EP0694752B1 - Method to display the observation direction of an object and device for carrying out the method - Google Patents
Method to display the observation direction of an object and device for carrying out the method Download PDFInfo
- Publication number
- EP0694752B1 EP0694752B1 EP95402120A EP95402120A EP0694752B1 EP 0694752 B1 EP0694752 B1 EP 0694752B1 EP 95402120 A EP95402120 A EP 95402120A EP 95402120 A EP95402120 A EP 95402120A EP 0694752 B1 EP0694752 B1 EP 0694752B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- representation
- angle
- objective
- reference position
- site
- 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.)
- Expired - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G3/00—Aiming or laying means
- F41G3/14—Indirect aiming means
Definitions
- Objective designation provides a weapon system with information allowing to point the weapon in the direction of a target, or target.
- a target designation system includes means for detection to monitor a determined volume of space and to detect the direction of any radiation from a target, in order to provide to the weapon system the relative direction information of the objective.
- the invention relates to a method of displaying this direction and to a apparatus for carrying out the method.
- the invention relates to a display method, on a two-dimensional view of the direction observation of an object of a scene observed by a system of designation of objective which determines it, in relation to a position of reference, an azimuth angle and a site angle, process in which transfer the azimuth angle in one direction onto the display means corresponding from a representation of the reference position, characterized by the fact that the elevation angle is reported in the form of a representation of the object in the direction of the azimuth angle and at a distance, from the representation of the reference position, function of the elevation angle.
- the invention also relates to a display device for setting up work of the method of the invention, comprising means of visualization arranged to report, from a representation of a reference position, an azimuth angle of an observed object, characterized by the fact that it includes calculation means arranged to determine, depending on a value for the site angle of the object, a distance between a representation of the object and the representation of the position of reference and to order accordingly the means of visualization.
- a target designation system 1 is associated with a weapon system 11, here of anti-aircraft defense, having surface-to-air missiles and deported compared to the objective designation system 1.
- the two systems 1, 11 are connected by a data link 20.
- the positions of the two systems 1, 11 are known and their position relative is stored in a memory 13 belonging to a computer 12 connected to link 20 and located, in this example, in the weapon system 11.
- the objective designation system 1 comprises a passive detector 2, here infrared, which is in this example driven by a device for scan 3 around a vertical axis to monitor, in all azimuth directions, a volume of space surrounding the system 1 of objective designation. This volume is here limited to a range of angles of six degree site.
- the detection signal at the output of detector 2, associated with a signal representative of the corresponding angular position of the scanning device 3, are supplied to a computer 4 which determines the direction 10 of a detected objective 31, here an airplane, expressed in elevation angle and azimuth angle, relative to a reference linked to the objective designation system 1.
- the right direction 10 of objective 31 corresponds, within the limit of the range 32 of the detector 2, to a set of possible positions of objective 31.
- a digital signal 5 of data representative of the direction 10 of the objective 31 is emitted on the link 20 by the computer 4 at destination of the computer 12 of the weapon system 11.
- the computer 12 determines then by triangulation, by means of the relative position memorized in memory 13, a set of possible positions of objective 31, (segment 33, between detector 2 and point 32), in a reference linked to the weapon system 11 and calculates corresponding firing directions going through these possible positions 33 and the weapon system 11, and the weapon system 11 scans these firing directions (30, 30A) under the control of computer 12.
- the latter could also have been arranged in the lens designation system 1 and control scanning at through link 20.
- the weapon system 11 proceeds to scanning in a plane containing the direction of objective 10.
- the weapon system 11 has, as here, missiles
- it can be expected to be launched in one of the firing directions and that a missile self-director scans to acquire the image of the lens.
- the shooting can also be carried out after acquisition of goal 31 by the self-director.
- the triangle formed by the detector 2 the system weapon 11 and objective 31 is then defined and weapon system 11 can determine its distance to objective 31 in order to compare it with its range of fire and provide a corresponding indication to a system operator.
- the weapon system has no detector, it suitable as it fires ammunition in all directions firing possibilities indicated above.
- the objective designation system 1 comprises a console 6 of display associated with a computer 7 receiving, from the computer 4, the digital signal 5 of the site angle and azimuth of the objective 31.
- the computer 7 converts digital signal 5 to analog signal video symbolically representing objective 31. It can be expected that this symbolic representation depends on the values of the angles azimuth and site.
- the video signal is applied to a 7V circuit of video command to be inserted into a video signal scanning a whole screen 8 of the console 6.
