DE3142704A1 - IR siting and control device - Google Patents

Abstract

The application describes a IR siting and control device for target recognition and tracking in the field of defence technology. The device is assembled in modular fashion from a plurality of individual devices, and comprises at least one IR display unit, a goniometer and a scanner common to both these devices. The IR display device is constructed to be TV-compatible with regard to the line number, number of pixels and suppressed field recording. Furthermore, the device also comprises a responder beacon and a range finder. Provided for all the devices is a common entrance optical system which operates both in the visible and the infrared range. This common entrance optical system can consist of zinc sulphide, but it can also consist of zinc selenide. The beam paths for the individual devices are masked out of the main beam path by partially silvered mirrors. In addition, the device can also have a TV monitor.

Description

The invention relates to an IR target and control device

for target detection and tracking in the defense sector Devices of the type described above must for universal usability combine several device properties. These are the characteristics of one Target device (Fliege-Flir) with which the target is captured; a tracking device (Goniometer) with which the placement coordinates of a projectile fired at the target (Missile) are measured from the target and the projectile is steered accordingly; one Distance measuring device (range finder) for determining the distance and an interrogation device for friend / foe recognition (responder beacon).

Relevant devices according to the prior art have so far had the disadvantage that in them only one9 at most two of the basic properties is realized, The devices are only used as thermal imaging devices for target recognition with an attached goniometer equipped.

The friend / foe recognition device is missing for a better detection range or the distance measuring device is missing.

But it is undisputed that the best performance is achieved with a goal and Control unit e.g. for anti-tank missiles is achieved when this target and control device combines all four of the above properties.

The invention is therefore based on the object of such a universal Device.

According to the invention, this object is achieved by a device that has the features specified in the claims.

The main features of the invented device are that all devices work in the same spectral range from 560 nm up to 20 μm, that the same entrance optics are available for all, so that all have the same entrance pupil have, and that the individual devices are assembled in a modular design to form the entire device are.

As a material for the entrance optics common to all devices either zinc sulfide, color: water-clear, with the refractive index n = 2.3 and the spectral range 560 nm - 10 µm or zinc selenide, color: cloudy yellow, also with the refractive index n = 2.3 and the spectral range 560 nm - 10 pim suggested.

This makes it possible to include a TV video device in the overall device to integrate as the said Material both in the area of the visible Light as well as in the IR range. The image generated by the TV video device can are then superimposed on the IR image, from which there is a considerable advantage in the target recognizability results during twilight.

In particular, it is proposed to build up the IR image according to the TV standard, i.e. the same number of lines, number of pixels and the field method for the IR image bring to the application eu. In this case, the IR image and the TV image can be added can be played back on a shared TV monitor. Is this TV monitor a color monitor9 in this way, colors can be assigned to the isotherms in an IR image, which are based on the Make a statement about individual temperatures by using a responder beacon module in the overall device, the risk of killing a friend is reduced. At the same time increased the range for discovering an enemy, since one can rely on identification can go off for detection, which is a very large gain in the range of the IR device brings with it. The range then bends between 10 and 20 km In the drawing shows the structure of the invented device in a schematic diagram.

The picture shows that the overall device in the modular design consists of several Individual devices is composed, all of which have a common entrance optics 1 and connected to one another via partially transparent mirrors 2, 3, 5 and 11 are.

The main part of the device is a scanner 4, which the IR image for Fliege-Flir 6 and the Gonio 7 converts it into a visible image. This scanner is therefore for Fliege-Flir and the gonio identical.

There are two for the Fliege-Flir or thermal imaging device and the Gonio Detectors needed. Of this, the detector for the fly flir is in its grid specially designed for image reproduction and coordinate acquisition. Determined here the element size the geometric and thermal resolution.

The detector for the Gonio differs from the fly-flir detector mainly in the remuneration of the entry window and in its number of elements.

The compensation is very high according to the wavelength of a CO2 laser designed to be narrow-band.

In this case, the rocket to be guided contains the CO2 laser. A stealing of the thermal image by the Package laser beam is not possible because the CO2 laser, as described above, has a very narrow band in its Wavelength is and therefore by appropriate compensation of the deflecting mirror 1 and 2 can be hidden.

For the CO2 laser as a range finder and the C02 laser as a responder beacon the entrance optics 1 of the Gonios and the Fliege-Flir can be used.

It can thus in this modular design through one and the same entry optics the beam paths of the individual components are guided 0 in front of the scanner the beam paths for the TV set 10 and the range finder 9 are reflected, the beams for the responder beacon 8 being branched off from the TV beam path will.

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Claims (5)

A n p r e c h e 1.) IR target and control device for target recognition and tracking in the defense sector, characterized by the following features: a the device is composed of several individual devices in a modular design and includes at least one IR imaging device (Fliege-Flir) (6), a Gonio (7) one for this a scanner (4) common to both devices a responder beacon (8) a range finder (9), b for all devices a common entry optics (1) is provided, which both works in the visible as well as in the infrared range, and c the beam paths for the individual devices are made of the main beam path through partially mirrored mirrors (2; 3; 5) hidden. 2.) IR device according to claim 1, characterized in that the common Entry optics made of zinc sulfide, color: water-clear, with the refractive index n = 2.3 and consists of the spectral range 560 nm - 10 µm. 3.) IR device according to claim 1, characterized in that the common Entrance optics made of zinc selenide, color: cloudy yellow, with the refraction index n = 2.3 and consists of the spectral range 560 nm - 10 pm. 4.) IR device according to claim 1, characterized in that the device also has a TV monitor (10). 5.) IR device according to claims 1 and 4, characterized in that that the IR imaging device (6) in terms of the number of lines, the number of pixels and the Half-frame method is constructed so that it is compatible with television.