EP0266250B1 - Apparatus for aiding the acquisition of a target by an operator in a weapon system - Google Patents

Apparatus for aiding the acquisition of a target by an operator in a weapon system Download PDF

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Publication number
EP0266250B1
EP0266250B1 EP87402254A EP87402254A EP0266250B1 EP 0266250 B1 EP0266250 B1 EP 0266250B1 EP 87402254 A EP87402254 A EP 87402254A EP 87402254 A EP87402254 A EP 87402254A EP 0266250 B1 EP0266250 B1 EP 0266250B1
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EP
European Patent Office
Prior art keywords
target
operator
information
localization
synthesis
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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
Application number
EP87402254A
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German (de)
French (fr)
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EP0266250A1 (en
Inventor
Jacques Chambre
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.)
Thales SA
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Thomson CSF SA
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Filing date
Publication date
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Priority to AT87402254T priority Critical patent/ATE66295T1/en
Publication of EP0266250A1 publication Critical patent/EP0266250A1/en
Application granted granted Critical
Publication of EP0266250B1 publication Critical patent/EP0266250B1/en
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
    • F41G3/00—Aiming or laying means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G5/00—Elevating or traversing control systems for guns

Definitions

  • the present invention relates to a device for assisting in the acquisition of a target by an operator in a weapon system.
  • a weapon system is composed in a known manner of a target detection and location unit, such as a radar, and of firing units, capable of firing in the direction of targets thus located.
  • the present invention relates more particularly to a short-range weapon system in which the firing operations are carried out manually by an operator, which supposes that prior to any firing operation, the operator acquires the target in its sight, and either therefore brought to look in the direction of this one. For this, one might think a priori that the operator's own means of perception are sufficient; in reality such a method would be ineffective, in particular in the presence of fast targets flying at low altitude and revealing themselves late (for example due to the interposition of natural obstacles such as trees or hills).
  • a more effective solution consists in transmitting information from the detection and localization system, which also acquires the target, towards the operator, in order to indicate to the latter, in order to anticipate his reaction, in particular the nature of the target, its source, its approach speed; but the problem then lies in the choice of the communication interface between the detection and localization system and the operator.
  • this is done in the form of an alert, usually given by voice.
  • This method is however very restrictive for the operator who, because of the speed of certain targets and the implementation times of this method, often has very little time to react.
  • US Pat. No. 2,069,208 describes an arrangement for reinforcing the biaural effect in a system which makes it possible to appreciate the direction of a target by listening to the real noises which it emits.
  • the subject of the present invention is another alert method which is both less restrictive for the operator from a physiological point of view, and more effective from an operational point of view.
  • a device for assisting in the acquisition of target by an operator, in a weapon system comprising a target detection and location system delivering target location information, as defined in the revendications.
  • the device 1 for assisting in the acquisition of a target by an operator in a weapon system provides an interface between the detection and localization system 2 of the weapon system and n operators fitted with stereophonic headsets such as 3 n (only one of them having been represented for clarity).
  • This device comprises, associated with each of the n helmets 3 n , a processor 4 n , called the helmet processor, capable of carrying out the synthesis of stereophonic signals, under the control of signals received from a computer 5 with which it communicates.
  • This computer 5 itself receives from the detection and localization system 2, for each of the targets detected by this system (assumed to be multi-target) the nature (N), the direction (D1), the distance (d) and the approach speed (V) thereof.
  • the computer 5 From this information, called target location information, the computer 5 prepares information for controlling the synthesis of stereophonic sound signals which, transmitted to the headphones of the headsets provided with the n operators, give them the subjective feeling of a direction of attack corresponding to the real direction in which the target assigned to them is situated, in relation to them.
  • the direction information is therefore converted by the computer 5 into phase information ( ⁇ ), the distance information into intensity information (I), and the speed information (V) into information of frequency (f).
  • the target direction information (D1) Prior to its conversion into phase information, the target direction information (D1) is combined with the direction information (D2) in which the operator is looking, in order to obtain the stereophonic direction of the target relative to the operator, taking into account the tilt of his head.
  • This direction information (D2) in which the operator looks can be delivered by a gyrometric platform, but also, taking into account the very relative precision which is required, by a magnetic system adjusted to the local declination; it is then transmitted from the headset processor 4 to the computer 5.
  • the information for controlling the synthesis of stereophonic signals is stored in n registers 6 n , for multiplexed transmission to the n processors 4 n .
  • each headset processor contains, recorded in ROM 7, the binary signals corresponding to the different natures of targets.
  • the suitable memory selected using the target nature information (N), is read at a rate corresponding to the frequency developed by the computer 5, and the signal obtained, after digital / analog conversion in a converter 8 is applied to the input of two stereophonic amplifiers 9 and 10 which provide the gains and phase shifts corresponding to the intensity and phase information transmitted by the computer 5.
  • the operator thus hears a sound signal which gives him the subjective impression of the direction and the approach of the target and informs him about his nature.
  • the information for controlling the synthesis of stereophonic signals is updated by the computer 5 as a function of the movements of the head of the operator and of the extrapolated movement of the target.
  • the subjective direction of the noise thus always corresponds to the effective direction of the latter.
  • the operator is thus able to orient himself very quickly in the direction of the target assigned to him and to acquire it.

