Abstract: The disclosure herein relates to a receiver for use in a user satellite, located among other things partly or wholly on orbits remote from Earth, for example. The receiver comprises a receiving unit and a processing unit. The receiving unit is configured to receive signals transmitted by navigation satellites of one or more global navigation satellite systems (GNSS). The processing unit is configured to determine measurements based on the data contained in the signals received. The processing unit is further configured to carry out a calculation of position, velocity and time (PVT) based on batch processing of the measurements. The disclosure herein further relates to a method and a user satellite.

Abstract: A method and system for determining the weight and at least a first coordinate of the center of gravity of a structure such as a vehicle, in particular, an aircraft.

Abstract: Apparatus for use in a communications satellite can include a first mixer arranged to mix and down-convert a received signal in an input frequency range with a first local oscillator LO signal so that a signal within the received signal at a center frequency of a first frequency range is converted to an intermediate frequency IF, a bandpass filter having a passband with a center frequency at the IF arranged to filter the mixed signal such that the filter bandwidth defines the width of the first frequency range, and a second mixer arranged to mix the filtered IF signal with a second LO signal to up-convert the IF signal to an output frequency range. One of the first and second LO signals is a mixed LO signal obtained by mixing the other one with a third LO signal, and the output frequency range is different from the input frequency range.

Abstract: An assembly for arrangement to the surface of an aerodynamic profile comprises an array of actuators, which are designed as piezo actuators and plasma actuators.

Abstract: A method for categorizing a fracture surface of a component. A digital image of the fracture surface is generated. The digital image or one or more segments of the digital image is/are analyzed, wherein a category of a fracture pattern is assigned to one or more regions of the digital image or of one or more segments based on detection and statistical evaluation of spatial distribution of the smallest homogeneous image units (pixels) or image elements, and, provided that multiple regions and/or multiple segments of the digital image were analyzed, information about the regions and/or details of the digital image and categories of fracture patterns determined and assigned to them are linked to each other, and a category is assigned to the fracture surface based on this link. The method permits automatic, self-learning-categorization of fracture surfaces, for example for series tests carried out for joining technologies.

Abstract: A measurement arrangement for measuring process and structure parameters of a fiber composite material along a measuring path includes a fiber material, a matrix material which surrounds the fiber material at least in regions, and an electrical sensor element that includes at least two signal transmission lines twisted together and aligned along the measuring path in and/or at the fiber material such that the signal transmission lines are surrounded at least in portions by the matrix material, wherein the electrical sensor element is configured to measure the process and structure parameters on the basis of the behavior of electromagnetic signals that are fed into the signal transmission lines.

Abstract: A laying unit for producing a fiber composite component includes a drive device which is formed for magnetic cooperation with a running face, which provides a magnetic field and/or is ferromagnetic, to advance the laying unit on the running face. A device for producing a fiber composite component including a laying unit of this type and a method for producing a fiber composite component including a device of this type are disclosed.

Abstract: A method for coupling an energy supplying device to an energy consuming device in space and to a system including an energy supplying device, an energy consuming device and a mobile assembly unit residing in space. The energy supplying device is operable in space and includes solar panel units to convert received light into electrical energy, first coupling members to couple the solar panel units with each other, and a second coupling member to electrically couple the energy supplying device with the energy consuming device. The energy supplying device is configured to supply electrical energy to the energy consuming device in space. A configuration of the solar panel units is changeable in space according to an operational requirement of the energy consuming device.

Abstract: A satellite payload (20) including a reflector (22), a network (23) of sources (24) and a beam forming network connected to said sources in order to form beams for carrying signals in a first frequency band, called “band B1”, and in a second frequency band, called “band B2”. The reflector comprises two reflective surfaces (22a, 22b) positioned one behind the other in relation to the network of sources and having different curvatures so that each reflective surface generates an image of the network of sources with a different magnification factor. The reflective surface closest to the network of sources is transparent for all the signals carried on the band B2 and is adapted to reflect signals carried in the band B1. The other reflective surface is adapted to reflect signals carried in the band B2.

