Abstract: A spreading device (20) for spreading a fiber filament bundle (32) to form a flat fiber band (14) has at least one convexly bent spreading edge (80) that is movable. The convexly bent spreading edge has at least one direction component perpendicular to a longitudinal extension of the fiber filament bundle (32) to be spread relative to the convexly bent spreading edge. The fiber filament bundle is configured to be placed under tension onto the convexly bent spreading edge (80) and thereafter is configured to be moved again with the at least one direction component perpendicular to the fiber filament bundle (32) away from the fiber filament bundle to release the fiber filament bundle from the convexly bent spreading edge (80).

Abstract: A method for direction finding by means of monopulse formation in a radar system with electronically controlled group antenna and analog beam shaping of sum and difference channels, a self-test of the antenna being carried out to identify failed receiving elements, and the result of the self-test going directly into the monopulse formation and the test thereby being error corrected. The result of the self-test is converted into correction values that, independently of the antenna viewing direction, are combined with those from the sum channel signal and the difference channel signals of the antenna.

Abstract: A foldable log-periodic antenna includes a feed line, one or more transmitting elements for transmitting and/or receiving electromagnetic signals, one or more supporting elements for holding the transmitting elements, and one or more elements for producing a tensile stress on the transmitting elements. One of the a transmitting elements is connected to one of the supporting elements and to the feed line, and with one supporting element is connected to the feed line via an articulated joint apparatus, such that the antenna can be moved from a transport position to an operating position and vice versa. The one or more elements for producing a tensile stress on the transmitting elements is a flexible tube, and can have an internal pressure applied to them and are connected to the supporting elements for holding the transmitting elements.

Abstract: The invention relates to a structural component for an aircraft or spacecraft, comprising a component core extended across a component area, a first and second cover layer, which are formed on two opposite bounding surfaces of the component core and extend across the component area, a plurality of braces, which are distributed across the component area and connect the first and second cover layers to each other through the component core, and a stiffening belt, which extends between the cover layers along a stiffening line that extends substantially parallel to the component area.

Abstract: A method for effecting the airborne determination of geographic coordinates of corresponding pixels from digital synthetic aperture radar images, where the SAR images are available in the form of slant range images and the recording position of the respective SAR image is known. The coordinates of the corresponding pixels in the SAR images and the corresponding range gates are used in each case to determine the distance between a corresponding resolution cell on the ground and the respective recording position of the respective SAR image. The determined distances and associated recording positions of the SAR images are used to determine the geographic coordinates of the corresponding pixels in the SAR images by employing a WGS84 ellipsoid.

Abstract: A mechanical particle filter comprises a membrane having a plurality of pores. At least one partial region of the surface of the membrane, that is accessible for the medium to be filtered, includes a carbon material having a diamond structure.

Abstract: A method for producing a sensor-supported, synthetic view for landing support of helicopters under brown-out or white-out conditions is provided. A virtual 3-D representation of the landing zone is continuously created from 3-D data of the intended landing zone recorded during the landing approach and a monitoring routine is available to ensure that no 3-D data that was produced under brown-out or white-out conditions is considered in the representation. As soon as the monitoring routine detects that 3-D data has been recorded under brown-out or white-out conditions, an additional radar sensor is activated to continuously produce distance and/or Doppler data of potential objects entering the landing zone, the objects being displayed to a pilot of the landing helicopter in the synthetic view.

Abstract: A mount for a movable sensor on a support structure is provided. The sensor is alignable with a sensor target. The mount includes at least two mutually spaced sensor-based bearings, at least two mutually spaced support-structure-based bearings, at least two longitudinally adjustable actuator units arranged between an associated sensor-based bearing and an associated support-structure-based bearing, and a center bearing that is configured to pivotably support the sensor on the support structure about a kinematic center point on at least two spatial axes.

Abstract: The present invention provides a device for producing a composite fiber component. The device comprises a shaping tool having a shaping surface for shaping a resin-soaked fiber material, a filter panel that is arranged at the shaping surface and comprises a porous material, and a means for generating a negative pressure at the shaping surface at a side of the filter panel that faces away from the fiber material. In another aspect, the invention provides a method for producing a composite fiber component. First, a filter panel comprising a porous material is provided. In subsequent steps, a resin-soaked fiber material is arranged on the filter panel, the fiber material on the filter panel is covered and a negative pressure is generated at a side of the filter panel that faces away from the fiber material.

Abstract: Wind farm and method of controlling operation of a wind farm. The wind farm including a plurality of wind power plants, each equipped in a same manner with a pivoted rotor structure and a control device for controlling the operation of the individual wind power plants. The control device is structured and arranged to synchronize the rotary motions of the rotor structures of at least some of the plurality of wind power plants.

