Abstract: In an IR jamming system for defense against missiles with IR-sensitive homing heads, one or more jamming beams are generated, whose diameter is less than that of the optical aperture of the IR-sensitive homing head of the missile. The optical aperture of the IR-sensitive homing head of the missile is at least partially illuminated by the jamming beam or beams.

Abstract: A method and a device are provided for bonding a dry fiber strip to a dry fiber strand in continuous, uninterrupted operation. A bonding agent, activatable by supplying heat, is provided on the fiber strip and the fiber strand, which has at least one flat mantle surface. The fiber strip and the fiber strand are unwound from respective supply rolls, and the flat mantle surface of the fiber strand is positioned on the fiber strip during the unwinding procedure. Heat is supplied during the unwinding procedure to cause activation of the binder and gluing of the fiber strip and the fiber strand.

Abstract: An aircraft wing including a wing box and a nose flap moveably connected to the wing box by first and second folding hinges. A first transverse link is pivotally connected to first portions of the first and second folding hinges. A second transverse link is pivotally connected to second portions of the first and second folding hinges. An actuator is connected diagonally between the first and second transverse links for moving the nose flap between a retracted position and an extended position. The instant abstract is neither intended to define the invention disclosed in the specification nor intended to limit the scope of the invention in any way.

Abstract: An assembly is provided for reducing the noise that is generated in the heating gas zone by turbofan engines. The assembly consists of an acoustically absorbent cladding in the heating gas flow channel of the turbofan engine. The cladding includes a plurality of neighboring cavities, into each of which four horns extends. The mouths of the horns are fixed to a perforated cover sheet. The cover sheet forms one wall of the heating gas flow channel.

Abstract: In an analog signal compression method with digital compression and digital expansion of linear based or sine-based linear signals, a signal coordination point is determined in a bi-adaptive scaleable mV/step and a time/step structured plane. To accomplish this, the linear or sine-based input signal is digitized, the breaks of the digitized linear or sine-based signal are detected, and the time difference and the amplitude difference of two successive breaks of the linear or sine-based signal are determined. This permits time differences and amplitude differences of successive breaks to be value coded as a data word on the basis of adaptive scaleable time-per-step tables and voltage-per-step tables so that the time-per-step tables and the voltage-per-step tables are selected depending on the absolute value of the determined time difference and amplitude difference, thus producing compressed data. An associated expansion method for reconstructing the original analog signal is also disclosed.

Abstract: In the case of a method of detecting wind velocities by means of a Doppler-lidar system (10), a laser beam of a defined frequency generated by means of a laser (11) is emitted by a transmitting device (12) toward a space area and the light backscattered from the space area is received by means of a receiving telescope (13). For determining a Doppler shift, an interferogram is generated by means of an interferometer (16), the intensity distribution of the interferogram being directly measured by means of a photodetector (17). The measured intensity distribution is compared with one or more reference patterns which had previously been determined for defined parameters and are filed in a memory device (18a). From the comparison, the Doppler shift is determined as a measurement for the wind velocity. The Doppler-lidar system (10) comprises an analyzing unit (18a, 18b) for implementing the method, having a comparison unit (18b) for the comparison of reference patterns with the measured interferogram.

Abstract: Navigation signals emitted by a navigation transmitter (46), in a first signal path (41), have a time reference generated and, based on this time reference, navigation signals are generated which are subsequently emitted by way of a transmitting device (39, 40). In the event of interferences in the first signal path (41), a switch-over takes place to a second signal path (45) parallel to the first signal path (41). The navigation transmitter (46) receives time reference signals and/or navigation signals, and the received signals are guided by way of the second signal path (45) to the transmitting device (39, 40) and emitted.

Abstract: A piezoelectric expansion actuator for d33 piezoelements, which allows vibrations in structures to be suppressed. An expansion actuator (1) includes a piezoelectric stack (2), which consists of d33 piezoelectric elements and is arranged between output elements (4), which are attached to the surface of the structure (7). The invention applies to a piezoelectric extension actuator, which is used to control vibrations in structures. Alternatively, in order to damp vibrations between the main gearbox of a helicopter rotor and the cellular structure of the cockpit, a power application point of the output element (18, 19, 180, 190; 35, 36) is arranged at a distance from the corresponding end plate of the piezoelectric stack (22, 220; 31, 32, 33) in the axial direction (X).

Abstract: The invention relates to a device for twisting and clamping a second flap moveable about a rotational axis with respect to a first flap. A device includes a twisting device arranged on the first flap including a drivable shaft rotatable about the rotational axis and a catch connected to the second flap. The device also includes a clamping device including a clamping sleeve arranged along the rotational axis.

Abstract: Method provided for implementation in a data processing device for monitoring a permissible integrity of a measured variable of a dynamic system with the steps: Determination of at least one measurement series with respectively one number (n) of measurements (zk) by means of at least one sensor device with respectively one predetermined measuring accuracy (?zk) and a predetermined actual sensor integrity ({1?pk}) related thereto, determination of a number (m) of measuring errors as a function of the actual sensor integrities ({1?pk}), as a function of the number (n) of measurements and as a function of a minimum integrity ({1?p0}), assignment of the determined accuracy range to an accuracy measurement, comparison of the determined accuracy measurement with a threshold value, and issuing a warning as soon as a desired value has been reached, fallen below or exceeded.

Abstract: In a method of generating a pulse-shaped transmitted output signal having a definable pulse shape in a multistage amplifier arrangement, the course of the “pulse top” (upper edge) of the transmitted signal is determined by control signals at the amplifier stages. The control signals of the amplifier stages are definable such that the control signal of an amplifier stage in each case comprises a number of pulse sections of a predefinable frame pulse. The tops of the pulse sections each having a predefinable constant gradient. A predistortion is introduced into the control signals in this manner, having a course which offsets distortion of the pulse top which results when no predistortion is used.

