Abstract: A light system may include a fused mid-IR tapered combiner to optically connect a bundle of mid-IR fiber bundles with a multimode fiber. The fused mid-IR fiber tapered combiner arranges a bundle of fibers in a geometric arrangement to reduce the diameter of a plurality of mid-IR fibers to match or equal the diameter of a single multimode mid-IR fiber. The mid-IR fibers carry light produced and emitted from semiconductor light sources.

Abstract: A mounting mechanism is disclosed. The mounting mechanism includes a base, a clamp and a lever. The base includes a lever keeper and a first rail-engaging surface. The clamp includes a second rail-engaging surface. The lever, which includes a lever tab, is connected to the clamp at a pivot to allow an operator to selectively place the clamp in an engaged position or a disengaged position. The lever is configured to move the clamp to the engaged position to allow a rail projection to be secured in a mounting cavity located between the first rail-engaging surface of the base and the second rail-engaging surface of the clamp. When in the engaged position, the lever tab located on the lever is configured to be engaged with the lever keeper located on the base in order to prevent the lever from swinging away from the clamp.

Abstract: The invention pertains to a method for threat handling of a ground based vehicle, comprising the steps of providing at least two kinds of systems for said threat handling, wherein said threat handling comprises determining information about said threat and determining actions for handling said threats based upon said information, and providing a control unit for controlling provided systems, providing a separate hardware safety configuration unit, and providing said separate hardware safety configuration unit with by means of provided means determined information about said threat so as to in an evaluation step deciding if said control unit should be given a go ahead for handling said threat or not. The invention also relates to a computer program product comprising program code for a computer implementing a method according to the invention. The invention also relates to a device and a ground based vehicle which is equipped with the device.

Abstract: A duty cycle adjustment circuit includes: a delay circuit to delay an input clock signal to produce a delayed clock signal having a rising edge partially overlapping the rising edge of the input clock signal, the input clock signal oscillating between first and second values about a midpoint value; a blender circuit to blend the input clock signal and the delayed clock signal to produce a blended clock signal; a buffer circuit to buffer the input clock signal for an amount of time comparable to the blender circuit, to produce a buffered clock signal; and a combiner circuit to combine the buffered and the blended clock signals to produce an output clock signal that transitions to or remains at the first value when both the buffered and blended clock signals are on the first value side of the midpoint value, and otherwise transitions to or remains at the second value.

Abstract: A radar signal target detection and display system employs feedback to produce improved detection and tracking. Portions of the radar images for each antenna channel to search for the target of interest are defined using the track state to define the center of the search region and using the track covariance matrix to define the size of the region. Moving reference processing (MRP) is performed. MRP employs a search centered on the motion state derived from the detection sent to the tracker on the previous coherent processing interval (CPI). Space-time adaptive processing (STAP) is employed on each CPI using a unique set of adaptive degrees of freedom (DOFs) derived from pre-MRP and post-MRP complex radar image amplitudes for each antenna channel.

Abstract: Techniques are provided for detection, classification and tracking of surface contacts based on multispectral image data from sensors on maritime assets. An example system may include an anomaly detection circuit configured to detect an object based on anomalies in the variance of pixels of water surface image data. The system may also include an object motion tracking circuit configured to analyze motion of the object relative to water surface waves. The analysis may compensate for motion of the asset and sensors. The system may further include an object classification circuit configured to classify the object as an object of interest, based on the analyzed motion of the object, and as a threat, further based on size estimation, edge detection, surface texture analysis, and volume analysis. The range from the asset to the object may be estimated based on the relation of the object to a detected or estimated horizon line.

Abstract: An apparatus having a rectangular imaging array characterized by a plurality of pixel sensors and a plurality of readout lines is disclosed. The apparatus has a plurality of column processing circuits, each column processing circuit being connected to a corresponding one of the readout lines and a plurality of signal injectors, one signal injector being connected to each of the readout lines. Each signal injector causes one of a predetermined number of voltages to be coupled to that readout line. An exposure for each of the pixel sensors is determined during image recording periods. The signal injectors inject a plurality of calibration voltages into the readout lines during calibration periods, and determines a gain function of an amplifier in one of the column processing circuits by measuring an output of the amplifier for the plurality of calibration voltages, the calibration period is between the imaging recording periods.

Abstract: An imaging method for capturing images using a sensor mounted on an unmanned aircraft comprises: acquiring a range of motion of the sensor relative to the aircraft; acquiring a specification of a linear path along the ground; acquiring parameter values relating to aircraft maneuverability; using the acquired information determining a procedure; performing, by the aircraft, the procedure and simultaneously capturing, by the sensor, a set of images. The procedure comprises the aircraft moving with respect to the path and the sensor moving with respect to the aircraft such that at some time each point along the path is coincident with a footprint of the sensor. Also, each point along the path is present within at least one of the captured images.

Abstract: A profiling approach for determining a path for an aircraft, using a method comprising the steps of determining at least two waypoints between a starting position and a desired terminal position for the aircraft, determining a path for the aircraft between the starting position and the terminal position, by performing a linear approximation of the heights of the waypoints such that the average height change between waypoints is minimized, and constrained by a maximum climb angle of said aircraft, and performing a linear approximation of arrival times for each of the waypoints and aircraft speeds between the waypoints, constrained by permissible velocity of said aircraft on the slope between the waypoints. In this way, the non-linear relationship between climb rate and speed is approximated with linear equations, because determination of the path between each set of two waypoints is broken into two linear problems.