- the computer 7 also supplies circuit 7V with controls for positioning the image 41 of the lens 31 on the screen 8, which are a function of the values 5 of the azimuth and elevation angles.
- the objective designation system 1 is shown at the central point of screen 8 and a crown 9 centered on this point is planned to receive the symbolic representation 41 of objective 31.
- a deflector circuit of circuit 7V is controlled from the commands of positioning of the computer 7, that is to say as a function of the angles azimuth and site, to deflect the scanning beam from the screen 8 in such a way that the symbolic representation 41 is carried, by relative to the center of screen 8, in the direction of azimuth detected and that this symbolic representation 41 is more or less close to the edge internal of crown 9 depending on whether the angle of elevation detected is more or less close to the lower value of its detection range.
- Objectives whose distance to objective designation system 1 is known approximately are also identified in polar coordinates (distance, azimuth) in the circle surrounded by the crown 9, on which are reported, around position 40 of the designation system 1 objective, the positions of several weapon systems, here four, the area covered 44-47 by each of these, as well as the only points landscape features.
- the objective designation system can determine, by successive measurements, a speed and an acceleration of the objective 31, the system operator can choose to activate the defense missile on better placed to intercept objective 31.
- the estimated trajectory 42 followed by this one and its estimated velocity vector 43 are also represented associated with its image 41.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Radar Systems Or Details Thereof (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Feedback Control In General (AREA)
- Amplifiers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
Description
La désignation d'objectif permet de fournir à un système d'arme des informations permettant de pointer l'arme dans la direction d'un objectif, ou cible. Un système de désignation d'objectif comporte des moyens de détection pour surveiller un volume d'espace déterminé et pour détecter la direction de tout rayonnement provenant d'un objectif, afin de fournir au système d'arme l'information de direction relative de l'objectif.Objective designation provides a weapon system with information allowing to point the weapon in the direction of a target, or target. A target designation system includes means for detection to monitor a determined volume of space and to detect the direction of any radiation from a target, in order to provide to the weapon system the relative direction information of the objective.
L'invention concerne un procédé de visualisation de cette direction et un appareil pour la mise en oeuvre du procédé.The invention relates to a method of displaying this direction and to a apparatus for carrying out the method.
Plus précisément, l'invention concerne un procédé de visualisation, sur un moyen de visualisation à deux dimensions, de la direction d'observation d'un objet d'une scène observée par un système de désignation d'objectif qui en détermine, par rapport à une position de référence, un angle d'azimut et un angle de site, procédé dans lequel on reporte sur le moyen de visualisation l'angle d'azimut selon une direction correspondante à partir d'une représentation de la position de référence, caractérisé par le fait qu'on reporte l'angle de site sous la forme d'une représentation de l'objet selon la direction de l'angle d'azimut et à une distance, depuis la représentation de la position de référence, fonction de l'angle de site.More specifically, the invention relates to a display method, on a two-dimensional view of the direction observation of an object of a scene observed by a system of designation of objective which determines it, in relation to a position of reference, an azimuth angle and a site angle, process in which transfer the azimuth angle in one direction onto the display means corresponding from a representation of the reference position, characterized by the fact that the elevation angle is reported in the form of a representation of the object in the direction of the azimuth angle and at a distance, from the representation of the reference position, function of the elevation angle.
L'invention concerne aussi un appareil de visualisation pour la mise en oeuvre du procédé de l'invention, comportant des moyens de visualisation agencés pour reporter, à partir d'une représentation d'une position de référence, un angle d'azimut d'un objet observé, caractérisé par le fait qu'il comporte des moyens de calcul agencés pour déterminer, en fonction d'une valeur d'angle de site de l'objet, une distance entre une représentation de l'objet et la représentation de la position de référence et pour commander en conséquence les moyens de visualisation. The invention also relates to a display device for setting up work of the method of the invention, comprising means of visualization arranged to report, from a representation of a reference position, an azimuth angle of an observed object, characterized by the fact that it includes calculation means arranged to determine, depending on a value for the site angle of the object, a distance between a representation of the object and the representation of the position of reference and to order accordingly the means of visualization.
L'invention sera mieux comprise à l'aide de la description suivante de la forme de réalisation préférée de l'ensemble d'un système de désignation d'objectif et d'un système d'arme mettant en oeuvre le procédé de l'invention, représentés schématiquement sur la figure unique du dessin annexé.The invention will be better understood using the following description of the preferred embodiment of the entire designation system objective and a weapon system implementing the method of the invention, shown schematically in the single figure of the drawing Annex.
