793034A (en) * 1995-09-18 1998-08-11 Daedalus Enterprises, Inc. Target detection system utilizing multiple optical criteria
WO1998021617A1 (fr) * 1996-11-10 1998-05-22 Nikolai Nikolaevich Slipchenko Systeme laser permettant de detecter des objets optoelectroniques
WO1999040458A2 (fr) * 1998-02-05 1999-08-12 Nikolai Nikolaevich Slipchenko Dispositif de detection d'objets optoelectroniques
WO2000002062A2 (fr) * 1998-07-03 2000-01-13 Nikolai Nikolaevich Slipchenko Procede de detection et systemes optiques et optoelectroniques

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2345390C2 (ru) * 2006-10-30 2009-01-27 Производственное республиканское унитарное предприятие "Минский механический завод им. С.И. Вавилова" Способ обнаружения оптоэлектронных объектов и устройство для его осуществления
RU2842272C1 (ru) * 2024-09-09 2025-06-24 Федеральное государственное казенное военное образовательное учреждение высшего образования "Военный учебно-научный центр Военно-воздушных сил "Военно-воздушная академия имени профессора Н.Е. Жуковского и Ю.А. Гагарина" (г. Воронеж) Министерства обороны Российской Федерации Способ скрытого поиска оптико-электронных средств

Also Published As

Publication number Publication date
EP1459097A1 (fr) 2004-09-22
RU2001135383A (ru) 2003-07-27

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