EP3702720A1 - Dircm à transfert simplifié entre les modules - Google Patents

Dircm à transfert simplifié entre les modules Download PDF

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Publication number
EP3702720A1
EP3702720A1 EP20157227.8A EP20157227A EP3702720A1 EP 3702720 A1 EP3702720 A1 EP 3702720A1 EP 20157227 A EP20157227 A EP 20157227A EP 3702720 A1 EP3702720 A1 EP 3702720A1
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EP
European Patent Office
Prior art keywords
target
module
area
tracking
modules
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EP20157227.8A
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German (de)
English (en)
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EP3702720B1 (fr
Inventor
Andreas von Mirbach
Klaus Dresel
Markus Mauder
Martin Regensburger
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Diehl Defence GmbH and Co KG
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Diehl Defence GmbH and Co KG
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H13/00—Means of attack or defence not otherwise provided for
    • F41H13/0043—Directed energy weapons, i.e. devices that direct a beam of high energy content toward a target for incapacitating or destroying the target
    • F41H13/005—Directed energy weapons, i.e. devices that direct a beam of high energy content toward a target for incapacitating or destroying the target the high-energy beam being a laser beam
    • F41H13/0056—Directed energy weapons, i.e. devices that direct a beam of high energy content toward a target for incapacitating or destroying the target the high-energy beam being a laser beam for blinding or dazzling, i.e. by overstimulating the opponent's eyes or the enemy's sensor equipment

Definitions

  • the invention relates to DIRCMs (Directed Infrared Counter Measures) or corresponding DIRCM systems.
  • Diehl Defense integrates three of the tried and tested J-MUSIC (Multi-Spectral Infrared Countermeasure) laser devices from Elbit into an extended overall system, a complete To ensure 360 ° all-round protection for the aircraft.
  • the new DIRCM system works in conjunction with the on-board missile warning system and focuses the highly dynamic and precisely guided laser beam directly onto the infrared seeker head of the attacking object.
  • the DIRCM system comprising a plurality of DIRCM subsystems operable to track and interfere with IR-guided missiles; and wherein the DIRCM subsystems include a first DIRCM subsystem and a second DIRCM subsystem installed on the platform such that: the first DIRCM subsystem is operable to track and target IR guided missiles in a first coverage area to disturb; the second DIRCM subsystem is operable to deliver IR-guided missiles in a second Track and disrupt coverage area; and both the first and second DIRCM subsystems are operable to track and interfere with IR-guided missiles in an overlap area comprising a first handover sub-section adjacent to the first coverage area and a second handover sub-section adjacent to the second coverage area includes.
  • the method includes an overlap operation and a handover operation.
  • the object of the invention is to provide improvements in DIRCMs.
  • the DIRCM system contains an interface to a warning system.
  • the warning system is used to report approaching targets to the DIRCM system via the interface.
  • the DIRCM system contains at least two DIRCM modules or subsystems. Each of the modules is used to track the target in a tracking mode (so-called “tracking") and to combat the target in a beam mode (so-called "jamming"). Tracking means locating the target, in particular the above.
  • IR seeker head so that targeted irradiation is possible. Fighting takes place by irradiation, that is, the emission of radiation, in particular the above. Laser beam that is directed into the seeker head, d. H. that the seeker head is irradiated.
  • the module contains a tracking unit which carries out the tracking and a beam unit which carries out the irradiation.
  • the beam unit contains in particular an interference laser for irradiating the target.
  • a respective module or its tracking / beam units are housed or structurally concentrated or integrated, in particular in so-called "turrets".
  • Each of the modules has a total area for tracking and / or fighting targets.
  • tracking and fighting is possible in the entire area.
  • - in particular at the edge of the overall area - only tracking or fighting is possible.
  • these edge areas are so small in particular that they can be neglected.
  • the total area is therefore the entire spatial area in which - especially in the case of a module installed on a platform to be protected - the module has potential targets can pursue and / or fight or irradiate.
  • the overall area usually contains a solo area in which only the module in question is available to pursue and / or combat the target.
  • the overall area contains an intersection area with at least one, in particular exactly one, other of the modules.
  • all relevant modules are available for tracking and / or fighting the target.