Un système 1 de désignation d'objectif est associé à un système d'arme
11, ici de défense anti-aérienne, disposant de missiles sol-air et déporté
par rapport au système 1 de désignation d'objectif. Les deux systèmes 1,
11 sont reliés par une liaison de données 20. Les positions
géographiques des deux systèmes 1, 11 sont connues et leur position
relative est mémorisée dans une mémoire 13 appartenant à un
calculateur 12 relié à la liaison 20 et situé, dans cet exemple, dans le
système d'arme 11.A target designation system 1 is associated with a
Le système 1 de désignation d'objectif comporte un détecteur passif 2,
ici infrarouge, qui est dans cet exemple entraíné par un dispositif de
balayage 3 autour d'un axe vertical pour surveiller, dans toutes les
directions d'azimut, un volume d'espace entourant le système 1 de
désignation d'objectif. Ce volume est ici limité à une plage d'angles de
site de six degrés. Le signal de détection en sortie du détecteur 2,
associé à un signal représentatif de la position angulaire correspondante
du dispositif de balayage 3, sont fournis à un calculateur 4 qui en
détermine la direction 10 d'un objectif détecté 31, ici un avion, exprimée
en angle de site et angle d'azimut, par rapport à un repère lié au
système 1 de désignation d'objectif.The objective designation system 1 comprises a passive detector 2,
here infrared, which is in this example driven by a device for
En l'absence d'estimation de distance entre le système 1 de désignation
d'objectif et l'objectif 31, la droite 10 de direction de l'objectif 31
correspond, dans la limite de la portée 32 du détecteur 2, à un ensemble
de positions possibles de l'objectif 31.In the absence of an estimate of the distance between the designation system 1
of objective and objective 31, the
Un signal numérique 5 de données représentatives de la direction 10 de
l'objectif 31 est émis sur la liaison 20 par le calculateur 4 à destination
du calculateur 12 du système d'arme 11. Le calculateur 12 en détermine
alors par triangulation, au moyen de la position relative mémorisée dans
la mémoire 13, un ensemble de positions possibles de l'objectif 31,
(segment 33, entre le détecteur 2 et le point 32), dans un repère lié au
système d'arme 11 et en calcule des directions de tir correspondantes
passant par ces positions possibles 33 et le système d'arme 11, et le
système d'arme 11 balaye ces directions de tir (30, 30A) sous la
commande du calculateur 12. Ce dernier aurait aussi pu être disposé
dans le système 1 de désignation d'objectif et commander le balayage à
travers la liaison 20.A digital signal 5 of data representative of the
Pour simplifier le balayage ci-dessus, le système d'arme 11 procède au
balayage dans un plan contenant la direction d'objectif 10.To simplify the above scanning, the
Dans cet exemple, afin de limiter l'ampleur du balayage du système
d'arme 11, on restreint l'ensemble des positions possibles 33 de
l'objectif 31 en estimant la distance D, du détecteur 2 à l'objectif 31,
d'après l'amplitude mesurée du signal de détection du détecteur 2 et de
sa variation au cours du temps. Le spectre de ce signal ainsi que les
conditions de propagation atmosphérique permettent aussi d'estimer la
distance de l'objectif 31 au système 1 de désignation d'objectif. De
même, la détermination, au moyen du détecteur 2, de l'angle de
présentation de l'avion 31 et de son type permet, au moyen de tables de
correspondance, d'estimer l'énergie rayonnée vers le détecteur 2 et, par
comparaison avec celle reçue, de déterminer approximativement la
distance D recherchée. Cette estimation de distance D est ici effectuée
par le calculateur 4 et transmise au calculateur 12. Ce dernier aurait pu
effectuer cette estimation lui-même, à partir du signal du détecteur 2,
émis sous une forme appropriée sur la liaison 20.In this example, to limit the amount of
Dans le cas où le système d'arme 11 dispose, comme ici, de missiles, il
peut être prévu qu'ils soient lancés selon l'une des directions de tir et
qu'un auto-directeur de missile effectue le balayage pour acquérir
l'image de l'objectif. Le tir peut aussi être effectué après acquisition de
l'objectif 31 par l'auto-directeur.In the case where the
Dans le cas où la distance D est estimée ou lorsque l'auto-directeur
"accroche" l'objectif 31, le triangle formé par le détecteur 2, le système
d'arme 11 et l'objectif 31 est alors défini et le système d'arme 11 peut
déterminer sa distance à l'objectif 31 afin de la comparer à sa portée de
tir et fournir une indication correspondante à un exploitant du système.In case the distance D is estimated or when the self-steering
"hooks" the
Dans le cas où le système d'arme ne comporte aucun détecteur, il convient alors qu'il tire des munitions dans toutes les directions possibles de tir indiquées ci-dessus.If the weapon system has no detector, it suitable as it fires ammunition in all directions firing possibilities indicated above.