Abstract: The invention relates to a surface inspection device; more specifically to the inspection of complex geometry welded joints. There is provided a device suitable for structural health monitoring of a surface said device comprising; a guide rail and a platform comprising at least one sensor, wherein said platform is cooperatively engaged with said guide rail, when said platform traverses along the rail.

Abstract: A wide band antenna comprising a signal generator coupled to a feed region of at least one antenna element comprising upper and lower loops. Upper loop comprising a first conductive loop element defined by an upper conductor and a first conductive blade tapering outwardly forming a flare portion adjacent a distal end of the upper conductor. Lower loop comprising a second loop defined by a base conductor and a second conductive blade tapering outwardly forming a flare portion adjacent a distal end of the base conductor, first and second conductive blades defining, between their facing edges, a notch opening outwardly from feed region. The method comprising matching an antenna element impedance to the transmission line; selecting an antenna element cut-off frequency; selecting an upper conductor length, and subsequently selecting dimensions of the upper loop such that they are substantially equal to a wavelength corresponding to the selected cut-off frequency.

Abstract: A method for manufacturing a waveguide for a display apparatus comprising providing a planar optical waveguide part (20), depositing upon the optical waveguide part a fluid material (11) curable to form an optically transparent solid, impressing (30) upon the fluid material an impression defining an input diffraction grating region, an intermediate diffraction grating region and an output diffraction grating region wherein the fluid material of the intermediate diffraction grating region is continuous with the fluid material of at least the input diffraction grating region, curing (45) the impressed fluid material to solidify said impression. The physical location of the input diffraction grating is located wholly within the geographical area of the intermediate grating, and the grating vectors of the input diffraction grating and the intermediate diffraction grating are oriented in different respective directions.

Abstract: The invention relates to a cast explosive composition. There is provided a precure castable explosive composition comprising an explosive material, a polymerisable binder, said cross linking reagent comprising at least two reactive groups each of which is protected by a labile blocking group.

Abstract: The present invention relates to an amphibious vehicle comprising a vehicle frame and a cab supported by said vehicle frame, said cab being connected to said vehicle frame via hinge means so as to allow tilting of said cab about said hinge means between a closed position and an open position, wherein said vehicle comprises a sealing arrangement comprising sealing means arranged to provide liquid tight sealing between the cab and the vehicle frame in said closed position, wherein in the closed position, the sealing arrangement is arranged to provide a confined space for protecting components of said vehicle enclosed inside said space.

Abstract: A method of weather observations by a constellation comprises at least a first cluster of three micro-satellites each orbiting around earth, and each micro-satellites comprises a spectrometer. Orbiting the three micro-satellites of the first duster around the earth in three separate orbits offset with respect to one another. Staggering the three micro-satellites with respect to one another as they orbit. Selecting the offset and the staggering, of each of the three micro-satellites with respect to one another, so that each one of the three micro-satellites have a substantially identical viewing area as each one of the three micro-satellites orbits around the earth.

Abstract: A secondary ply structure suitable for incorporation into a continuous fiber reinforced composite structure comprising a matrix material and a plurality of fiber ply reinforcing structures, a continuous fiber reinforced composite material so formed, and a method for the fabrication of the same are described. The secondary ply comprises a carrier sheet for example in the form of a ply of primary fibers and carries a two dimensional planar array of secondary fibers extending outwardly of the plane of the sheet into a third dimension in generally aligned manner and disposed across at least a major part of the surface thereof in generally aligned manner to provide out of plane reinforcement in the consolidated structure.

Abstract: The invention relates to a joint and welding configuration used during repair of metal and metal alloy plates specifically for providing a means of joining metal plates and filling voids in metal plates where access from one side is restricted. A joint arrangement suitable for repairing a void in at least one element, wherein said at least one element has a first surface and a second surface, wherein the thickness of the at least one element is at least 10 mm, further comprising two or more insert elements, each of said two or more insert elements each being friction stir welded at their abutted surfaces to said at least one element, characterized wherein said at least one element comprises at least one recess portion, wherein a Friction Stir Weld is caused from the direction of said first surface.

Abstract: The invention relates to a cast explosive composition, particularly to a pre-cure castable explosive composition comprising an explosive material, a polymerisable binder, a microencapsulated cross linking reagent, said microencapsulated cross linking reagent, comprising a cross linking agent encapsulated in a microcapsule.

Abstract: A method of configuring a telecommunications network comprising the steps of: providing a first set of time dependent network data, a network related parameter varying with time; identifying abnormalities embedded within said first set of data; providing a first set of external event data; associating respective abnormalities with corresponding event data; generating a model to represent an impact of the, or each, class of event, represented by the event data; using the, or each, model in combination with extrapolated data to predict future variation in the network related parameter; repeating this simulation for alternative input conditions; selecting a solution from the output of one the simulations; and implementing a modification to the network corresponding to the/or each respective input condition.

Abstract: A cartridge casing comprises a casing tube and a head cap. The casing tube bounds at least part of the head cap. The head cap is being fixed relative to the tube by a welding process.