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  • 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)
  • Geophysics And Detection Of Objects (AREA)
  • Stereophonic System (AREA)

Abstract

This aid device for target acquisition by an operator in a weapon system having a target detection and location system supplying target location information comprises essentially means (4n) for synthesising stereophonic sound signals intended for the operator and means (5) for converting target location information into control information for the synthesis of stereophonic signals, in order to give the operator the subjective feeling of an attack direction corresponding to the actual direction of the target in relation to this operator. <??>The invention is used in short-range weapon systems. <IMAGE>

Description

La présente invention concerne un dispositif d'aide à l'acquisition de cible par un opérateur dans un système d'armes.The present invention relates to a device for assisting in the acquisition of a target by an operator in a weapon system.

Un système d'armes se compose de manière connue d'une unité de détection et de localisation de cibles, telle qu'un radar, et d'unités de tir, aptes à tirer en direction de cibles ainsi localisées.A weapon system is composed in a known manner of a target detection and location unit, such as a radar, and of firing units, capable of firing in the direction of targets thus located.

La présente invention concerne plus particulièrement un système d'armes de courte portée dans lequel les opérations de tir sont effectuées manuellement par un opérateur, ce qui suppose que préalablement à toute opération de tir, l'opérateur acquière la cible dans son viseur, et soit donc amené à regarder dans la direction de celle-ci. Pour cela on pourrait penser a priori que les propres moyens de perception de l'opérateur suffisent ; en réalité une telle méthode serait inefficace, en particulier en présence de cibles rapides volant à basse altitude et se démasquant tardivement (par exemple du fait de l'interposition d'obstacles naturels tels que arbres ou collines).The present invention relates more particularly to a short-range weapon system in which the firing operations are carried out manually by an operator, which supposes that prior to any firing operation, the operator acquires the target in its sight, and either therefore brought to look in the direction of this one. For this, one might think a priori that the operator's own means of perception are sufficient; in reality such a method would be ineffective, in particular in the presence of fast targets flying at low altitude and revealing themselves late (for example due to the interposition of natural obstacles such as trees or hills).

Une solution plus efficace consiste en une transmission d'informations du système de détection et de localistion, qui acquiert par ailleurs la cible, vers l'opérateur, afin d'indiquer à celui-ci, en vue d'anticiper sa réaction, notamment la nature de la cible, sa provenance, sa vitesse d'approche ; mais le problème réside alors dans le choix de l'interface de communication entre le système de détection et de localisation et l'opérateur. Actuellement, ceci se fait sous la forme d'une alerte, généralement donnée par phonie. Cette méthode se révèle cependant très contraignante pour l'opérateur qui, du fait de la vitesse de certaines cibles et des délais de mise en oeuvre de cette méthode, ne dispose souvent que de fort peu de temps pour réagir.A more effective solution consists in transmitting information from the detection and localization system, which also acquires the target, towards the operator, in order to indicate to the latter, in order to anticipate his reaction, in particular the nature of the target, its source, its approach speed; but the problem then lies in the choice of the communication interface between the detection and localization system and the operator. Currently, this is done in the form of an alert, usually given by voice. This method is however very restrictive for the operator who, because of the speed of certain targets and the implementation times of this method, often has very little time to react.