Abstract: An energy supply device for reliably supplying energy to electrical loads, provides the energy supply by constant voltage sources. The number of constant voltage sources corresponds to the number of electrical loads. The energy supply device has a deactivatable balancing network. In this case, only the compensating currents are conducted via the balancing network, while the energy supply is provided via a direct electrical connection between the constant voltage source and the load. If a fault occurs, the balancing network can be deactivated. Faults in one branch thus do not affect the level of reliability of the energy supply in the remaining branches. After a faulty component has been located and isolated, the sources that are still intact, and the intact loads, can be brought back into operation by suitably configuring the balancing network. The availability of the drive system can thus be increased.

Abstract: A transmitter for transmitting a signal is provided, in which the transmitter includes a power amplifier and a driver amplifier, an output of the driver amplifier being connected to an input of the power amplifier via a first load modulation device operable to match the impedance of the driver amplifier output with impedance of the power amplifier input. A second load modulation device can be connected to the output of the power amplifier and operable to match the impedance of the power amplifier output with input impedance of a further device. Envelope tracking can be applied to the power amplifier and the driving amplifier.

Abstract: A method for active flow control of a fluid flow that flows along a flow surface includes generating a first local velocity field in the fluid flow by introducing a first vortex structure into the fluid flow by a first flow control actuator coupled to a first actuation site of the flow surface, and introducing a second vortex structure into the first local velocity field by a second flow control actuator coupled to a second actuation site of the flow surface located downstream of the first actuation site, when a head vortex of the first vortex structure has propagated with the fluid flow downstream the second actuation site.

Abstract: Simulation of a complex system involves representing the complex system in a plurality of simulation building blocks, each simulation building block is associated with a subsystem of the complex system. Each simulation building block includes at least one client-side simulation component and a server-side simulation component. During the simulation a user interaction is detected by a client-side simulation component, the complex system is simulated in server-side simulation components on the basis of the user interaction. Simulation data for the subsystem is generated by the server-side simulation components, and the subsystem is represented by the corresponding client-side components based on the simulation data.

Abstract: The disclosure herein relates to a measuring system for determining damage to components including at least one fiber-reinforced plastics material, comprising sensors that can be or are arranged on a component to be mutually spaced, the sensors distributed over a curved surface of the component in the use position. In order provide a measuring system by which it is possible to obtain fiber-reinforced plastics components economically and with reasonable outlay, and by which process parameters and/or state variables can be reliably obtained during production and operation of the component, it is proposed to provide the component with a substrate that is different from the component and on which the sensors can be or are arranged, the substrate being flexible, and for the sensors arranged on the flexible substrate to form a measuring device.

Abstract: A microelectronic module for cleaning a surface is described. The microelectronic module comprises at least one voltage converter for converting a provided first voltage into a higher, lower, or identical second voltage. The module also comprises at least one actuator. The actuator comprises at least one generator for generating an ionic current, an electrical plasma, harmonic components and/or an electrostatic field from the second voltage which is provided by the voltage converter. At least the voltage converter and the actuator are disposed on a thin-film, planar substrate. At least most of at least one object adhering to the surface is removed by the actuator.

Abstract: A method suitable for manufacturing complex and stable objects of a wide range of sizes. The method involves producing an object structure by a generative production method and/or by an injection molding method, and producing a fiber-reinforced resin layer in at least one sub-region of the object structure.

Abstract: The invention relates to a device for the infiltration of fibrous material with resin for the production of a fiber composite component, comprising a mold tool with a cavity enclosed by at least two tool parts, wherein the mold tool is designed for a relative movement of the at least two tool parts, in such a manner that space can be provided inside the cavity, in a first tool position, to hold the fibrous material, and additional space can be provided to accommodate resin, and the size of the cavity can then be reduced by a movement of the mold tool from the first tool position into a second tool position.

Abstract: A system for determining the position of a transmitting unit has an arrangement of at least four transmitting units. A first transmitting unit is designed to emit a first transmission signal to each of the three remaining units, each of which is designed to receive the first transmission signal and, thereafter, to return a first response signal to the first unit. The three remaining units each have stored position data relating to desired positions of the arrangement. The first unit is designed to: determine its relative position data relative to the three remaining units based on the returned first response signals, obtain the stored position data relating to the desired positions from the three remaining units, and assign the determined relative position data to the obtained position data relating to a single desired position to determine the position of the first unit within the arrangement based on the assignment.

Abstract: A space system including a layered structure on an outer surface of the space system, the layered structure including a conductive veil or nonwoven comprising conductive fibers, and a non-conductive sheet arranged on a surface of the conductive veil or nonwoven.