  • the totality or amalgamation of all total areas forms a defense area in which the DIRCM system is able to pursue and / or combat goals with the help of at least one module.
  • Activating a module means starting and continuing the irradiation or tracking, deactivating means ending and ending the irradiation or tracking.
  • a step A) is carried out when the target is reported by the warning system.
  • the active module activates the tracking mode and the beam mode for the target. All other modules remain deactivated for this target.
  • the module in question therefore begins with the pursuit and irradiation or combat of the target and continues this until further notice.
  • the statements below always apply to a specific goal.
  • the system can fight other targets in parallel. However, this should not be considered here.
  • step A in particular, a specific module is activated on the basis of the detection of a target by the warning system. This applies in particular to the case that a target is newly reported in the defense area. This means that a target in the defense area is recognized for the first time or is recognized again after being lost (e.g. unintentional breaking off of the pursuit).
  • step B) is carried out when the target is in one of the solo areas.
  • the tracking mode and the beam mode become or remain with that active module that belongs to the solo area in question activated.
  • the modes are already activated and therefore remain activated, so they do not have to be reactivated.
  • the active module continues to pursue and fight the target. Tracking mode and beam mode for all other modules are or remain deactivated (depending on the previous status).
  • a step C) is carried out when the target is in the intersection between the active module and a second of the modules.
  • the (only) active module forms a first module.
  • a single active module is present, in particular or regularly, since the target was either detected in the intersection area and exactly one module was activated in accordance with step A) or the target enters the intersection area from a solo area, the only one in the solo area in accordance with step B) responsible module is the currently active module.
  • step C) either a step C2) (see below) or a step C1) is carried out as follows: In a first step C1a), the tracking mode and the beam mode are deactivated for the first module. In a subsequent step C1b) the tracking mode and the beam mode are activated for the second module after the deactivation has taken place in the first module. In particular, in step C1), by deactivating the first module and then activating the second module, the target or its pursuit and combat is transferred from the first to the second module. Now the second module is the active module.
  • step C1 After the active module has changed from the first to the second module in accordance with step C1), the following applies: The second module now becomes the “active” and thus the “first” module in a next renewed step C). As a result, d. H. If step C1) is carried out again, a return to the previous (but now "second” module) or a transfer to a third (previously uninvolved, now "second") module can also take place if other modules are responsible in the editing area are. Step C1 can therefore be carried out again if necessary or if desired.
  • one of the modules is to be selected in step C1) or C1b), which is then to take over the tracking and / or irradiation of the target as the second module.
  • step C2) is carried out as follows: In the first (active) module, the tracking mode and the beam mode remain activated. In particular, the goal will continue to be pursued and irradiated or fought by the first module. This applies in particular to the case that a target moves from a solo area, in which it has already been followed and irradiated by the first module, into the adjacent cutting area. The first or active module continues uninterrupted with tracking and irradiation.
  • Steps C1) and C2) can also be carried out alternately or repeatedly as long as the target is in the intersection area or has not been successfully fought, i.e. when either the active module is to remain active or another transfer to another module should take place.
  • the target is in particular a missile or a missile.
  • the warning system is in particular a missile warning system (missile warning system or MWS: Missile Warning System).
  • the invention is based in particular on a DIRCM system which is mounted on a platform / object to be protected. That is, alignments, placements, relative positions, location, shape and orientation of the resulting overall, solo, sectional areas and the defense area on an object to be protected are fixed and known because the modules are fixed or in a known manner on the object are arranged.
  • each module that is not occupied by tracking and / or irradiation at a specific point in time is free at all times in order to pursue and / or irradiate a further target.
  • step C1 it is not necessary to switch from one module (in particular turret) to another (in particular another turret) in accordance with step C1) to carry out parallel tracking by the first and second module.
  • the second tracking unit and beam unit are activated according to step C1b) and the target is irradiated by the second module.
  • an approach area of the target provided by the warning system can be used for pivoting, ie roughly aligning the tracking unit with the target (see below).
  • the DIRCM systems according to the invention are particularly z. B. installed in aircraft and are used to defend against infrared-guided missiles (target), which are either from the ground (so-called MAN-PADs, Man Portable Air Defense Systems) or from other aircraft (so-called air-to-air missiles) be shot down.
