Abstract: A radar system including a switching mode power converter. A pulse radar unit is configured to transmit RF pulses with a pulse repetition frequency. The power converter includes a switching controller that is configured to control at least one switching element. The switching controller is configured to receive a frequency modulated input signal. The modulation frequency of the input signal is configured to be derived from the pulse repetition frequency of the radar unit.

Abstract: The invention relates to a method for controlling a sensor in a combat aircraft (1) comprising the steps of: a) determining (3) direction and size of a defence zone around the combat aircraft (1) based on a plurality of characteristic parameters of an enemy combat aircraft (2), b) determining (4) direction and size of at least one offence zone around the combat aircraft (1) based on the plurality of characteristic parameters of the enemy combat aircraft (2), and c) controlling (5) the sensor in the combat aircraft (1) according to emission level and detection capacity within at least one of the defence zone and the at least one offence zone. In this way, the sensors are controlled reliably and thus the pilot can act and react mission-oriented.

Abstract: The invention relates to a method for decision support of a combat object (1) in a combat situation comprising the steps of: a) detecting (3) an enemy object (2) such that a plurality of characteristic parameters of the enemy object (2) is determined, b) calculating (4) at least one quality factor for at least one combat sensor of the combat object (1), wherein each quality factor is adapted for indicating identification ability of a combat sensor, and calculating (4) at least one signature factor for at least one enemy sensor of the enemy object (2) based on a predetermined model, wherein each signature factor is adapted for indicating identification ability of an enemy sensor, c) allocating (5) each quality factor calculated in the previous step b) to each combat sensor and allocating (5) each signature factor calculated in the previous step b) to each enemy sensor, and d) controlling (6) each combat sensor against the enemy object (2) based on the result of the previous step c).

Abstract: A vehicle control system and method combining control allocation and phase compensation for forming a phase compensated actuator command signal based on a control demand signal. A feedback unit includes a matrix multiplication unit for forming an estimated behavior signal, from a control efficiency matrix and the actuator command signal. The estimated behavior signal is fed to a second summation unit for forming a difference signal. The difference signal is processed by a filter unit for forming a feedback signal which is connected to a first summation unit for forming a modified control demand signal, such that the modified control demand signal is adjusted to always represent a control demand realizable by the vehicle. The modified control demand signal is further connected to the second summation unit and to a control allocator which output is then connected to the matrix multiplier to form a feedback loop.

Abstract: The present invention regards a pyrotechnic countermeasure (15, 25) dispensing system (1) comprising a set of contacting members (27, 27?) of a launching electronic circuitry (19). A first magazine (A) is mountable in said housing (23) in such way that a contacting body (41) of each pyrotechnic countermeasure (25) being in electrical communication with a dedicated contacting member (27) of the launching electronic circuitry (19), when the system (1) is ready to use. A central electronic unit (3) is associated with the launching electronic circuitry (19) for actuating of the pyrotechnic countermeasure (25) accommodated in the first magazine (A) in dependence upon a detected threat (29).

Abstract: The object of the present invention is to provide an inventive guidance system for tracking and guiding at least one object, wherein said guidance system comprises a base station (1) including an optical imaging system (3) configured to determine the angular position vector of said at least one object (5, 15), an optical communication link for transmitting guidance control commands from said base station (1) to said at least one object (5, 15), and steering means provided on said at least one object (5, 15) for adjusting the direction of said at least one object (5, 15) in response to said guidance control commands. The invention also provides a corresponding guiding method.

Abstract: An arrangement and methods for firing a fire arm. The fire arm includes a determining unit configured to determine a movement of an aim point for the fire arm relative to a target. A processing unit is configured to determine a target point for the aim point based on the movement of the aim point relative to the target and to predict the future movement of the aim point. A firing unit is configured to fire the fire arm when the aim point is predicted to be within a tolerance of the target point.

Abstract: An air guide for a dispenser. At least one air scoop is configured to guide an air stream to a feeding out opening for chaffs on the dispenser in order to facilitate packages of chaffs to be released from the dispenser. A control unit is configured to control the air stream through the at least one air scoop.

Abstract: The present invention relates to a system (200) and method for determining a relation between a first scene and a second scene. The method comprises the steps of generating at least one sensor image of a first scene with at least one sensor; accessing information related to at least one second scene, said second scene encompassing said first scene, and matching the sensor image with the second scene to map the sensor image onto the second scene. The step of accessing information related to the at least one second scene comprises accessing a 3D map comprising geocoded 3D coordinate data. The mapping involves associating geocoding information to a plurality of positions in the sensor image based on the coordinate data of the second scene.

Abstract: A countermass container for use in a recoilless weapon. The countermass container includes an envelope encloses a countermass. A recoilless weapon includes a barrel accommodating an ammunition unit, a propellant charge and a countermass container. The countermass container includes an envelope enclosing a countermass. The barrel includes a front end opening for firing the ammunition unit out of the barrel and a rear end opening for ejecting the envelope and countermass of the counter mass container. The envelope is divided into a front section and a rear section. The rear section of the envelope has a weaker construction than the front section of the envelope to more easily crack than the front section of the envelope. Splines are provided at the front section to create ducts.

