Abstract: An antenna system that includes a plurality of lens sets. Each lens set includes a lens and at least one feed element. At least one feed element is aligned with the lens and configured to direct a signal through the lens at a desired direction.

Abstract: Provided are a method for maintaining Walker constellation formation and a terminal device. The method comprises: determining a first offset amount of each satellite within a simulation time period according to parameters of a Walker constellation; performing first offset on each satellite according to the first offset amount to obtain a Walker constellation after the first offset; determining a second offset amount of each satellite within the simulation time period according to parameters of the Walker constellation after the first offset; and superimposing the first offset amount and the second offset amount, and performing second offset on each satellite so as to maintain the formation of the Walker constellation.

Abstract: A basic logic element includes: a calculation unit configured to perform calculation processing; a self-diagnosis unit configured to self-diagnose whether or not there is an abnormality in a result of the calculation output from the basic logic element; a management unit configured to determine whether or not to retain authority to output the result of the calculation based on a result of the diagnosis performed by the self-diagnosis unit and output a result of the determination as an authority signal; and an output control unit configured to control whether or not to output the result of the calculation performed by the calculation unit based on whether or not the authority to output data is retained by the management unit.

Abstract: A navigation processing system includes at least one processor configured to execute operational instructions that cause the at least one processor to perform operations that include generating navigation data. A data stream is generated based on the navigation data and a data channel spreading sequence. A pilot stream is generated based on a pilot channel spreading sequence. A navigation signal is generated based on applying a bandwidth-efficient modulation scheme to the data stream and the pilot stream. The navigation is signal is broadcast via a navigation signal transmitter for receipt by at least one client device.

Abstract: In one embodiment, a waveguide assembly includes a first waveguide portion having a first end, a second end, and a first waveguide channel extending between the first end and the second end, and a second waveguide portion having a first end, a second end, and a second waveguide channel extending between the first end and the second end, wherein the first waveguide portion and the second waveguide portion are configured to connect such that the first waveguide channel and the second waveguide channel form a combined channel, wherein the combined channel includes a gap interface between the first waveguide channel and the second waveguide channel.

Abstract: Simulation sighting binoculars include a camera, a screen, a pair of lenses which are arranged to face the screen, and electronic circuitry which is configured to: obtain a video frame from the camera; transmit, to a simulation platform, geolocation information and orientation information for the camera; receive simulation graphical elements and spatial positioning information for corresponding virtual objects; carry out a two-dimensional rendering of the virtual objects, in order to display them in a projection window E2; superimpose the two-dimensional rendering of the virtual objects in the projection window E2 and the video frame in a projection window E3; obtain a mixed-reality stereoscopic image using a pair of virtual cameras reproducing binocular vision which is adapted to the pair of lenses; and carry out, on the screen, a right-eye and left-eye display of the obtained mixed-reality stereoscopic image.

Abstract: A method of soft-decision decoding including training a machine learning agent with communication signal training data; providing to the trained machine learning agent a signal that has been received via a communications channel; operating the machine learning agent to determine respective probabilities that the received signal corresponds to each of a plurality of symbols; and, based on the determined probabilities, performing soft decision decoding on the received signal.

Abstract: In one embodiment of the present disclosure, a pan/tilt assembly for an antenna apparatus having a housing enclosing antenna components and a leg extending from the housing includes a first actuator for rotating a first gear, a second actuator for rotating a second gear, a third gear coupled to the leg and engaged by the first and second gears, and a tee having a first portion substantially transverse to a second portion, wherein the first portion has a first end rotatably received within the first gear and a second end rotatably received within the second gear, and wherein the second portion is rotatably received within the third gear.

Abstract: A system and method may detect cheating in a computer game, by receiving inputs to a computer game from an entity (which may be a cheater or bot; or a human), comparing the inputs from the entity to data related to inputs to a computer game from human players, and based on the comparing, determining if the entity is a human player or a cheater. The comparing may be based on performance metrics derived from the inputs, and may be by statistical analysis or, comparing a statistical distribution.

Abstract: The invention relates to the transport of goods by means of an unmanned aerial vehicle (3) and a transport container (2), as well as to the possibility of the receipt of the goods by means of a goods station (29). In order to be able to transport the goods flexibly and easily to a destination, it is envisaged in accordance with the invention that the unmanned aerial vehicle (3), and/or the transport container (2), and/or the goods station (29), comprise data storage devices (4, 6) and are configured to exchange data from the data storage devices (4, 6) with one another, or with a transport logistics server.

