Abstract: An automatic piloting system intended for an aircraft comprising an aircraft signals acquisition module, a module for interfacing with the crew, and a module for processing the output signals, comprises: a generic software kernel for automatic piloting aboard the aircraft, comprising several parametrizable elementary cells, a parametrization tool for the generic software kernel, able to transform an operational need of the automatic piloting system, expressed by means of a configuration file in accordance with a predetermined configuration domain DC, into a database of binary parameters DB able to parametrize the generic software kernel; each cell being parametrized by the database DB, and means for loading and storage aboard the aircraft of the database DB.

Abstract: An anemometry system comprising a laser source supplying an incident beam that is backscattered by passing through the incident beam mixing means for mixing the backscattered beam and a reference beam, creating an interferometry wave conversion means, converting the interferometry wave into an electrical signal proportional to the power of said wave first determination means, for determining a time-frequency diagram of said electrical signal. The system also comprises second determination means for determining spots of said diagram, each spot being a set of connected points of said diagram, having exceeded a detection threshold computation means for computing an average of the frequency, a duration and a slope characterizing the trend of the frequency as a function of time in the time-frequency diagram, and determination means 107 for determining the air speed from all or part of said averages of the frequency, said durations and said slopes.

Abstract: Device for receiving radio-navigation signals, for aiding the piloting of an aircraft, comprising a first master GNSS module and a second slave GNSS module which are dissimilar, the first master GNSS module comprising a first means for processing radio-navigation signals and a first means for computing guidance data (Xg), the second slave GNSS module comprising a second means for processing radio-navigation signals and a second means for computing guidance data (Xg) on the basis of the measurements provided by the said second means for processing signals, each GNSS module furthermore comprising a comparison means for comparing between the outputs Xg1,Xg2 of the said first and second means for computing guidance data, suitable for executing the following integrity test: |Xg1?Xg2|>Kg·?{square root over (Variance(Xg1?Xg2))} and for inferring an integrity defect if the said integrity test is satisfied.

Abstract: Device for determining location information, primary references consolidated for an aircraft, comprising a chain for determining location information comprising means for measuring radionavigation data, suitable means for consolidating, suitable means for computing parameters and suitable means for consolidating the parameters. The device also comprises a chain for determining inertial primary references comprising means for measuring inertial data, suitable means for consolidating, suitable means for computing parameters and suitable means for consolidating the parameters. The device finally comprises a chain for determining anemo-barometric data comprising means for measuring anemo-barometric data, suitable means for consolidating the measured anemo-barometric data, suitable means for computing parameters, and suitable means for consolidating the reference parameters.

Abstract: A method includes estimating a position of a receiver, aboard a moving object, on the basis of the navigation signals emitted by satellites received by an antenna in an antenna array placed on the moving object, and using a three-dimensional geographical map to deduce, geometrically, on the basis of the position of the receiver and of a ray casting starting from the receiver, the number of paths reflected on walls of buildings present in a scene corresponding to an environment surrounding the receiver. The determined number of reflected paths is used to initialize an algorithm for estimating angles of arrival of multi-paths to deduce therefrom angles of arrival of the paths reflected on the walls before reaching the receiver. Optionally, the method can comprise making it possible to bound the distance information error due to a multi-path to render the estimation of direction of arrival of the signals more efficacious.

Abstract: The invention relates to a device for receiving satellite radio-navigation signals comprising a plurality of receiving antennas forming an antenna array. The invention consists in using a plurality of antennas disposed around the circumference of a carrier and in demodulating the signals received by each antenna separately. The diversity of the demodulation chains is utilized to compensate the signal loss on one of the chains when the corresponding antenna experiences a signal loss due to the masking of the satellite by the carrier.

Abstract: The invention pertains to a logic circuit device comprising at least one digital input furnished with a fuse (FUS) being, in the closed state, suitable for applying an electrical input voltage of the logic circuit corresponding to a first logic state from among the logic states 0 and 1, and, in the definitive open state, suitable for applying an electrical input voltage of the logic circuit corresponding to the second logic state from among the logic states 0 and 1, said fuse (FUS) being suitable for being placed definitively in the second logic state by injection of a current greater than a threshold current (CS).

