Abstract: A method for imaging a region of a moving blade of a wind turbine includes using a wider field-of-view (WFoV) camera to capture a plurality of WFoV images of at least part of the moving blade in a field-of-view (FoV) of the WFoV camera, determine a trigger time when an edge of the moving blade to calculate one or more NFoV image capture times when the edge of the moving blade, or a body of the moving blade, is, or will be, in the FoV of a NFoV camera, and using the NFoV camera to capture one or more NFoV images. The one or more NFoV images of the region of the moving blade may be analysed to identify any damage or defects in the moving blade without any need to interrupt the motion of the blades of the wind turbine.

Abstract: The invention concerns a method of providing a space extended reality service on earth, including: acquiring, by means of one or more acquisition systems/devices installed on a space platform, real-time data related to a surrounding space environment and/or to one or more astronauts in the space environment; generating, by means of a computer graphics processing device/system, based on the acquired real-time data and on synthetic data, a three-dimensional extended reality environment reproducing the space environment and one or more three-dimensional avatar(s) of the astronaut(s) reproducing movements and/or actions and/or facial expressions and/or voice of the astronaut(s), wherein the synthetic data digitally represent the space environment and/or the astronaut(s); and providing one or more users on earth with a space extended reality service based on the generated three-dimensional extended reality environment and avatar(s).

Abstract: A surface bio-contamination assay kit (1) comprising a disposable swab cartridge (2) comprising a swab (29); a sampler (3) designed to removably receive the cartridge (2) and to wipe the cartridge swab (29) on a surface to be collect a sampled, along a predetermined sampling path (4) designed to cover a predetermined surface area; and a bio-contamination meter (5) designed to removably receive the cartridge (2) after sampling and to measure bio-contamination of the collected sample on the cartridge (2).

Abstract: A fastening element for a sensor is disclosed, which fastening element can be fastened to a structure by means of a light-curing adhesive. The light-curing adhesive is cured within the cavities provided for receiving the light-curing adhesive by direct and/or indirect illumination. Furthermore, a sensor unit having a sensor and a fastening element, an arrangement having a sensor unit and a structure, and a method for providing an arrangement is disclosed.

Abstract: An optical flow odometer to determine the position of an object movable relatively to a surface is provided that includes a cluster of digital image sensors intended to be arranged on the movable object at respective reference positions and an electronic processing and control unit electrically connected with the digital image sensors and configured to: operate the digital image sensors in subsequent time instants during movement of the movable object so as to carry out a sequence of multiple digital image capture operations, in each of which the digital image sensors are operated to simultaneously capture respective digital images, and receive from the digital image sensors and process the digital images captured in the multiple digital image capture operations to compute either the positions of the individual digital image sensors or the position of the cluster of digital image sensors at one or more of the multiple digital image capture operations, and compute the position of the movable object at one or m

Abstract: The present invention concerns a method for performing SAR acquisitions, which comprises performing, in a time division fashion, SAR acquisitions of areas of a swath of earth's surface by means of a SAR system carried by an air or space platform; wherein performing SAR acquisitions in a time division fashion includes contemporaneously acquiring, in each pulse repetition interval, a plurality of areas of the swath that are separated in azimuth; and wherein the areas acquired in T successive pulse repetition intervals form an azimuth-continuous portion of said swath, T being an integer greater than one.

Abstract: An acoustic transducer (30), comprising: a support structure (36); an active assembly comprising a base plate (32) supported by the support structure (36) and a piezoelectric body (34) supported by the base plate (32); and a passive vibrator (38) supported by the support structure (36) and coupled via the support structure (36) to the active assembly (32, 34) so that vibration of the active assembly (32, 34) drives the passive vibrator (38). The active assembly (32, 34) and the passive vibrator (38) have the same resonant frequency.

Abstract: A connection unit comprising two female connectors configured to be connected to respective circuit branches of a fluidic line and a coupling element for coupling the connectors together and establish a fluidic connection between the circuit branches, wherein the connectors are provided with first, normally closed sealing elements to define a sealing termination of the circuit branches when the connectors are disconnected from each other; the coupling element includes a double-male connector separable from the female connectors and provided with a pair of shanks that can be coupled to the respective female connectors and a control element movable between a first position where the coupling element can be coupled to the connectors in a mechanical pre-coupling condition without fluidic connection between the female connectors and a second position where the shanks of the double-male connector engage the respective female connectors and establish a fluidic connection therebetween.

Abstract: A computer-implemented method for analyzing a network having a plurality of ADS-B base stations, including the following steps: a. receiving an ADS-B signal from a transmitter located in a first geographic area at a first base station and determining a first arrival time of the signal at the first base station; b. extracting position information from the ADS-B signal; c. determining an expected second arrival time of the ADS-B signal at a second base station using the extracted position information, the position of the first base station, the position of the second base station and the first arrival time; d. determining a quantity characterizing an error from a comparison of the expected second arrival time with an actual second arrival time; e. performing steps a-d for the same ADS-B signal from the same transmitter and further pairs of first and second base stations of the network; and f. tagging a base station if the error related to that base station is significant.

Abstract: A radar system is provided based on a core module comprising a radar transducer based on a long, flat platform, provided with coupling elements at each end, which may comprise ISO standard compatible corner fittings as used in freight containers Accessory modules may be connected to the core module by means of these coupling elements at each end. Accessory modules may provide power, communications, cooling or other support functions as required. The coupling achieved between the core module and accessory modules may be reinforced with side brackets, and may be sufficiently strong that the weight of the complete assembly may be supported by the core module, or by the accessory modules. The combined length of the core module and accessory modules may be selected to correspond essentially to the length of a standard freight container, and the length of the core module alone may be selected to correspond to the flat bed of a standard medium truck.

