DE3310616A1 - Method for camouflaging a sea-going craft against location by electromagnetic radiation and deception device for carrying out this camouflaging - Google Patents

Abstract

To camouflage a sea-going craft against location by electromagnetic radiation from an acknowledged direction of threat, there is used a deception device which is exposed in a place similar to that of the craft to be camouflaged, in relation to the direction of location, and, if appropriate, is also moved in a similar way to the preceding course of the craft to be camouflaged, while the latter, if appropriate with additional camouflaging, turns away. The deception device consists of a stabilised float body having instruments for generating a water curtain which reflects the locating radiation and which is to be designed so that the locating echo is substantially identical to that of the craft to be camouflaged.

Description

Glawe, DeIfs, Moll & Partner - ρ 10793/83 - page 4 -

description

The invention relates to a method for camouflaging a marine vehicle against location based on electromagnetic Radiation from a recognized threat direction through deception by means of a decoy target as well on a deception device to carry out this procedure.

It is known to protect sea vessels against active laser measurement and against passive thermal radiation from aerosols camouflage. Camouflage mats and dipole formers can protect against radar radiation be applied. They have the disadvantage of short floating time, high costs and ineffectiveness in the case of strong, side winds compared to the direction of threat. The camouflage by means of multi-layer occupancy of the to be camouflaged Object is only effective for certain wavelengths. The camouflage of watercraft has also been proposed by means of water curtains. In the event of a threat from passive IR radiation, it is also known to use decoy targets in the form of To apply decoys. The creation of a decoy target is also desirable for the others Locating used electromagnetic radiation, in particular with respect to radar radiation, by generating a decoy target; because this should give the endangered vehicle the opportunity given v / earth to escape a recognized hazard by means of a tactical maneuver.

The invention is therefore based on the object of a method for camouflaging a marine vehicle by deception

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to enable by means of a decoy.

The solution according to the invention is that a deception device to the vehicle to be camouflaged with respect to the direction of threat is similarly exposed and possibly similar to the previous course of the vehicle to be camouflaged is moved while it turns off under additional camouflage, if necessary. It is also an advantage if the Deception device is constructed similar to the contour of the vehicle to be camouflaged. The deception device occurs in the observation in the place of the vehicle to be camouflaged, so that it can escape in the observation shadow of the deceptive device, which is made easier by the additional camouflage if necessary. If necessary, it is sufficient to carry out the additional camouflage the rear of the vehicle to be camouflaged if there is sufficient time to execute before the actual threat occurs the turning maneuver is available. In particular, a rear camouflage is then sufficient and appropriate, if the turning maneuver continues in the camouflage shadow at approximately the previous speed of the vehicle to be camouflaged moving decoy takes place. Often this additional camouflage can also be dispensed with, namely in particular when the deception device is so extensive that during the turning off of the to be camouflaged Vehicle whose often treacherous Hecksee with sufficient security in the tracking shadow of the deception device lies.

To carry out the method, a decoy device is used which, according to the invention, has a pump and Pipe system for generating at least one, but generally a large number of dissolved water jets or fountains

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is equipped, which complement each other to generate the desired reflection surface and contour. About radar waves To be able to reflect, the hydraulic devices are designed so that the generated rays, fountains or Water curtains are dissolved as largely as possible in the form of drops.

So that the deception device corresponds as closely as possible to the vehicle to be camouflaged in terms of its behavior, it can be equipped according to the invention with its own drive and possibly with a remote control device so they - seen from the threat direction - from the point at which the vehicle to be camouflaged was located, whose course can continue at approximately the same speed, at least until the turning maneuver is completed is.

According to the invention, the deception device has a support body, which should be supplemented by a stabilization system in order to avoid the expected interruption in the swell to keep the water radiation low. The stabilization can be achieved by a keel body or by a plurality (In particular two) buoyancy bodies arranged next to one another are secured.

In order to keep the storage space small, the support body can comprise one or more inflatable buoyancy bodies which are expediently tubular elongated in order to give the deception device a sufficient length to be able to. As is known from another context, for example from rescue equipment, the inflation can be carried out accomplish such buoyancy bodies almost suddenly.

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It is also expedient to use the pipe system used to generate the jets or fountains Hoses, especially for the part equipped with nozzles.

The deception device is expediently also equipped with an IR radiator.

The invention is explained in more detail below with reference to the drawing. Show in it:

Fig. 1 front and side view of a

first embodiment,

Fig. 2 front and side view of a

second embodiment and

Fig. 3 is a schematic plan view of the

formed by tracking radiation, decoy vehicle and vehicle to be camouflaged System.

