Abstract: Process for the autonomous positional control of guided missiles, which are to be launched from a carrier plane, but without the cooperation thereof, wherein data on the instantaneous position of the guided missile, as well as flight and target data are fed into a computer of the guided missile already on the ground. The initial data fed into the computer are continually updated with changing values from the inertial navigation and additional navigational aids and are further calculated to achieve autonomous flight guidance and self-guiding of the missile. An uninterruptible power supply of the guided missile is maintained beginning from the moment of data reception.

Abstract: A joint is provided for the unfolding and locking of space elements, such as solar generator panels. On one joint half, a detent lever is swivellably connected having a clamping nose as well as a finger as the guiding element. During the unfolding operation, the finger slides on a guiding contour of the other joint half. Shortly before the fully unfolded condition is reached, the finger engages in a depression, and the clamping nose runs up onto a cam and clamps down on the latter under the effect of the spring tension directed to the common axis of rotation. A movable stop element, e.g. universal ball joint, simultaneously presses against a stop surface so that both joint halves are braced with respect to one another. An arrangement of high stiffness which is as free from play as possible results.

Abstract: An inertial sensor for measuring changes in rotational motion of a sensor support, having a flywheel rotationally movable in the plane of rotational motion relative to the sensor support and a measured value sensor picking up the rotational state of the flywheel relative to the sensor support. A torque coupler is provided between the sensor support and flywheel. The torque coupler has a torque curve that is a linear function of the relative angular velocity between the flywheel and the sensor support. The measured value sensor is designed as an angular position detector that taps off the rotational angle of the flywheel relative to the sensor support.

Abstract: A cell structure for electrolyzer units and fuel cells, comprising an electrolyte-permeable diaphragm, one metallic, electrolyte-permeable electrode respectively on either side of the diaphragm, an electrically conductive bipolar cell partition respectively which bounds the cell, one electrically conductive structure respectively between the electrode and the cell partition which acts as an elastic spacer and current supply, and a frame construction which encloses the cell on the circumference side. The diaphragm is constructed as a flat plate, with layer-type electrodes resting directly on it and integrally connected with it. The cell partitions are constructed of sheet metal, if necessary, with spacers. The spaces between the electrodes and the cell partitions are at least partially filled with lamellar structures which are axially and perpendicularly fluid-permeable and rest against the electrodes.

Abstract: An optical analog to digital converter for microwave signals in which the input to a Mach-Zehnder modulator/interferometer is split into two branches which are provided with respective laser carrier signals having a difference frequency equal to a desired conversion frequency. An input microwave signal is then used to modulate the carrier signal present in one of the input branches to the interferometer, and the resulting output signal is detected and compared with a predetermined threshold value to generate a binary 1 or 0 output. In a preferred embodiment, a plurality of such interferometers are arranged in a parallel configuration and the modulation of the respective carrier signals is scaled by a factor of two.

Abstract: In a rotating antenna synthetic aperture radar, a method and apparatus for unfocussed signal processing for the correlation of the received signals by means of the reference functions. In unfocussed signal processing, only the main portion of the receiving signal S.sub.E is used, in which the phase shift is smaller than or equal to 90.degree. for the go-and return-path of the signal. A simplified window function is used as a reference function whose width also corresponds to the main portion of the received signal. Preferably, the in-phase and quadrature component (I.sub.r, Q.sub.r) of the window function r are selected to be identical.

Abstract: A rotating antenna synthetic aperture radar apparatus having a module in the processor circuit in which are stored image definition values for reducing image errors. The module acts upon process circuits to subdivide the distance range illuminated by the antenna into individual distance intervals and to determine the reference functions in these distance intervals.

Abstract: A sealing arrangement for the sealing-off of metallic cylindrical bodies is disclosed, particularly for shafts in cryogenic valves which are surrounded by an essentially ring-shaped sealing device which cannot be glued to metal. The sealing device is surrounded by a ring which is arranged concentrically with respect to the shaft, consists of a metal alloy with shape memory characteristics and with a one-way characteristic and the interior shape of which is adapted to the exterior shape of the sealing device and which contracts when the transition temperature is exceeded.

Abstract: A linear drive is disclosed comprising a single-acting pneumatic piston cylinder unit, at least one spring which acts against the pneumatic force and loads the piston rod in the direction of one end position, and one form-locking pneumatic locking mechanism respectively for each of the two end positions of the piston rod.

Abstract: A method of initiating the detonation of a warhead of a friendly guided missile and an arrangement for implementing the method. If a friendly guided missile or flying body, during its target approach phase, approaches an enemy missile or flying body, the active radar target seeker of the friendly guided missile is switched to perform a fine range discrimination, and an additional modulated signal is transmitted by the transmit/receive antenna of the active radar target seeker of the friendly guided missile, with this additional signal being received again after reflection at the enemy missile. With the aid of the received signal, the evaluation and control unit of the active radar target seeker generates an image of the enemy missile and determines the position of the warhead within the enemy missile. The warhead of the friendly guided missile is then guided into the vicinity of the warhead of the enemy missile and caused to explode.