  • target infrared-guided missiles
  • MAN-PADs Man Portable Air Defense Systems
  • air-to-air missiles In larger aircraft including helicopters (platform, object to be protected), more than one DIRCM device (module) is installed in order to be able to cover a larger solid angle and thus to offer more protection.
  • Several DIRCM devices form a DIRCM system.
  • the part of the DIRCM device (module) that controls the laser beam (tracking unit) and emits it (beam unit) is called the turret in particular.
  • the aircraft have missile warning systems that recognize the incoming threat (target) and forward the coordinates (approach area) to the DIRCM system (via the interface).
  • the DIRCM system or its control and evaluation unit, see below) in particular calculates the best-positioned turret (so-called selection criterion, see below), which then swivels towards the target, takes over the track (tracking) and the Seeker head of the approaching missile disturbs (irradiates) the missile by means of laser and thus deflects (fights) the missile.
  • the DIRCM system selects a second turret, which is particularly better positioned.
  • the invention is particularly concerned with the transfer of the target from one turret to the second turret, possibly to a third turret, etc., if available.
  • the invention is also based on the following findings: In particular in agile encounter situations between aircraft (object to be protected) and approaching missile (target), it can happen that the fight against the threat (target) from one turret to the next becomes necessary because the target is moved out of the effective area (total area) of the first turret.
  • the DIRCM system decides (transfer criterion) about the change from one turret to the next (selection criterion). If a handover is necessary, the newly selected (second) turret swings to the incoming threat, e.g. B. using the information from the warning system with regard to the approach area, without activating its tracking mode.
  • the first turret switches off the laser (beam mode) and then the second turret switches on its laser and begins to disturb (irradiate) the Seeker head of the approaching missile.
  • the DIRCM system commands the third turret accordingly to the top of the missile.
  • the laser of the second turret is switched off as soon as the third turret with its field of vision (detection area of the swiveled-in tracking unit) has reached the threat or vice versa.
  • the active module is selected according to a selection criterion in step A).
  • a selection criterion A variety of options are available to those skilled in the art for such selection criteria.
  • B. depending on the combat tactics, threat situation, object to be protected, etc. can be selected or adapted.
  • a corresponding selection criterion can also be used if there are more than two modules in the intersection area which, as a respective second module, could take over the target from a first module.
  • a selection criterion can be used to determine which of the existing modules is to be responsible as the second module for taking over the fight.
  • the basic condition that the module is free and ready for tracking and / or irradiation must, however, be met in particular for all variants of the selection criterion.
  • the following procedure results: If the target is detected by the warning system in the solo area, the fight is carried out with the module responsible there started. If the target is detected by the warning system in the cutting area, a tracking and fighting module is selected according to the selection criterion.
  • an interface to a warning system for reporting a respective approach area of an approaching destination is used as the interface.
  • the warning system is able to output an approach area for the target and to transmit it to the system.
  • the approach area is in particular an area that is larger than the target area or larger than or equal to the detection area of a module at a certain deflection.
  • the target range indicates the accuracy within which the target is successfully pursued by the module. This is small enough that irradiating the target in the target area leads to the interference beam being directed precisely into the IR seeker head of the target.
  • the detection area is the area in which the target must be located so that the module can successfully track it, that is, it can successfully detect the target within the target area. In other words, with the aid of the module, aiming is possible with sufficient accuracy to safely irradiate the target.
  • the warning system only supplies a rough direction or rough position of the target, so that a targeted irradiation is not always ensured.
  • step C1 is only carried out when a handover criterion is met.
  • the transfer criterion is also checked in step C2).
  • step C) the transfer criterion is checked permanently, permanently or repeatedly for fulfillment. As long as it is not met, the first module remains active using step C2) and the transfer criterion continues to be checked. If it is fulfilled, step C1) is carried out and the target is transferred to the second module, which then becomes the first active module with regard to tracking and irradiation and the former first the second.
  • step C1 is carried out and the target is transferred to the second module, which then becomes the first active module with regard to tracking and irradiation and the former first the second.
  • Specific tactics of target tracking and irradiation can be implemented through appropriate handover criteria.