In the embodiment according to FIG. 1, the decoy device consists of a tubular, elongated one Support body 1 with keel ballast bodies 2 arranged on the underside, which also accommodate energy storage devices, pumps and motors can. Above the support hose 1 there is a freely guided hose 3 that is acted upon by pressurized water, which carries a large number of nozzles, the number and size of which is selected so that the jets or fountains generated join together to form a location image that resembles the silhouette of the ship to be camouflaged. One with drive and Inflatable dinghy equipped with remote control devices, if necessary, tows the deception device. The inflatable boat 4 can

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also be equipped with the pumps; the towline

between inflatable boat 4 and. Carrying deception device

then the hose connection between the pump and the

Hose 3 of the deception device or is itself as

Hose formed.

In the embodiment according to FIG. 2, the stabilization of the decoy device is provided by two arranged side by side Support hoses 5 guaranteed, over which the pressurized water spray hose 3 is arranged. A torpedo-like device 6 is used to drive it added to the watercraft to improve their behavior, especially their stability and their direction are known, for example lateral guides .

Hoses for forming the deception device are preferred because of the small storage space. If this doesn't matter, tubular frames can also be used. The pump unit can also be arranged within the drive part 4 or 6 be.

While the dissolved water curtain is a reflection surface forms for enemy tracking devices, IR emitters can also be provided to deceive IR sensors, which are either arranged against the direction of the threat or intensively illuminate the water curtain as such.

When the arrival on the watercraft 7 to be camouflaged is detected by enemy measuring radiation 8, the decoy device or the decoy vehicle is on the threat side ejected. It may already have been stowed properly prepared on board. Is more advantageous

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in general, the space-saving accommodation is not inflated state of the system formed from tubes, with the transfer e.g. in prepared Position along and outside the railing or side wall in the functional state automatically after ejection should be done. The decoy vehicle will then move in the direction of travel of the ship on the threat side continue and a preferably vertically aligned silhouette for the reflection of electromagnetic radiation e.g. form radar or laser radiation. The other enemy location or fire control radiation is then the Hit the surface of this silhouette and with the appropriate formation of this silhouette, that remains of the threat The received echo is roughly the same, especially if the height and length of the water radiation is adapted to that of the ship's silhouette. While the decoy vehicle the Course of the vehicle to be camouflaged continues, the vehicle to be camouflaged, which is now through the series of from the Deception vehicle generated fountains is covered in particular in the area of its treacherous stern water, turn off and thereby escape the threat. Remote control can meanwhile ensure that the decoy vehicle remains turned towards the threat as a shadow generator while the vehicle to be camouflaged settles down. If the latter through additional camouflage means is sufficiently covered, the decoy vehicle can also be independent of the vehicle to be camouflaged Continue course - expediently in continuation of the original course of the vehicle to be camouflaged.

The method described gives the possibility, even with the relatively short time that a threat from a Combat deforestation of e.g. 10 or 20 km remains, the necessary To carry out defensive maneuvers. Any missiles with proximity detonators or IR-Sensorcn are on reaching of the decoy vehicle explode.

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Claims (13)

Claims 1 . 2. Method for camouflaging a marine vehicle against location based on electromagnetic radiation from a detected one Direction of threat by deception by means of a decoy, characterized in that a Deception device from the vehicle to be camouflaged in relation to the direction of location similarly exposed and possibly similar to the previous course of the vehicle to be camouflaged is moved, while this is possibly under additional Turn off camouflage. Method according to claim 1, characterized in that the deception device is constructed in a contour similar to the vehicle to be camouflaged. COPY Glawe, DeIfs, Moll & Partner - ρ 10793/83 - page 2 - 3. The method according to claim 1 or 2, characterized in that that the fooling device has a projection surface that can be determined by electromagnetic radiation is conferred across the threat direction by ejected particles. 4. The method according to claim 3, characterized in that the ejected particles of dissolved water jets are formed. 5. The method according to claim 1, characterized in that that the vehicle to be camouflaged in relation to the direction of threat behind the decoy turns away and one additional camouflage is carried out at the rear. 6. Deceptive device that can be deployed as a decoy target for carrying out the method according to one of claims 1-5, characterized in that they are dissolved with a pump and pipe system for generating at least one Water jet is equipped. 7. A deception device that can be deployed as a decoy target to camouflage a watercraft in order to carry out the method according to one of claims 1-5, in particular according to claim 6, characterized in that it is with is equipped with its own drive. 8. decoy device according to claim 7, characterized in that it is remotely controllable. 9. decoy device according to one of claims 6-8, characterized in that it has a support body Glawe, DeIfs, Moll & Partner - ρ 10793/83 - page 3 - an inflatable buoyancy body (1,5). 10. decoy device according to claim 9, characterized in that that the float is tubular. 11. decoy device according to claim 10, characterized in that that several buoyancy hoses (5) are arranged side by side. 12. Deception device according to one of claims 6-11, characterized in that the pipe system at least comprises a flexible hose (3) equipped with spray nozzles. 13. decoy device according to any one of claims 6-12, characterized characterized in that it is equipped with an IR radiator.