Abstract: Buildings, vehicles, and persons are protected by means of a laser monitoring device consisting of a laser transmitter and receiver and an associated evaluation unit. A platform with a variably adjustable rotational speed is located in an elevated unobstructed location above the property to be protected, on which platform the area-monitoring laser device is mounted. Also a position and turn gyroscope is connected with the platform to accommodate mobile operations.

Abstract: A processor based method of measuring and regulating the pressure in the inflatable sealing cuff of a tracheal tube introduced into the trachea of a patient, for generating a constant contact pressure of the sealing cuff against the trachea for the purpose of producing gas-tight respiration for the patient and avoiding the aspiration of fluids from the patient's oral cavity into his breathing passages. The processor receives the actual value of the pressure existing in the sealing cuff as measured by a pressure sensor, detects large and steep increases in pressure in the sealing cuff that deviate from a nominal pressure in the sealing cuff, and interprets the pressure increases as predicting a subsequent widening of the trachea which will result in a decrease of the pressure in the sealing cuff.

Abstract: A jet engine having at least one combustion chamber with a propelling nozzle connected behind it, achieves in a constructionally simple manner and with a high propulsion effect a cross-sectional configuration of a hot gas flow duct bounded by the propelling nozzle that is highly variable with respect to the nozzle throat area as well as to the outlet area. The propelling nozzle contains a divergent lengthening part which is axially movable for the outlet-side expansion of the hot-gas flow duct. In the moved-out position, the lengthening part connects essentially in the corresponding shape to the divergent outlet end of the nozzle outer wall fixed to the engine and, in the moved-in condition, forms together with it an air outlet duct which encloses the fixed nozzle wall end in a ring-shaped manner and whose cross-section can be regulated.

Abstract: An imaging system for a missile rotating about a principal axis (A) has an imaging lens arrangement 6 and a detector arrangement 8 situated in the focal plane of the imaging lens arrangement for the generating of electric image signals which are processed while the respective rotating position of the missile is taken into account to achieve a high image definition in a manner that is very simple technically as well as with respect to signal processing techniques, the detector arrangement and the imaging lens arrangement with their optical axis are arranged to carry out the same motion as the missile while rotating about the principal axis of the missile, and the detector arrangement comprises one or several detector row(s) which extend from the image field edge of the imaging lens arrangement toward the missile axis.

Abstract: An arrangement is provided for the adjusting of a mounting part on a carrier in a statically determined position which can be adjusted in a rotatory and translatory manner in three axes with respect to the carrier. The arrangement comprises at least three adjusting units which are arranged in an offset manner with respect to one another between the carrier and the mounted part, each of which comprises two connecting parts which can be translatorily adjusted relative to one another in two axes and are constructed to be rotatorily in three axes as well as translatorily in one axis freely movable sloped to the adjusting plane of the connecting parts.

Abstract: The present invention relates to a pulse Doppler radar wherein the phase position of the reflected signals is evaluated as the most important component in addition to the amplitude. Thus a very good resolution results in the range direction and in the velocity direction for the detection of multiple target situations. The invention can be employed particularly for a so-called HPRF radar.

Abstract: A bearing arrangement for a bearing seat for a radial bearing adapted to be disposed in an acceleration-proof gyroscope, on which a brief acceleration produced forces act perpendicularly to a rotational axis of the gyroscope. The bearing seat includes a cylindrical half shell, with a longitudinal center axis of the cylinder of the half shell coinciding with a rotational axis of the radial bearing, and with an open side of the half shell facing in a direction in which the acceleration forces act on the radial bearing. An elastic element urges or biases a support ring into the half shell with a preset force, with the elastic element having a spring characteristic such that the support ring and the radial bearing may be lifted out of the half shell when a predetermined acceleration is exceeded.

Abstract: A combined projectile is formed of a leading projectile part and a trailing projectile part disposed in coaxial relation and spaced apart by a defined constructional distance. The trailing projectile part can be a weight projectile. Further, the trailing projectile may include a device for retarding detonation relative to the detonation of the leading projectile part. The leading projectile part forms an opening in a target and permits the trailing projectile part to move unimpeded through the opening.

Abstract: The invention discloses a method of measuring the rough frequency deviation in digital communication transmissions with echo propagation, particularly in the short-wave domain. A repeatedly transmitted PN sequence serves as the preamble of a data block. This PN sequence is compressed at the receiving end in matched filters provided in each one of a plurality of simultaneous, frequency offset Doppler channels. The Doppler channel having the greatest amplitude in the quadrature signal is selected for a determination of the rough frequency deviation. To detect a pattern in the preamble, the quadrature signals are examined for similarities by an amplitude comparison or in a cross-correlation process.

Abstract: An arrangement for controlling solar heating of passenger cars comprises a covering material which is glued onto parts which are subjected directly to the radiation of the sun in the vehicle interior, and a switching device. The covering layer is composed of a foil with a controllable capacity to transmit light, a reflecting layer and a carrier material. When the engine is switched off during parking, the foil will transmit light, whereby the incident light is reflected on the reflecting layer. In the driving operation of the passenger car, the foil will be dull, impervious to light and absorbs the incident light.