Dans cet ordre d'idée, il est connu par le brevet français FR-A-2 078 693, pour une cible déjà acquise par un opérateur, de transmettre à ce dernier des ordres vocaux de correction de tir élaborés à partir des informations fournies sur la cible par un système de détection et de localisation. Une telle installation souffre par conséquent des inconvénients indiqués ci-dessus.In this connection, it is known from French patent FR-A-2 078 693, for a target already acquired by an operator, to transmit to the latter vocal orders for shooting correction developed from the information provided on the target by a detection and localization system. Such an installation therefore suffers from the drawbacks indicated above.

Par ailleurs, le brevet US 2 069 208 décrit un arrangement pour renforcer l'effet biaural dans un système qui permet d'apprécier la direction d'une cible par l'écoute des bruits réels qu'elle émet.Furthermore, US Pat. No. 2,069,208 describes an arrangement for reinforcing the biaural effect in a system which makes it possible to appreciate the direction of a target by listening to the real noises which it emits.

La présente invention a pour objet une autre méthode d'alerte qui soit à la fois moins contraignante pour l'opérateur d'un point de vue physiologique, et plus efficace sur le plan opérationnel.The subject of the present invention is another alert method which is both less restrictive for the operator from a physiological point of view, and more effective from an operational point of view.

Suivant l'invention, on prévoit un dispositif d'aide à l'acquisition de cible par un opérateur, dans un système d'armes comportant un système de détection et de localisation de cibles délivrant des informations de localisation de cibles, tel que défini dans les revendications.According to the invention, there is provided a device for assisting in the acquisition of target by an operator, in a weapon system comprising a target detection and location system delivering target location information, as defined in the revendications.

D'autres objets et caractéristiques de la présente invention apparaîtront plus clairement à la lecture de la description suivante d'un exemple de réalisation, faite en relation avec les dessins ci-annexés dans lesquels :

  • la figure 1 est un schéma de principe d'un dispositif d'aide à l'acquisition de cible suivant l'invention ;
  • la figure 2 est un schéma synoptique d'un synthétiseur de signaux stéréophoniques utilisé dans un dispositif d'aide à l'acquisition de cible suivant l'invention.
Other objects and characteristics of the present invention will appear more clearly on reading the following description of an exemplary embodiment, made in relation to the appended drawings in which:
  • Figure 1 is a block diagram of a device for assisting in target acquisition according to the invention;
  • Figure 2 is a block diagram of a stereophonic signal synthesizer used in a device for assisting in target acquisition according to the invention.

Le dispositif 1 d'aide à l'acquisition de cible par un opérateur dans un système d'armes réalise une interface entre le système de détection et de localisation 2 du système d'armes et n opérateurs munis de casques stéréophoniques tels que 3n (un seul d'entre eux ayant été représenté pour plus de clarté). Ce dispositif comporte, associé à chacun des n casques 3n, un processeur 4n, appelé processeur de casque, apte à réaliser la synthèse de signaux stéréophoniques, sous la commande de signaux reçus d'un calculateur 5 avec lequel il communique.The device 1 for assisting in the acquisition of a target by an operator in a weapon system provides an interface between the detection and localization system 2 of the weapon system and n operators fitted with stereophonic headsets such as 3 n ( only one of them having been represented for clarity). This device comprises, associated with each of the n helmets 3 n , a processor 4 n , called the helmet processor, capable of carrying out the synthesis of stereophonic signals, under the control of signals received from a computer 5 with which it communicates.

Ce calculateur 5 reçoit lui-même du système de détection et de localisation 2, pour chacune des cibles détectées par ce système (supposé multicibles) la nature (N), la direction (D₁), la distance (d) et la vitesse d'approche (V) de celle-ci.This computer 5 itself receives from the detection and localization system 2, for each of the targets detected by this system (assumed to be multi-target) the nature (N), the direction (D₁), the distance (d) and the approach speed (V) thereof.