Abstract: A device for shaping a workpiece is provided. The device includes at least one first and one second component between which the workpiece to be shaped can be molded under the effect of heat. The design and/or the material properties of the first and/or the second component are selected such that the component's thermal expansion is different in different directions.

Abstract: An adhesive composition for detachable adhesive bonds is based on adhesive matrices and expansion material, the particles of the expansion material being at least partially encapsulated.

Abstract: A line segment of a fuel line in an aircraft for connecting at least three lines is provided. In order to provide fuel channeling in an aircraft, having, for example, better damage or leakage features, a line segment is provided that has a wall structure forming a continuous cavity. The wall structure has at least three adapter openings for connecting the continuous cavity with respectively one line. The wall structure is designed double walled between the adapter openings in such a way that an intermediate cavity is formed, which encases the continuous cavity.

Abstract: Radome with an integrated plasma shutter covering an antenna and method for selectively shielding an antenna. The radome includes a honeycomb core formed to contain a plasma-guiding layer, and coverplates arranged to sandwich the honeycomb core. Electrodes are structured and arranged for plasma excitation, the electrodes being high frequency (HF)—transparent at least in an operating frequency range of the antenna. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.

Abstract: An aircraft having a variable geometry for adapting the flight characteristics to different flight situations includes a fuselage with a pair of wings projecting on both sides of the fuselage in the transverse direction (y), each of which wings has an inner wing section arranged stationarily with respect to the fuselage and an outer wing section adjacent thereto and pivotable about a pivot axis. The pivot axis is oriented in a direction deviating from the longitudinal direction (x) of the aircraft by a maximum of 40°.

Abstract: A laser detection method and apparatus for detection of laser beams can each perform operations for producing an interference image from detected light radiation, recording the interference image, and processing the recorded interference image in order to detect laser radiation. In order to allow more robust and faster laser detection, the apparatus and method can detect a spatially defined point distribution from the interference image and transform the point distribution such that a grid interval remains between a point grid in the point distribution, and a fixed position, which is independent of a position in the original image, is associated with the point grid. The apparatus and method can further detect a grid interval in the point grid that was transformed, and detect the position of the point grid from the point distribution by filtering with the assistance of the grid interval.

Abstract: In a method and apparatus for compensating for gain changes in an amplifier circuit comprising radio-frequency modules and attenuation elements, a radio-frequency module is driven with a first temperature-dependent monitoring voltage UHF(T), and an attenuation element with a second temperature-dependent monitoring voltage UVG(T). The first temperature-dependent monitoring voltage UHF(T) is produced by applying a temperature dependency to an individual monitoring voltage Uopt, which is predetermined for a predetermined temperature for a radio-frequency module, in order to set the optimum operating point of the radio-frequency module. The second temperature-dependent monitoring voltage UVG(T) is produced by applying a temperature dependency to a predetermined monitoring voltage UVG—T for the attenuation element. The monitoring voltage UVG—T is determined in an iteration method, such that the output power of the amplifier circuit reaches a predeterminable level at a constant input power.

Abstract: A method for localizing an object moving in an unknown environment. The method includes providing k position marks at undetermined positions p1, p2, . . . , pk that are spaced apart from one another, where {p1, . . . , pk}?, where k is a natural number greater than or equal to 3, and repeatedly measuring the distances between the object and each of the position marks independently of one another at uncontrolled instants, such that distance values {r1, . . . , rn}? are present at instants {t1, . . . , tn}?. The method further includes determining a motion curve x(t)? according to x ? ( t ) = ? i = 1 n ? ? i ? k ? ( t , t i ) , where n represents a number of distance measurements used and each function k(t, ti) is a positively defined kernel function, and where {?1, . . . , ?n}? are coefficient vectors that are estimated using smoothness conditions based on a regularization term formed with the kernel functions.

Abstract: A method for detection of wind power installations using a radar installation is provided. The method involves transmitting a number N of predetermined sequences of modulated transmission pulses at a predetermined pulse repetition frequency successively in time and receiving and processing transmission pulses reflected by an object to determine whether the object is a wind power installation.

Abstract: A method for preforming a textile semi-finished product, including arranging a textile having at least two layers of fibers, interwoven fibers and/or fiber bundles that are at least in part arranged on top of each other. The method also includes; fixing-in-position of the fibers of the textile against each other and then cutting-to-size of the textile. The fixing-in-position of the textile involves irradiating via a laser beam in order for the melt-on binder of the textile to be melted on only in a localized fashion and not evaporated. The fixing-in-position occurs along a fix-in-position line, the cutting-to-size occurs along a cut-to-size line, and the fix-in-position line is located at a distance relative to the cut-to-size line that is so small that any fraying of the textile is reduced or suppressed altogether.