Abstract: A release system for the release of satellites from a launch vehicle is provided that includes: (i) a torsion bar, having a first end which is fixed by means of support means to a launch vehicle and is locked in rotation around a longitudinal axis of the torsion bar, and a second end which is connected by means of hinge means to the launch vehicle and is free to rotate around the longitudinal axis; (ii) at least one launch arm extending perpendicularly from the torsion bar and comprising (a) a torsion lever having a first end which is fixed to the torsion bar in an integral manner, and (b) a guide having a first end connected to a second end of the torsion lever, and a second free end; (iii) at least one slider which is fixed in an integral manner to a satellite to be launched and arranged to engage the guide in a sliding manner; and (iv) and a limit stop element designed to act upon the torsion lever to stop the rotation of the launch arm around the longitudinal axis.

Abstract: A fully-reconfigurable coaxial filter is provided that includes coaxial resonators mounted such that both opposite ends are coupleable to corresponding tuners, first tuners made of dielectric material, each first tuner being slidably mounted at a first end of a corresponding coaxial resonator to be movable relative to the first end to form a dielectric of a capacitive load, and second tuners made of dielectric material, each second tuner being slidably mounted at a second end of a corresponding coaxial resonator to be movable relative to the second end to form a dielectric of a capacitive load associated with the second end of the corresponding coaxial resonator. The first and second tuners are movable relative to the corresponding coaxial resonator so as to tune the capacitive loads associated with the opposite ends of the coaxial resonator and, resultingly, a resonant frequency and mutual coupling coefficient of the coaxial resonator.

Abstract: A method for data transmission inside a rail-bound traffic system has of a plurality of field elements, in which the data transmission takes place via a flexible wireless transmission path between a sender field element and a control unit along available field elements. A data transmission system is for application of the method and a rail-bound traffic system having such a data transmission system. Furthermore, there is use of communication units on field elements of a rail-bound traffic system to form the data transmission system.

Abstract: An aircraft based satellite communication (SATCOM) terminal includes a broadband aperture configured to communicate through non-geostationary orbit (NGSO) satellites for broadband communications, a management aperture configured to receive NGSO satellite management information from a geostationary orbit (GSO) satellite, and at least one processor that performs operations. The operations receive the NGSO satellite management information from the GSO satellite, where the NGSO satellite management information indicates positions and associated time of a set of the NGSO satellites. The operations acquire a second communication link with a second NGSO satellite among the set using the NGSO satellite management information during handoff switching from using a first communication link that was previously acquired with a first NGSO satellite to using the second communication link being acquired with the second NGSO satellite.

Abstract: An on-orbit servicing spacecraft includes an engagement system to engage a space vehicle or object to be serviced or tugged, so as to form a space system, and an electronic reaction control system to cause the spacecraft to rotate about roll, yaw, and pitch axes to control attitude and displacement along given trajectories to cause the spacecraft to carry out given maneuvers.

Abstract: An aircraft-based inflight entertainment (IFE) security processing system is configured to receive log event streams from components of an IFE system and/or connected to the IFE system. The IFE security processing system aggregates content of the log event streams based on a level of aggregation set by aggregation commands received from a ground-based cybersecurity operations center to generate an aggregated log file, and communicates the aggregated log file through a satellite communication pathway to the ground-based cybersecurity operations center. Related ground-based cybersecurity operations centers are disclosed. Corresponding operations by cybersecurity operations centers are disclosed.

Abstract: An electron gun includes: a cathode, which has a cathode holder and a cathode body; and a Wehnelt cylinder. The cathode holder receives the cathode body and the Wehnelt cylinder is suitable for bundling free electrons, which can escape from the cathode body toward the Wehnelt cylinder, to form an electron beam. The Wehnelt cylinder is interlockingly arranged, at least in some parts along a first inner surface facing the cathode holder, on an outer surface of the cathode holder and at least partly extends around the cathode holder.

Abstract: A supporting frame for aerospace applications comprises a plurality of rods, which are arranged along two bases substantially parallel and opposite each other, and along two sides, which are substantially parallel and opposite to each other and are coupled to each other via the two bases; the rods are coupled to each other in a mutually rotating manner by nodes so as to be able to configure the supporting frame between a deployed operating condition and a compacted operating condition; the nodes are spaced apart from one another in the deployed operating condition and are each hinged to at least two of the rods; in the compacted operating condition, each of the nodes is placed side by side with two adjacent nodes so as to form, together, two supporting members arranged at opposite longitudinal ends of the supporting frame and each being ring-shaped.

Abstract: Optical unit for a projective optical metrological system, which receives a light signal coming from a light constellation comprising a number of light sources; the optical unit includes: an optoelectronic image acquisition system and a first and a second optical circuit, which receive the light signal and are traversed by a first and a second optical beam, respectively. The first and the second optical circuits direct, respectively, at least a first part of the first optical beam and at least a first part of the second optical beam on the optoelectronic image acquisition system, so as to cause the simultaneous formation of two different images of the constellation in the optoelectronic image acquisition system. The optical unit further includes an electronic processing unit coupled to the optoelectronic image acquisition system, which determines a number of quantities indicative of the position and/or attitude of the light constellation with respect to the optical unit, based on the two images.

Abstract: An arrangement of conduction-cooled travelling wave tubes includes multiple travelling wave tubes mounted on a common base, wherein the travelling wave tubes are thermally connected to the base so that during operation of the travelling wave tubes the base forms a heat sink for the travelling wave tubes, and the base is designed to accommodate multiple travelling wave tubes in terms of their dimensions along their beam axes so as to increase the number of travelling wave tubes per surface area unit of the base.