Abstract: A coating material includes: (A) a compound of formula (I) Ra4-nSiXan, ??(I) wherein: Xa is a hydrolysable radical; Ra is a non-hydrolysable radical; n is 2, 3 or 4; (B) a compound of formula (II) wherein: Xb is a hydrolysable radical; Rb is a non-hydrolysable radical without an epoxide function, an acryloxy function, a methacryloxy function and an isocyanate function; Yb is a non-hydrolysable radical with a crosslinkable function; p is 2 or 3; q is 1 or 2; the sum of p and q is less than or equal to 4; (C) a crosslinking agent; (D) an organozirconium, organotitanium or organoaluminum compound containing hydrolysable organic radicals; (E) a hydrolysis catalyst; (F) crosslinkable prepolymers of epoxy and epoxysiloxane resins, (G) optional corrosion inhibitors; (H) optional compounds for reducing the reactivity of component (D); wherein n and the sum of p+q are not at the same time each 4.

Abstract: An arrangement for beam forming and control of a transmitter radiating in the RF range comprises an input for feeding the RF transmitting signal RFin, a feeding network electrically connected with the input, a plurality of radiator elements, a plurality of phase shifters for receiving signals from the feeding network and for causing phase displacements for the signals before the transmission to the radiator elements, and a controller for controlling the phase displacement caused by the phase shifters. A circuit is assigned to the input of the transmitting antenna for converting the momentary phase of the transmitting signal to a digital word of a definable word length and for feeding the digital momentary phase to the feeding network. Each phase shifter comprises an adder for linking the momentary phase fed by the feeding network with a definable digital phase value generated and fed by the controller, and a circuit for converting the digital output value of the adder to an analog signal.

Abstract: A system is for recognizing obstructions and monitoring movements on or above an airport area (1) with sensors (2, 3, 4). A sensor (2) is a radar device having a plurality of antenna elements (12, 14), which are affixed to a curved surface (15) of an antenna carrier (2a) and are turned on, one after the other, in terms of time. Thus a first part of the antenna elements (14) is disposed on a first circular line (13) on the surface of the antenna carrier (2a), and a second part of the antenna elements (12) is disposed on a circular line (15) perpendicular to the first circular line (13). Therefore the data of the radar device (2) are evaluated in a first ROSAR process, to image the situation on the ground, and in a second ROSAR process, to image the heights of the flying objects to be observed.

Abstract: In a process and apparatus for determining the state of a body, a number n of measured values {right arrow over (x)}i of a state of the body with i=1, . . . , n are measured and recorded, the measured values {right arrow over (x)}i representing points in the k-dimensional space. The measured values {right arrow over (x)}i of the state are then fed to a Kalman filter for estimating the state of the body. For each number n of measured values {right arrow over (x)}i of a state of the body, a first quantity {right arrow over (m)}n and a second quantity rn are derived, and are fed to the Kalman filter, the quantity {right arrow over (m)}n being the center vector, and the quantity rn being the radius of a k-dimensional sphere Bn within which all points {right arrow over (x)}i are situated.

Abstract: In a process for depositing large dry textile fiber webs on a component shape, a rolled up textile fiber web is deposited fully automatically, by means of robots. A robot-carrier cloth gripper grips the end of the textile fiber web to be deposited, and places it on the component shape. The web is then unwound from the roll by a robot-carried cloth unwinding stand, and is deposited on the component shape. During the depositing, the textile fiber web is draped by means of robot-carried heated sliding metal sheets or robot-carried movably disposed heated rollers. The depositing operation is continuously monitored and automatically readjusted to maintain a constant depositing rate. Alignment of the textile fiber web relative to the component shape is also monitored continuously by optical devices, and is readjusted as required.

Abstract: A housing has an expansion tent connectable thereto. A bag-shaped cover is present, and has an opening permanently connected to the housing. The cover forms the interior surface of the erected expansion tent, and is suitable for hermetically sealing off the interior of the housing and the expansion tent with respect to the environment. Sealing can be provided during all operating conditions, while erecting the tent, and while dismantling the tent.

Abstract: A circuit for broadband amplification is provided. The circuit includes an input HF_IN and an output HF_OUT, a first 90° hybrid coupler being connected to the input HF_IN of the circuit and a second 90° hybrid coupler being connected to the output HF_OUT of the circuit, and two amplifier stages being connected in parallel between the first and the second 90° hybrid coupler, the 90° hybrid couplers being hybrid couplers having an operating range of 1/n octaves between a lower frequency value and an upper frequency value, n?N\{0}, i.e., n is an element of the natural positive whole numbers in such a way that the upper frequency value is greater than the lower frequency range and simultaneously less than two times the value of the lower frequency range, and the amplifier stages being based on transistors having a III-nitride, or SiC, or diamond basis.

Abstract: A low-altitude flight guidance system for an aircraft including a warning generator that generates a warning based upon a predicted position. The system further including a first sensor system having a terrain database and a calculation module that determines a current position of the aircraft with respect to terrain stored in the terrain database and that determines a reference altitude hDB of the terrain at the current position. The system further includes a second sensor system and a module that determines a predetermined flight altitude difference ?hF at the predicted position and terrain data in a region U of the predicted position. Moreover, the system includes an altitude prediction module that predicts an altitude and forwards the predicted altitude to the warning generator. The warning is based upon the aircraft reaching, approaching, or exceeding a warning altitude limit, and the altitude prediction module determination for the predicted position is based upon a prediction set point.

Abstract: In a method and apparatus for defense against missiles that have explosive substances and piezoelectric detonators, with the detonator of the missile is excited by ultrasonic radiation, causing it to oscillate and thus be triggered in flight.