A partir de ces informations, dites informations de localisation de cible, le calculateur 5 élabore des informations de commande de synthèse de signaux sonores stéréophoniques qui, retransmis aux écouteurs des casques dont sont pourvus les n opérateurs, leur donnent la sensation subjective d'une direction d'attaque correspondant à la direction réelle dans laquelle se situe celle des cibles qui leur est attribuée, par rapport à eux.From this information, called target location information, the computer 5 prepares information for controlling the synthesis of stereophonic sound signals which, transmitted to the headphones of the headsets provided with the n operators, give them the subjective feeling of a direction of attack corresponding to the real direction in which the target assigned to them is situated, in relation to them.

L'information de direction est pour cela convertie par le calculateur 5 en une information de phase (φ), l'information de distance en une information d'intensité (I), et l'information de vitesse(V) en une information de fréquence (f).The direction information is therefore converted by the computer 5 into phase information (φ), the distance information into intensity information (I), and the speed information (V) into information of frequency (f).

Préalablement à sa conversion en information de phase, l'information (D₁) de direction de cible est combinée avec l'information (D₂) de direction dans laquelle regarde l'opérateur, afin d'obtenir la direction stéréophonique de la cible par rapport à l'opérateur, compte tenu de l'inclinaison de sa tête.Prior to its conversion into phase information, the target direction information (D₁) is combined with the direction information (D₂) in which the operator is looking, in order to obtain the stereophonic direction of the target relative to the operator, taking into account the tilt of his head.

Cette information de direction (D₂) dans laquelle regarde l'opérateur peut être délivrée par une plateforme gyrométrique, mais aussi, compte tenu de la précision toute relative qui est demandée, par un système magnétique réglé sur la déclinaison locale ; elle est ensuite transmise du processeur de casque 4 vers le calculateur 5. Une fois élaborées par le calculateur 5, les informations de commande de synthèse de signaux stéréophoniques sont stockées dans n registres 6 n, pour transmission multiplexée vers les n processeurs 4 n.This direction information (D₂) in which the operator looks can be delivered by a gyrometric platform, but also, taking into account the very relative precision which is required, by a magnetic system adjusted to the local declination; it is then transmitted from the headset processor 4 to the computer 5. Once produced by the computer 5, the information for controlling the synthesis of stereophonic signals is stored in n registers 6 n , for multiplexed transmission to the n processors 4 n .

Comme représenté sur la figure 2, chaque processeur de casque contient, enregistrés en mémoire morte 7, les signaux binaires correspondant aux différentes natures de cibles.As shown in FIG. 2, each headset processor contains, recorded in ROM 7, the binary signals corresponding to the different natures of targets.

La mémoire convenable, sélectionnée grâce à l'information (N) de nature de cible, est lue à un rythme correspondant à la fréquence élaborée par le calculateur 5, et le signal obtenu, après conversion numérique/analogique dans un convertisseur 8 est appliqué à l'entrée de deux amplificateurs stéréophoniques 9 et 10 qui fournissent les gains et les déphasages correspondant aux informations d'intensité et de phase transmises par le calculateur 5. L'opérateur entend ainsi un signal sonore qui lui donne l'impression subjective de la direction et du rapprochement de la cible et le renseigne sur sa nature.The suitable memory, selected using the target nature information (N), is read at a rate corresponding to the frequency developed by the computer 5, and the signal obtained, after digital / analog conversion in a converter 8 is applied to the input of two stereophonic amplifiers 9 and 10 which provide the gains and phase shifts corresponding to the intensity and phase information transmitted by the computer 5. The operator thus hears a sound signal which gives him the subjective impression of the direction and the approach of the target and informs him about his nature.

Les informations de commande de synthèse de signaux stéréophoniques sont remises à jour par le calculateur 5 en fonction des mouvements de la tête de l'opérateur et du mouvement extrapolé de la cible. La direction subjective du bruit correspond toujours ainsi à la direction effective de cette dernière.The information for controlling the synthesis of stereophonic signals is updated by the computer 5 as a function of the movements of the head of the operator and of the extrapolated movement of the target. The subjective direction of the noise thus always corresponds to the effective direction of the latter.