Abstract: A horn that radiates a radioelectric wave coming from an input waveguide, comprises a grating placed over the aperture of the horn. The waveguide comprises a horn-shaped segment, an entrance, an aperture, and a grating placed next to the aperture. It makes it possible for at least one linearly polarised electromagnetic wave to propagate between the entrance and the aperture along a first axis. The grating comprises a frame and a set of plates extending longitudinally and continuously from a first short side of the frame to a second short side of the frame, so as to form a linear polarising filter for any electromagnetic wave the electric field of which is not polarised along a second axis orthogonal to the first axis. The grating of the waveguide comprises corrugations to reinforce the filtering of the electromagnetic wave the electric field of which is not polarised along the second axis.

Abstract: A method and device for determining a shifted circular segment on the basis of an initial circular segment, the shifted circular segment being shifted by a shift distance, the method being implemented by a computer dedicated to flight management, comprises: determining a shifted final point terminating a shifted circular segment, on the basis of the final point terminating the initial circular segment, through a shift of the final point determined on the basis of the shift distance and in the direction of shift, through the use of a straight line passing through the centre of the initial circular segment and the final point of the initial circular segment, and determining a shifted circular segment on the basis of the initial circular segment by construction of a circular segment between the shifted final point associated with the preceding shifted segment and the shifted final point associated with the shifted segment.

Abstract: Software defined radio equipment is provided. The equipment includes a software defined radio emission/reception radio sub-system, a primary software defined radio application and a secondary software defined radio application capable of interfacing with the radio emission/reception sub-system. The primary software defined radio application is a telecommunications application and the secondary software defined radio application is a cognitive radio application. A software defined radio emission/reception radio sub-system is also provided.

Abstract: A system for rescue of a target by aircraft, comprises control means to plot at least one contour delimiting an area of interest, computation means identifying, on at least one camera, at least one area of interest, in which a predetermined object is likely to be located, an expert system assigning a likelihood coefficient to one identified area of interest, computation means assigning a likelihood coefficient to at least one plotted area of interest, and computation means determining at least one relevant area of interest from the positions and likelihood coefficients assigned to areas of interest comprising at least one identified area of interest in which said object is likely to be located and/or at least one plotted area of interest on a set of images comprising at least one pilot image and/or at least one output image, said display means presenting at least one first relevant area of interest.

Abstract: Guidance for an aircraft correcting a trajectory deviation due to wind computes a roll command during trajectory alignment according to imposed alignment passing through a determined point, via a current angular divergence between a line through the point and aircraft and direction of alignment and of a current estimated ground speed of the aircraft with respect to a frame of reference. The current estimated ground speed is computed via a current air speed and stored wind speed. The stored wind speed is obtained via at least one wind speed computed via a first value of a first speed equal to the speed of the said aircraft with respect to a frame of reference originating from a satellite navigation system and a second value of a second speed equal to the air speed. The first and second value are simultaneously accounted earlier than or at the instant at the alignment phase.

Abstract: A method includes estimating the position of the moving object on the basis of the reception of navigation signals emitted by a constellation of satellites, the navigation signals being modulated by a code and the receiver comprising a local replica of the code. The determination of the confidence indicator consists in estimating a speed of displacement of the receiver over an identified trajectory segment, deducing therefrom a Doppler delay function corresponding to the motion of the receiver, in correcting the auto-correlation function of the GNSS navigation signal received from each satellite of the constellation by means of the delay function, in comparing the corrected auto-correlation function with a theoretical auto-correlation function by applying a quadratic criterion corresponding to the confidence indicator.