  • a handover takes place as soon as, that is to say immediately after, the second module is ready.
  • the basic condition that the second module is free and ready for tracking and / or irradiation must, however, be met in particular for all variants of the transfer criterion.
  • a transfer criterion is used as follows.
  • step C1) before step C1a), the second module is roughly aligned towards the target so that the target comes into the detection range of the second module. In an optional embodiment, this is done using the approach area provided by the warning system. This variant assumes that the above-mentioned approach area for the target is available and used by the warning system.
  • the rough alignment ensures that the target safely enters the (potential) detection area of the second module or ultimately lies in it, so that successful tracking (successful detection of the target in the target area in order to track it exactly) by the second module becomes possible.
  • the following is therefore used as the transfer criterion: that the second module is ready for successful target tracking and / or irradiation in that the target comes into the detection area of the second module - in particular from its tracking unit.
  • the first and second module it is in particular not necessary to carry out parallel tracking by the first and second module when transferring from one module (first module, in particular turret) to another (in particular second, different turret) according to step C1) .
  • the tracking mode of the second module is still deactivated.
  • the second tracking unit and beam unit are activated according to step C1b) and the target is then precisely tracked and irradiated by the second module.
  • the second tracking unit and beam unit are activated according to step C1b) and the target is then precisely tracked and irradiated by the second module.
  • the first and second modules emit a predeterminable signal pattern for combating the target.
  • the signal pattern has a time course.
  • the signal patterns of the first and the second module are phase-synchronized with regard to the time course.
  • Phase-synchronized means the following: In general, the irradiation or combat of the target is carried out using an interference or irradiation code.
  • the code is a specific pattern of radiation pulses / waveforms, the pattern being emitted according to a specific schedule.
  • Phase-synchronized modules generate the same pattern at the same time and in the same time sequence or offset by a constant time offset. That is to say, they emit radiation of the same or different amplitudes at the same time or with a time delay, but in the course of time it is the same signals or, in each case, sections of a signal running according to the desired course of time.
  • the missile is irradiated by the first and the second module at the same time, no destructive interference occurs, but the two signals arriving at the target are added there. In this case, the amplitude of the individual signals emitted by the modules can therefore be reduced in particular.
  • the missile is permanently hit by the uninterrupted interference code. If, on the other hand, there is a pause in a time interval dT during the change from the first to the second laser beam in step C1) (the missile is not irradiated by either the first or second module during the pause), in a first embodiment the code can be paused for the respective time dT become.
  • the first module then ends its irradiation in the code phase P0 and after the time interval dT, the second module continues its signal at the same phase P0. In the target, the code is then paused for the time dT, after which it is continued in the same phase.
  • the fault code phase continues in real time; H. the first module ends the irradiation in step C1a) with the code phase P0, after the time interval dT the second module continues the irradiation with the phase P0 + dT.
  • the code part is then skipped during the time interval dT, the code is indeed transmitted with a "gap", but otherwise in continuous real time. The appropriate procedure can again be chosen depending on the combat tactics.
  • step C1 before step C1a), the beam mode, but not the tracking mode, is activated in the second module, the second module deliberately aiming past the target.
  • the following can also be selected: either the target can be deliberately aimed past or the target can also be deliberately aimed at.
  • step C1b) the beam mode remains activated in the second module and the second module deliberately aims at the target.
  • Aiming can take place on the basis of the approach area of the warning system, in particular if the tracking mode is deactivated for the associated module.
  • the target continues to be targeted if the target has already been targeted beforehand.
  • double or multiple irradiation can generally be carried out - that is, both in the context of step C2) or step C1) as soon as the target can be irradiated by at least two beam units:
  • exactly one beam can always be exactly be directed towards the goal and the other rays deliberately aim past the target, as explained above.
  • any number of phase-synchronized beams can also simultaneously radiate onto the target or at least not consciously radiate past the target. I.e. exactly one beam of the module with activated tracking mode can shine through precise aiming, the others can shine in other ways, e.g. B. based on the approach area, since their tracking mode is not activated.