Pour faciliter l'exploitation de l'ensemble des systèmes 1, 11, et en
particulier s'il est prévu plusieurs systèmes d'arme entourant à distance
le système 1 de désignation d'objectif, ce dernier comporte une console
6 de visualisation associée à un calculateur 7 recevant, du calculateur 4,
le signal numérique 5 d'angle de site et d'azimut de l'objectif 31. Le
calculateur 7 convertit le signal numérique 5 en un signal analogique
vidéo représentant symboliquement l'objectif 31. Il peut être prévu que
cette représentation symbolique dépende des valeurs des angles
d'azimut et de site. Le signal vidéo est appliqué à un circuit 7V de
commande vidéo pour être inséré dans un signal vidéo balayant tout un
écran 8 de la console 6. Le calculateur 7 fournit aussi, au circuit 7V, des
commandes de positionnement de l'image 41 de l'objectif 31 sur l'écran
8, qui sont fonction des valeurs 5 des angles d'azimut et de site.To facilitate the operation of all
Dans cet exemple, le système 1 de désignation d'objectif est représenté
au point central de l'écran 8 et une couronne 9 centrée sur ce point est
prévue pour recevoir la représentation symbolique 41 de l'objectif 31. Un
circuit déflecteur du circuit 7V est commandé à partir des commandes de
positionnement du calculateur 7, c'est-à-dire en fonction des angles
d'azimut et de site, afin de dévier le faisceau de balayage de l'écran 8
de telle manière que la représentation symbolique 41 soit portée, par
rapport au centre de l'écran 8, dans la direction d'azimut détectée et que
cette représentation symbolique 41 soit plus ou moins proche du bord
interne de la couronne 9 selon que l'angle de site détecté est plus ou
moins proche de la valeur inférieure de sa plage de détection.In this example, the objective designation system 1 is shown
at the central point of
Les objectifs dont la distance au système 1 de désignation d'objectif est
connue approximativement sont aussi repérés en coordonnées polaires
(distance, azimut) dans le cercle entouré par la couronne 9, sur lequel
sont reportées, autour de la position 40 du système 1 de désignation
d'objectif, les positions de plusieurs systèmes d'arme, ici quatre, la zone
couverte 44-47 par chacun de ceux-ci, ainsi que les seuls points
caractéristiques du paysage.Objectives whose distance to objective designation system 1 is
known approximately are also identified in polar coordinates
(distance, azimuth) in the circle surrounded by the crown 9, on which
are reported, around
Comme le système de désignation d'objectif peut déterminer, par des
mesures successives, une vitesse et une accélération de l'objectif 31,
l'exploitant du système peut choisir d'activer le missile de défense le
mieux placé pour intercepter l'objectif 31. La trajectoire estimée 42
suivie par celui-ci et son vecteur vitesse estimé 43 sont aussi
représentés associés à son image 41.As the objective designation system can determine, by
successive measurements, a speed and an acceleration of the
Claims (6)
- Method of displaying, on a two-dimensional display means (6), the direction of observation of an object (31) of a scene observed by a system of pinpointing an objective (1) which determines, in relation to a reference position, an azimuth angle and an angle of site, a method in which one reports on the display means (6) the azimuth angle according to a corresponding direction starting from a representation of the reference position, characterised by the fact that the site angle is reported in the form of a representation of the object (31) according to the azimuth angle and at a distance, from the representation of the reference position, as a function of the angle of site.
- Method according to claim 1, wherein, having determined the distance between the reference position and the object (31), said distance is reported, according to the azimuth direction, in a display area limited by a band (9) reserved for the representation of the angles of site.
- Method according to one of claims 1 and 2, wherein the speed of the object (31) is estimated and a corresponding speed vector is associated with its representation.
- Method according to one of claims 1 - 3, wherein the trajectory of the object (31) is determined and displayed.
- Method according to one of claims 1 - 4, wherein one displays the position of the objective pinpointing system (1), the position of at least one weapon system (11) and its area of action and, possibly, characteristic landmarks.