Abstract: The invention relates to a power supply system that is adapted be connected in input to N distinct power supply grids (R1, . . . , RN) delivering a direct or alternating input voltage (V1, VN) and to deliver a direct distribution voltage (VBUS), N being an integer greater than or equal to 2, of the type comprising a distribution bus operating under the distribution voltage (VBUS), N unidirectional converters (C1, . . . , CN) that can respectively be connected in input to a given power grid (R1, . . . , RN), and control means capable of controlling the unidirectional converters (C1, . . . CN). The power supply system also includes an energy storage device connected to the distribution bus and having a quantity of energy (E), and the control means are adapted to control the unidirectional converters (C1, . . . CN) simultaneously to regulate the electrical power (P1, . . . PN) delivered by each of said unidirectional converters (C1, . . . , CN) as a function of the quantity of energy (E).

Abstract: A communication method between two distinct networks with radio communication nodes, includes the following steps: collecting geographical location information for the nodes of the first and second network, deducing a geographical coverage area of the first and second network as a function of geographical location information; determining an intersection zone of the geographical coverage areas; identifying, as a function of the collected location information, nodes of the first and second network, located inside said intersection zone; and sending said nodes of the first identified network data indicating the collected geographical locations of the nodes of the second identified network.

Abstract: A power supply system with prioritized network selection is disclosed. In one aspect, the system can be connected to the output of N power supply networks (R1, . . . , RN), N being an integer greater than or equal to 2. It includes N controllable energy transfer members (T1, . . . , TN) each connected to a power supply network (R1, . . . , RN), control subsystem (14) for selecting one power supply network (R1, . . . , RN) by commanding the controllable member (T1, . . . , TN) connected to the selected power supply network (R1, . . . , RN) into a closed position, and energy storage subsystem capable of delivering a storage voltage (Ve). It may also comprise an energy converter connected to the output to the N controllable energy transfer members (T1, . . . , TN), the control subsystem being able to command the energy converter and the N controllable energy transfer members (T1, . . . , TN) to select at most one energy source from among the N power supply networks (R1, . . .

Abstract: A method is provided for selectively, dynamically and adaptively jamming the third-party radio communications that are external to a radio communication network to be protected, which optimizes the effectiveness of the jamming of P predefined areas or positions in a network of transmitters, and which uses closed-loop control to limit fratricidal effects on certain platforms having telecommunication transmitters/receivers to be preserved.

Abstract: An antenna with polarization switching comprising a plurality of waveguides fed with radiofrequency signals and perforated with apertures disposed so as to illuminate radiating elements placed on mobile support means in a plane that is distant from the said apertures, it being possible for the said support means to be configured according to at least two distinct configurations. The radiating elements illuminated according to one and the same configuration are adjacent, the support means being adapted for orienting the radiating elements illuminated in a first configuration according to a different direction from the radiating elements illuminated in a second configuration. The antenna applies notably to the switching of antennas onboard objects moving on the ground required to undertake high-speed communications with a satellite, in particular a geostationary satellite.

Abstract: The electronic computer according to the invention comprises: a storage case comprising a housing including an air inlet and an air outlet for the circulation of a flow of cooling air through the housing, an electronic motherboard comprising a first surface and a second surface, the second surface being provided with connectors for receiving electronic daughterboards, and an air channeling system configured so as to channel the air hitting the first surface of the electronic motherboard to bring it to the side of the second surface of the electronic motherboard. According to one aspect of the invention, the air channeling system is configured to spray the electronic daughterboards, so as to cool said electronic daughterboards through convection of the air.

Abstract: A method for securing communications in a network comprising at least one emitter terminal A and one receiver terminal B, comprises in combination at least the following steps: defining a measurable quantity that can be measured at the emitter A and the receiver B; normalizing and quantifying said defined quantity; initializing an initialization vector with said normalized and quantified quantity; using said initialization vector with a cryptographic key to randomly generate a set of consecutive frequencies to use for securing said communications between the emitter A and the receiver B; and incrementing the initialization vector by a given value after each pseudo-random generation time interval Itpa in order to generate a set of consecutive frequency values.