  • the second module aims past the target by aiming at an edge or outside of the approach area provided by the warning system, or it does not aim (in connection with the embodiment of phase-synchronized modules) by not aiming past the target by aiming at the edge or within the approach area, in particular at the center of the approach area. In this way, both aiming and passing can be carried out without using the active tracking mode for the corresponding module.
  • an additional method step D) is provided: Step D) is carried out if the target is located in a solo area starting from step B) and then directly from the current solo area, which then represents a "previous solo area", to another Solo section moves. Then the tracking mode and the beam mode are deactivated in the previous solo area on the associated module. The tracking mode and the beam mode are then activated in the other solo area with the associated module as the active module. The previously active module (that of the previous solo area) becomes inactive and that of the other solo area becomes the active module. In particular, the target is changed from the previous one to another solo area, bypassing the intersection areas.
  • At least one or more or all of the areas are defined in a coordinate system as a mathematical model / models. Decisions that affect these areas are then made using the mathematical model (s).
  • the corresponding areas can thus be stored as data models, in particular in a control and evaluation unit, and processed quickly and effectively with regard to decisions to be made.
  • the object of the invention is also achieved by a DIRCM system according to claim 13 for carrying out the method according to the invention, with an interface to a warning system for reporting approaching targets, with at least two DIRCM modules for tracking the target in a tracking mode and for fighting the target in a beam mode, wherein each of the modules has a total area for tracking and / or fighting targets, and the total area includes a solo area in which the module in question is available for tracking and fighting, and the total area has an intersection with at least one other of the Contains modules in which all relevant modules are available for tracking and / or fighting, with a defense area being the set of all total areas, and with a control and evaluation unit for performing the method steps of the method according to the invention.
  • the beam mode and the tracking mode can be activated and deactivated independently of one another.
  • the control and evaluation unit contains in particular the above-mentioned mathematical models or a corresponding device for implementing and processing the models.
  • the warning system is integrated into the DIRCM system as part of the system, although the warning system can still be an independent system.
  • the interface is an interface to a warning system for reporting a respective approach area of an approaching destination, or the warning system is one for outputting the approach area.
  • At least two of the modules are set up to emit a predeterminable signal pattern that has a time profile in order to combat the target, and the modules can be phase-synchronized with regard to the time profile or, if required, phase-synchronized during operation, as described above.
  • the object of the invention is also achieved by an object according to claim 16, which is to be protected from an approaching target, with a DIRCM system according to the invention.
  • the object is a vehicle.
  • the vehicle is an air, land or sea vehicle, an airplane or a helicopter, in particular a transport and / or passenger airplane or helicopter.
  • Figure 1 shows a DIRCM system 2 in the fight against an approaching target 4.
  • the system 2 is mounted on or on an object 6 to be protected, here a transport aircraft shown only symbolically in detail.
  • the approaching target 4 here is an IR-guided enemy missile that is intended to destroy the target 4.
  • the system 2 contains an interface 8 to a warning system 10, which is also attached to the object 6.
  • the warning system 10 serves to report approaching targets and is an MWS here, and it also serves to report a respective approach area 11 of the respective target.
  • the approach area 11 is a rough area and indicates an approximate position or direction to the target, but an exact or reliable location or tracking of the target is not possible as a result. In particular, it is therefore not possible to precisely irradiate the IR seeker head of the rocket with a laser.
  • the following is As a representative of the totality of all potential goals, the specific goal 4 is always spoken in order to explain the invention.
  • the system 2 also contains two DIRCM modules 12a, b, here so-called turrets, which are attached to the transport aircraft. Both are each suitable for tracking the target 4 in a tracking mode MV, that is to say to locate it with pinpoint accuracy, and to irradiate it in a beam mode MS and thereby combat it.
  • each module 12a, b contains a tracking unit 16, for executing the beam mode MS a beam unit 18.
  • the target 4 can be tracked by the module 12b, i. H. are located so precisely that a laser beam 20 can be radiated into the IR seeker head of the target 4 with the aid of the beam unit 18 in order to combat the target 4 by deflecting the target 4 away from the object 6. Thanks to this precise location, a targeted laser beam can be directed into the rocket's IR seeker head.
  • Each of the modules 12a, b is assigned a respective total area BGa, b, in which the respective module 12a, b is able to pursue the target 4 and to fight it.