Abstract: A collision avoidance system for deciding whether an autonomous avoidance maneuver should be performed in order to avoid a mid-air collision between a host aerial vehicle equipped with the system and an intruding aerial vehicle. At least one electro-optical sensor captures consecutive images of an intruding vehicle such that the vehicle manifests itself as a target point in the images. An image processor estimates the azimuth angle, elevation angle and a first time-to-collision estimate of the time to collision between the host vehicle and the intruding vehicle. The first time-to-collision estimate is estimated based on scale change in the target point between at least two of said consecutive images. A tracking filter is arranged to estimate a second time-to-collision estimate using the azimuth angle, the elevation angle and the first time-to-collision estimate estimated by the image processor as input parameters.

Abstract: A method for improving an accuracy of a radio based navigation system by correcting the position given by the radio based navigation system with a correction vector derived from localization data stored in a map database. Position coordinates of the radio based navigation system are measured. A set of 3D map data is selected based upon the measured position coordinates of the radio based navigation system position coordinates. The actual position is determined from the selected 3D map data. The actual position data coordinates are retrieved from the 3D map data based upon the determined actual position. The correction vector is calculated from position difference between measured radio based navigation system position coordinates and retrieved actual position coordinates. The position given by the radio based navigation system is corrected with the correction vector.

Abstract: A multi-mode fuse system for use in a warhead for combating a target. At least one target sensor is electrically connected to a signal processing block and an I/O-block. The I/O-block is configured to be set by the operator of the warhead. The target sensor is adapted to generate an electrical output in response to the rate of deceleration of the warhead. The fuse system is adapted to discriminate the hardness of the target based upon the electrical output of the target sensor and to select the mode of operation depending upon the target discrimination. The fuse system is adapted to discriminate at least one type of target depending upon the electrical output of the target sensors. The fuse system selects one of at least three modes of operation of the warhead. Also a method for classifying the target hardness and selection of the operational mode of a warhead.

Abstract: A method and apparatus for determining a position and attitude of at least one camera by calculating and extracting estimated rotation and translation values from an estimated fundamental matrix based on information from at least a first and second 2D image. Variable substitution is utilized to strengthen derivatives and provide a more rapid convergence. A solution is provided for solving position and orientation from correlated point features in images using a method that solves for both rotation and translation simultaneously.

Abstract: A radar system for a synthetic aperture radar including an arrangement of at least one transmitter, two receivers, two antennas and signal processing means located on a platform. The platform is arranged to move over ground and arranged to transmit a known signal shape and receive signals reflected from the ground. The received signals are used to produce a synthetic aperture radar image of the ground. The synthetic aperture radar image includes a number of resolution cells. The radar system is further arranged to operate in a frequency band with a center frequency and with a wide bandwidth of at least one octave. A first antenna and a second antenna have a length of less than half the wavelength of the center frequency. The radar system is further arranged for: a radar system transfer function to be flat over the frequency band and one-sided beam forming with wideband antenna gain. Also a corresponding method.

Abstract: A method for reducing electromagnetic interference radiated from a power supply arrangement. A plurality of switching mode power supply units are connected to an external device. Each switching mode power supply unit includes a ground point. The radiated electromagnetic interference is reduced by synchronizing a switching frequency of each switching mode power supply unit, such that all of the synchronized switching mode power supply units have an identical switching frequency, thereby reducing the difference in electric potential between the ground points. A corresponding power supply arrangement.

Abstract: A simulation system including at least one virtual projectile/missile firing device associated to a determined position and having a movable director arranged to direct a virtual projectile/missile towards a target and an image capturer arranged to capture at least one image of a scene in front of the director. The simulation system includes a terrain database with the positions of landmarks marked, a processor arranged to process the image of the scene so as to identify at least one landmark of the terrain database in the image and the processor is further arranged to determine a compass bearing of the director based on at least the position of the virtual projectile/missile and the position of the identified at least one landmark.

Abstract: A main rotor arrangement for an UAV-helicopter. A rotor mast defines a vertical axis of rotation. A hub is for attachment of rotor blades. The hub is mounted to the rotor mast in a tiltable way so as to reduce loads acting on the rotor blades during operation of the UAV-helicopter. A damping assembly is configured to damp the tilting of the hub.

Abstract: A de-icing/anti-icing system including at least two conductive structures embedded in an article that includes an outer surface designed as an aerodynamic surface. At least one of the conductive structures is arranged adjacent the outer surface. A control unit adapted to control the energy supply to the conductive structures for generating heat to the outer surface. A first of the conductive structures includes a first conductive nano structure and a second of the conductive structures includes a second conductive nano structure. A conductive property of the first of the conductive structures differs from a conductive property of the second of the conductive structures. The first conductive nano structure serves as a heating conductor and the second conductive nano structure serves as a heating element. The first and second conductive nano structures are embedded in a common plane of a resin layer forming the outer surface.

Abstract: The present invention relates to a mould system and a method for net moulding of a co-cured integrated structure (1) comprising a skin (26) provided with stringers (4) and rib feet (2) and with a gap (6) between the stringers (4) and the rib feet (4). The mould system comprises a substantially rectangular frame (12) made of a low heat expanding material, a number of substantially rectangular boxes (8) made of a heat expanding material, connection plates (16) made of a heat expanding material and fastening means (14). By means of the connection plates (16) the gap (6) is obtained. A moulding assembly (64) is created by applying prepregs to the surfaces of the boxes (8), by connecting the boxes (8) to each other and by surrounding the connected boxes (8) with the frame (12). The moulding assembly (64) is treated in a conventional way in an autoclave in order to cure the structure (1). Thereafter the frame (12), the boxes (8) and the connection plates (16) are removed.