L'opérateur est ainsi à même de s'orienter très rapidement dans la direction de la cible qui lui est attribuée et de l'acquérir.The operator is thus able to orient himself very quickly in the direction of the target assigned to him and to acquire it.

Claims (5)

  1. A device for aiding target acquisition by an operator in an armament system comprising a system (2) for the detection and localization of targets supplying information (N, D₁, d and ψ) for localization of the target, more particularly the true direction, the range and the speed of approach of a target, and means (1) in order to furnish audible signals for the operator, characterized in that the means (1) comprise;
    - means (4n) for the synthesis of stereophonic sound signals intended for the operator, said synthesis means synthesizing, on the basis of control information received by the said means (4n), sound signals which are similar to the signal which would be heard by the operator if an analogous target were in his auditory field in a direction corresponding to the true direction of the target in such a manner as to give the operator the subjective sensation of an attack direction corresponding to the true direction in relation to the operator; and
    - means (5) for the conversion of the target localization information received by the said detection and localization system (2) into control information supplied to the said synthesis means (4n) and defining the phase, the intensity and the frequency of the said sound signals to be synthesized.
  2. The device as claimed in claim 1, in which the target localization information comprises the direction (D₁) of the target, characterized in that this direction is combined, prior to conversion, with the direction (D₂) in which the operator is looking.
  3. The device as claimed in claim 1 or in claim 2, in which the target localization information comprise the direction, the range and the speed of approach of the target, characterized in that the conversion means (5) comprise a calculator which converts the direction information (D), the range information (d) and the approach speed information (V) respectively into phase information (ψ) intensity information (I) and frequency information (f).
  4. The device as claimed in any one of the preceding claims 1 through 3, characterized in that the means (4n) for the synthesis of the stereophonic sound signals comprise a REM (7) containing binary signals corresponding to a given target at the output of which there is placed a digital analog converter (8) whose output is itself connected with two stereophonic amplifiers (9 and 10).
  5. The device as claimed in claim 4, characterized in that different types of binary signals are stored in the REM (7), which correspond to different types of targets between which a selection is made owing to supplementary information (N) for the nature of the target supplied by the detection and localization system.
EP87402254A 1986-10-14 1987-10-09 Apparatus for aiding the acquisition of a target by an operator in a weapon system Expired - Lifetime EP0266250B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87402254T ATE66295T1 (en) 1986-10-14 1987-10-09 DEVICE TO ASSIST IN TARGETLOCATION BY AN OPERATOR IN A WEAPONS SYSTEM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8614258 1986-10-14
FR8614258A FR2605094B1 (en) 1986-10-14 1986-10-14 ASSISTANCE DEVICE FOR ACQUIRING A TARGET BY AN OPERATOR IN A WEAPON SYSTEM

Publications (2)

Publication Number Publication Date
EP0266250A1 EP0266250A1 (en) 1988-05-04
EP0266250B1 true EP0266250B1 (en) 1991-08-14

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EP87402254A Expired - Lifetime EP0266250B1 (en) 1986-10-14 1987-10-09 Apparatus for aiding the acquisition of a target by an operator in a weapon system

Country Status (9)

Country Link
US (1) US4967641A (en)
EP (1) EP0266250B1 (en)
JP (1) JPS63118599A (en)
AT (1) ATE66295T1 (en)
DE (1) DE3772152D1 (en)
ES (1) ES2024536B3 (en)
FR (1) FR2605094B1 (en)
HK (1) HK124793A (en)
SG (1) SG112193G (en)

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Also Published As

Publication number Publication date
US4967641A (en) 1990-11-06
HK124793A (en) 1993-11-19
ES2024536B3 (en) 1992-03-01
FR2605094B1 (en) 1990-08-24
DE3772152D1 (en) 1991-09-19
EP0266250A1 (en) 1988-05-04
ATE66295T1 (en) 1991-08-15
JPS63118599A (en) 1988-05-23
FR2605094A1 (en) 1988-04-15
SG112193G (en) 1994-01-21

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