- Display apparatus for the implementation of the method of claim 1, comprising display means (6,8) arranged to report, starting from a representation of a reference position, an azimuth angle of the observed object (31), characterized by the fact that it comprises calculation means (7) arranged to determine, as a function of an angle of site value of the object (31), a distance between a representation (41) of the object (31) and the representation of the reference position, and consequently to control the display means (6, 8).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9312560 | 1993-10-21 | ||
FR9312560A FR2711781B1 (en) | 1993-10-21 | 1993-10-21 | Method for operating a remote weapon system with respect to an objective designation system and set of these systems for implementing the method. |
EP94402147A EP0650026B1 (en) | 1993-10-21 | 1994-09-27 | Method for operating a weapon system displaced with respect to a target designation system and combination of these systems for carrying out the method |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94402147.6 Division | 1994-09-27 | ||
EP94402147A Division EP0650026B1 (en) | 1993-10-21 | 1994-09-27 | Method for operating a weapon system displaced with respect to a target designation system and combination of these systems for carrying out the method |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0694752A2 EP0694752A2 (en) | 1996-01-31 |
EP0694752A3 EP0694752A3 (en) | 1996-02-14 |
EP0694752B1 true EP0694752B1 (en) | 1999-07-07 |
Family
ID=9452079
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95402120A Expired - Lifetime EP0694752B1 (en) | 1993-10-21 | 1994-09-27 | Method to display the observation direction of an object and device for carrying out the method |
EP94402147A Expired - Lifetime EP0650026B1 (en) | 1993-10-21 | 1994-09-27 | Method for operating a weapon system displaced with respect to a target designation system and combination of these systems for carrying out the method |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94402147A Expired - Lifetime EP0650026B1 (en) | 1993-10-21 | 1994-09-27 | Method for operating a weapon system displaced with respect to a target designation system and combination of these systems for carrying out the method |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP0694752B1 (en) |
AT (2) | ATE184394T1 (en) |
DE (2) | DE69420508D1 (en) |
FR (1) | FR2711781B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19716227C2 (en) * | 1997-04-18 | 2000-10-05 | Rheinmetall W & M Gmbh | Weapon system with an ammunition unit containing a microcontroller |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1336051A (en) * | 1947-05-29 | 1963-08-30 | Monsieur Le Ministre De L Air | Electronic periscope |
IT1070381B (en) * | 1976-06-01 | 1985-03-29 | Galileo Spa Off | POINTING AND CALCULATION CONVENTION FOR ANTI-AIRCRAFT SHOOTING |
SE420766B (en) * | 1978-01-18 | 1981-10-26 | Bofors Ab | ELDLEDNINGSANORDNING |
FR2542863B1 (en) * | 1983-03-17 | 1987-02-27 | Sfim | HELIPORTIC SYSTEM FOR LOCATING AND DETERMINING PARAMETERS OF MOVEMENT OF A TARGET, AND METHOD FOR IMPLEMENTING SAME |
CH665476A5 (en) * | 1985-01-09 | 1988-05-13 | Oerlikon Buehrle Ag | Optical target sight e.g. for anti-aircraft gun - has coupled viewfinders with cross-wire and target direction display respectively |
ES2051938T3 (en) * | 1988-09-23 | 1994-07-01 | Contraves Ag | PROCEDURE AND AIMING DEVICE FOR THE APPROXIMATE ALIGNMENT OF THE FIRE DIRECTION AND WEAPONS FACILITIES. |
FR2670037A1 (en) * | 1990-12-04 | 1992-06-05 | Thomson Csf | Objective designation device |
-
1993
- 1993-10-21 FR FR9312560A patent/FR2711781B1/en not_active Expired - Fee Related
-
1994
- 1994-09-27 EP EP95402120A patent/EP0694752B1/en not_active Expired - Lifetime
- 1994-09-27 EP EP94402147A patent/EP0650026B1/en not_active Expired - Lifetime
- 1994-09-27 AT AT94402147T patent/ATE184394T1/en not_active IP Right Cessation
- 1994-09-27 DE DE69420508T patent/DE69420508D1/en not_active Expired - Lifetime
- 1994-09-27 DE DE69510612T patent/DE69510612T2/en not_active Expired - Fee Related
-
1995
- 1995-09-28 AT AT95402120T patent/ATE182003T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0694752A2 (en) | 1996-01-31 |
DE69510612D1 (en) | 1999-08-12 |
FR2711781B1 (en) | 1996-01-12 |
EP0694752A3 (en) | 1996-02-14 |
DE69510612T2 (en) | 2000-05-04 |
DE69420508D1 (en) | 1999-10-14 |
EP0650026A1 (en) | 1995-04-26 |
FR2711781A1 (en) | 1995-05-05 |
ATE184394T1 (en) | 1999-09-15 |
ATE182003T1 (en) | 1999-07-15 |
EP0650026B1 (en) | 1999-09-08 |
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