Abstract: The present invention relates to attitude control and, in particular, to control of the attitude of a space platform. The space platform may take the form of or be part of a satellite and/or a spacecraft. An aspect of the present invention concerns the use, in an attitude control system, of several control moment gyroscopes with limited gimbal revolutions. Another aspect of the present invention concerns an improved logic for controlling a control moment gyroscope assembly of an attitude control system.

Abstract: The present invention relates, in general, to attitude control and, in particular, to control of the attitude of a space platform, conveniently of a satellite and/or a spacecraft. In detail, an aspect of the present invention concerns the use, in an attitude control system, of several Control Moment Gyroscopes with limited gimbal revolutions. Moreover, another aspect of the present invention concerns an improved logic for controlling a Control Moment Gyroscope assembly of an attitude control system.

Abstract: Disclosed herein is a method for managing aeronautical safety-critical services or data links, comprising: receiving quality measurement data indicative of a quality parameter measured for an aeronautical safety-critical service or data link used by an aircraft; receiving a four-dimensional position associated with the quality measurement data, wherein said four-dimensional position includes a three-dimensional space position and a corresponding time that are computed based on a Global Navigation Satellite System and related to the measured quality parameter; tagging the quality measurement data with the associated four-dimensional position; determining, on the basis of the tagged quality measurement data and of a predefined task policy, a task to be performed, which task includes an adaptation of the aeronautical safety-critical service used by the aircraft or of resources allocated to the aeronautical safety-critical data link used by the aircraft, wherein said adaptation is based on said tagged quality mea

Abstract: A non-porous composite is provided that includes a textile substrate impregnated with a first fluoropolymer and a film of polymeric material comprising at least one second fluoropolymer filled with porous particles of a silicate having a granulometric dimension d50 less than or equal to 5 ?m and a porosity ranging from 30 to 60% in volume and loaded with antibacterial ions of at least one metal selected from the group consisting of silver, copper, zinc and nickel. A method for production of the composite and a containing and/or transport element for a fluid, preferably water, produced with the composite, are also provided.

Abstract: The invention concerns a method for reducing the costs of a satellite remote sensing service. The method comprises providing a satellite remote sensing system that includes only one satellite equipped with a sensor configured to acquire images of areas of the earth's surface, the satellite remote sensing system being designed to provide a satellite remote sensing service based on the images acquired by the sensor on board the satellite. In particular, the satellite follows a predefined orbit around the earth with an orbit repeat cycle shorter than three days, whereby a satellite remote sensing service with very good time performance, excellent interferometric capabilities and with drastically reduced costs is obtained.

Abstract: The present invention relates to attitude control and, in particular, to control of the attitude of a space platform. The space platform may take the form of or be part of a satellite and/or a spacecraft. An aspect of the present invention concerns the use, in an attitude control system, of several control moment gyroscopes with limited gimbal revolutions. Another aspect of the present invention concerns an improved logic for controlling a control moment gyroscope assembly of an attitude control system.

Abstract: The present invention regards a method of operation of a real aperture radar system for surveillance of the Earth's surface, said real aperture radar system being installed on a space vehicle/platform that moves in a direction of flight and comprising a transceiving antenna, or a transmitting antenna and a receiving antenna, which is/are electronically steerable.

Abstract: A projective optical metrology system including a first optical unit, which includes: an optical input that receives a first light signal; a number of optical paths; and a separator, which is optically interposed between the optical input and the optical paths and separates a number of components of the first light signal received by the optical input and couples each of the separate components to a corresponding optical path. The first optical unit also includes a light target, which emits a second light signal and is formed by a number of light elements, each light element being optically coupled to a corresponding optical path, so as to be illuminated, in use, by the component of the first light signal coupled to the corresponding optical path. The metrology system also includes a second optical unit, which generates the first light signal and receives the second light signal.

Abstract: The present invention relates to a method for acquiring SAR images for interferometric processing. The method comprises acquiring, by one or more airborne SAR sensors, SAR images of one and the same area with an acquisition geometry such that to enable interferometric processing of said SAR images. The method is characterized by an acquisition geometry in which each SAR image of the area is acquired in a respective direction of acquisition that defines a respective squint angle with respect to the direction of flight, and in which the squint angles are such that to determine a mean squint angle different from zero.

Abstract: Described herein is a projective optical metrology system including: a light target formed by a first number of light sources having a pre-set spatial arrangement; and an optical unit including an optoelectronic image sensor, which receives a light signal coming from the light target and defines two different optical paths for the light signal towards the optoelectronic image sensor. The two optical paths are such that the light signal forms on the optoelectronic image sensor at most an image of the light target that can be processed for determining at least one quantity indicating the mutual arrangement between the light target and the optical unit.

Abstract: Described herein is a projective optical metrology system including: a light target equipped with a plurality of light sources having a pre-set spatial arrangement; an optoelectronic image sensor; an optical unit receiving a light signal coming from the light target and defining two different optical paths for the light signal towards the optoelectronic image sensor, the two optical paths being such as to cause simultaneous formation on the optoelectronic image sensor of at least two images of the light target; and an electronic processing unit coupled to the optoelectronic image sensor and determining a plurality of different quantities indicating the position and attitude of the light target with respect to the optical unit, on the basis of the two images.

Abstract: The present invention regards an antenna system comprising a reflection system that comprises a reflector having a rotational symmetry with respect to an axis of symmetry. Moreover, the antenna system also comprises an electronically steerable planar radiating array that is arranged in a focal region of the reflection system, has a rotational symmetry with respect to the axis of symmetry and is operable to radiate a primary radiofrequency beam oriented in a predefined direction of illumination with respect to the axis of symmetry in such a way as to cause a specific region of the reflector to be illuminated by said primary radiofrequency beam. Said specific region of the reflector is designed, when illuminated by said primary radiofrequency beam, to generate by reflection a secondary radiofrequency beam oriented in at least one predefined direction of transmission with respect to the axis of symmetry.