  • the edges of the total areas BGa, b are thickened and shown in dashed lines for BGb.
  • Each of the total areas BGa, b in turn contains a solo area BOa, b.
  • In the solo area BOa only the module 12a is able to pursue and fight the target 4, in the solo area BOb only the module 12b.
  • both modules 12a, b are able to pursue the target 4 and to fight it.
  • a defense area BA is formed by the union of the total areas BGa, b; in this a defense of target 4 is through. at least one of the modules 12a, b or through the system 2 is possible.
  • the system 2 also contains a control and evaluation unit 14 which is set up to carry out the following method for combating the approaching target 4 by the system 2: Initially, no target 4 flies to object 6. The system 2 is therefore initially on standby. Both modules 12a, b are deactivated.
  • the warning system 10 monitors the object for approaching targets 4. At a certain point in time, the warning system 10 reports the approaching target 4 and also its approach area 11 via the interface 8. Since the target 4 is now reported by the warning system 11, exactly one is generated according to the method of modules 12a, b is selected as the active module and the tracking mode MV and the beam mode MS for target 4 are activated in this module.
  • the Selection is made using a selection criterion KA.
  • the selection criterion KA consists in selecting that module 12a, b which is closest to the target 4, in this case the module 12b.
  • the target 4 is tracked by the module 12b and fought by irradiating the laser beam 20 into the IR seeker head of the target 4 in order to deflect the target 4 away from the object 6.
  • the method continues to check whether the target 4 is located in one of the solo areas BOa, b or in the intersection area BS. If the target 4 (not shown here) were in the solo area BOb or were to move there, the tracking mode MV and the beam mode MS would remain activated in the currently active module 12b.
  • the method it is also checked whether the target is located in the intersection area BS, which is the case here.
  • the active module 12b is defined as the first module and the other module 12a as the second module, which would alternatively be able to track and irradiate the target 4.
  • the tracking mode MV and the beam mode MS now either remain activated in the currently active module 12b or it is transferred to the other module 12a, as will be explained further below.
  • the selection of these two variants is decided on the basis of a transfer criterion KÜ, which is continuously monitored or checked.
  • the transfer criterion KÜ is that the target 4 reaches an interface 21.
  • the target 4 moves - as shown by the arrow 22 - in the defense area BA.
  • the target 4 actually reaches the interface 21.
  • the tracking mode MV and the beam mode MS are deactivated for the first, currently active module 12b.
  • the second module 12a then becomes the active module and its tracking mode MV and beam mode MS are activated.
  • the transfer criterion KÜ will continue to be checked continuously.
  • Figure 1 also shows how the target 4 moves at a later point in time along the arrow 24 out of the solo area BOa, bypassing the intersection area BS, directly into the solo area BOb.
  • tracking mode MV and beam mode MS are switched directly from module 12a to module 12b, ie deactivated in module 12a and activated in module 12b.
  • Figure 2 shows, only by way of example and schematically, over time t, a signal pattern according to which the laser beam 20 is emitted or its amplitude is modulated in order to deflect the target 4.
  • Figure 2a shows the target course of the signal pattern over a longer period of time.
  • the module 12b first the module 12b generates the laser beam 20 according to FIG Figure 2a .
  • the goal 4 reaches the point P in at time t0 Fig. 1 so that from this point in time t0 the laser beam is no longer from module 12b, but according to Figure 2b is emitted from module 12a.
  • the signal patterns of the laser beams 20 of the modules 12a, b are phase-synchronized here.
  • the irradiation by the module 12b ends at phase P0 of the entire signal curve after Fig. 2a
  • the irradiation of the module 12a continues at phase P0.
  • the target 4 becomes permanent with the continuous signal pattern shown in FIG Fig. 2a (solid and dashed section) irradiated, since the solid signal section in Figure 2b exactly to the dashed in Fig. 2a corresponds.
  • d the irradiation from module 12a is continued at time t0 + dT with phase P0 at which the irradiation of module 12b ended.
  • the target 4 with the complete signal pattern will be shown in FIG Fig. 2a irradiated, but the signal pattern is paused or stretched or stretched over time for the duration dT.
  • the "code" according to Fig. 2a is completely irradiated onto target 4, albeit with a time gap dT.