Abstract: A counter-swarm firework includes a shell casing, multiple streamers positioned in the shell casing, a burst charge positioned in the shell casing and configured to disperse the multiple streamers from the shell casing when discharged, a pusher plate positioned in the shell casing between the burst charge and the multiple streamers, a fire suppressant layer positioned between the burst charge and the pusher plate, and a kick charge configured to launch the shell casing and its contents prior to discharging the burst charge. The fire suppression layer may be configured to suppress heat generated by the discharge of the burst charge.

Abstract: A system designs a thin and relatively flat microwave focusing lens that can produce multiple simultaneous beams, using readily-available isotropic dielectric materials, and having a gradient-index (GRIN) profile. The design optimizes the lens to achieve beam scanning and/or multiple beams over a wide field of regard (FOR) with broad bandwidth and a very short focal length compared with conventional lenses. The lens can be used individually or as an element in a more complex antenna having multiple lenses in various orientations that are independently switched, selected and/or excited simultaneously as elements in a phased array. The antenna terminal incorporates such lens into an array of lenses along with one or more feeds to produce single or multiple beams covering a broad field of regard for such applications as satellite communications on-the-move, cellular, broadband point-point or point-multipoint and other terrestrial or satellite communications systems.

Abstract: The present disclosure provides methods and systems for printing a three-dimensional part. The method comprises: receiving in computer memory a digital model of said three-dimensional object; using one or more computer processors to partition said digital model of said three-dimensional part into a plurality of partitions, wherein a given partition of said plurality of partitions comprises a plurality of slices, and wherein a given slice of said plurality of slices comprises a plurality of segments; receiving, from a user, one or more parameters that specify a printing configuration for at least one segment of said plurality of segments; and generating printing instructions based at least in part on said one or more parameters, which printing instructions are usable by a print head to print said three-dimensional object.

Abstract: An antitheft apparatus includes: a mechanism for acquiring first event information related to an alert mode; a mechanism for controlling the alert mode in accordance with the first event information; a mechanism for monitoring movement of an object when the alert mode is enabled; and a mechanism for outputting an alarm when the alert mode is enabled and movement of the object is detected.

Abstract: A microwave prism is used to repoint an operational Direct-to-Home (DTH) or Very Small Aperture Terminal (VSAT) reflector antenna as part of a ground terminal to receive (or transmit) signals from a different satellite or orbital position without physically moving the reflector or the feed horn antenna. The microwave prism operates by shifting the radiated fields from the horn antenna generally perpendicular to the focal axis of the parabolic reflector in order to cause the main beam of the reflector to scan in response. For an existing reflector antenna receiving signals from an incumbent satellite, a prism has been designed to be snapped into place over the feed horn and shift the fields laterally by a calibrated distance. The structure of the prism is designed to be positioned and oriented correctly without the use of skilled labor.

Abstract: In one embodiment, a parabolic antenna assembly includes a main reflector, a feed system in RF communication with the main reflector including a horn and a dielectric portion, and a sub-reflector in RF communication with the feed assembly, wherein the sub-reflector includes a body portion and a stem portion mechanically coupled to one another, wherein a reflecting surface of the sub-reflector is defined by at least a portion of the body portion and at least a portion of the stem portion, wherein the dielectric portion spaces the sub-reflector from the horn, and wherein the sub-reflector includes an axially-symmetric choke for providing virtual continuity at the reflecting surface.

Abstract: The purpose of the present invention is to provide a learning model, a signal processor, a flying object, and a program that enable appropriate observation of the situation of an observed object or the environment around the observed object. The learning model is learned by using teaching data with a first received signal as input, the first received signal being based on a reflected electromagnetic wave that is an electromagnetic wave emitted to a first target area and then reflected, and with first meta-information as output, the first meta-information corresponding to the first received signal and having a predetermined item, so as to input a second received signal based on a reflected electromagnetic wave that is an electromagnetic wave emitted to a second target area and then reflected, and to output second meta-information corresponding to the second received signal and having a predetermined item.

Abstract: The invention pertains to the field of computer implemented or computer aided methods for systematic search (contrary to trial and error) for materials (material science, material informatics) in relation to structural/mechanical properties and preferably a both radiation shielding and structural/mechanical properties.

Abstract: Systems of weldable wires, powder, and materials comprising an aluminum-magnesium-scandium alloy, and methods for additive manufacturing the alloy are described. The alloy can be utilized in additive manufacturing to additively manufacture at industrial scales. With post treatment, the additive manufactured alloys can have advantageous properties for aerospace applications.