  • Figure 3 shows an excerpt from system 2 and an alternative combat situation and alternative variants of the transfer in the section area BS between the modules 12a and 12b.
  • the target 4 moves along the arrow 22 and is initially tracked and irradiated by the active first module 12a. Even before point P is reached (where the transfer criterion KÜ is met) - here from the earliest possible point in time at which module 12b is ready - the beam mode MS is activated in the second module 12b, but not the tracking mode MV.
  • the module 12b intentionally aims past the target 4 by aiming at its edge here (situation I in Fig. 3 ).
  • the module 12b also aims - at least roughly - at the target 4 using the approach area 11 by aiming at the center of the approach area 11 (alternative situation II in Fig. 3 ). Due to the phase synchronization, both signal patterns are at the same time, so that the laser beams 20 are not mutually canceled in the target 4, but rather their addition takes place with regard to the signal pattern.
  • module 12a is then completely deactivated (tracking mode MV and beam mode MS) and tracking mode MV is started for module 12b.
  • tracking mode MV is started for module 12b.
  • the laser beam 20 is then swiveled onto the target 4, which is now possible with pinpoint accuracy due to the activated tracking mode MV in module 12b.
  • a mathematical model 26 of the areas BGa, b, BOa, b, BS and BA is available in the control and evaluation unit 14 in order to be able to make the appropriate decisions with regard to the areas mentioned.
  • the target 4 is then also located in the corresponding model 26 as a virtual target. Decisions as to whether and where target 4 is located in the relevant areas, whether criteria KA, KÜ are met or not, etc. are then made - where necessary - using model 26.
  • Figure 4 illustrates the following variant for the transfer of the target 4 or the tracking mode MV and beam mode MS from the first module 12a to the second module 12b.
  • the target 4 is successfully tracked by the module 12a (activated tracking mode MV), that is, it is precisely located (symbolized by the cross on the target).
  • it is successfully irradiated by module 12a in beam mode MS.
  • the module 12b is deactivated (tracking mode MV and beam mode MS deactivated).
  • the detection areas 17a, b of the modules 12a, b or of their tracking units 16 are also shown. As soon as the target 4 is initially located within such a detection area 17a, b of the modules 12a, b, when the tracking mode MV is activated, the target can be detected exactly in the respective target area (cross marking).
  • the warning system 10 supplies the (rough) approach area 11 of the target 4 in parallel.
  • This approach area 11 is now used to pivot the second module 12b - with the tracking mode MV and beam mode MS still deactivated - onto the target so far that the target is in the Detection area 17b of module 12b or of its tracking unit 16 arrives.
  • the pivoting in is shown by arrow 28.
  • the tracking unit 16 has not yet pivoted far enough onto the target 4.
  • Their detection area 17b is still distant from target 4. Activating the tracking mode MV in module 12b could not yet lead to successful tracking by module 12b.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
EP20157227.8A 2019-02-20 2020-02-13 Dircm à transfert simplifié entre les modules Active EP3702720B1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020004949A1 (de) 2020-08-14 2022-02-17 Diehl Defence Gmbh & Co. Kg DIRCM mit autarker überschneidungsfreier Übergabe zwischen Modulen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2442131A1 (fr) * 2006-04-10 2012-04-18 Elta Systems Ltd. System de brouillage distribué
EP3081895A1 (fr) * 2015-04-17 2016-10-19 Elettronica S.p.A. Système dircm à tourelles multiples et procédé de fonctionnement associé

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2442131A1 (fr) * 2006-04-10 2012-04-18 Elta Systems Ltd. System de brouillage distribué
EP3081895A1 (fr) * 2015-04-17 2016-10-19 Elettronica S.p.A. Système dircm à tourelles multiples et procédé de fonctionnement associé
EP3081895B1 (fr) 2015-04-17 2018-06-06 Elettronica S.p.A. Système dircm à tourelles multiples et procédé de fonctionnement associé

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020004949A1 (de) 2020-08-14 2022-02-17 Diehl Defence Gmbh & Co. Kg DIRCM mit autarker überschneidungsfreier Übergabe zwischen Modulen

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IL272707A (en) 2020-08-31

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