Abstract: A system and method use tunnelizing for analyzing frequency spectrum. The method may include the steps of under sampling an input signal to take samples in one or more tunnels each with a tunnel bandwidth that is equal to or less than a total analysis bandwidth of the input signal; detecting one or more cyclostationary features of the input signal based on the samples; and determining one or more signal types of the one or more cyclostationary features based on the one or more cyclostationary features.

Abstract: A corrosion sensor for detecting the action of corrosive media on a metallic component when the sensor is mounted in the vicinity of the metallic component in use is disclosed. The sensor includes an electrically conducting corrodible element mounted on a non conducting substrate, the corrodible element being covered with a protective coating such as paint adapted to protect the corrodible element from corrosive media. The protective coating defines a temporary feature such as a paint defect which extends across the corrodible element and is designed to permit attack on the corrodible element by corrosive media after a predetermined period of time. The corrodible element comprises a pair of spaced tracks extending generally in a longitudinal direction and a series of corrodible tracks, each corrodible track extending generally in a lateral direction and forming an electrical connection between the spaced tracks.

Abstract: A baffle system includes a baffle (40) located in a tank (16) for containing liquid (e.g. an aircraft fuel tank). The baffle (40) is a tubular member through which a liquid may flow. The baffle (40) comprises: a first tubular portion (42) providing a tubular outer wall, and a second tubular portion (44) located within the first tubular portion (42) and providing a tubular inner wall. The first and second tubular portions (42, 44) are substantially parallel. The first and second tubular portions (42, 44) are spaced apart to define a chamber (46) therebetween. The baffle (42, 44) further comprises radial side walls between the first and second tubular portions (42, 44) such that the chamber (46) is a sealed chamber. The chamber (46) may be filled with a compressible gas or gaseous mixture.

Abstract: Techniques are disclosed for managing the timing between two asynchronous clocks. The techniques are particularly well-suited for synchronizing the reference clock with the divided clock in a phase coherent DSM PLL application, but can be more broadly applied to any application that includes a need for synchronizing a data bus across a clock boundary. In one example embodiment, the techniques are implemented in a retime word circuit operatively coupled between a DSM and the divide-by-N integer divider of a PLL application. The retime word circuit receives the divide word from the DSM and generates a retimed divide word that can be applied to the divider. The retime word circuit maintains the reference clock frequency throughput, and forces the divide word seen by the divider to change only at end of a given divide cycle.

Abstract: Radiation detectors are disclosed. The radiation detectors comprise a substrate and at least one radiation sensitive region on the substrate, the at least one radiation sensitive region comprising an array of elongate nanostructures projecting from the substrate. Methods of manufacture of such radiation detectors are also disclosed.

Abstract: The present invention relates to a method of electrodepositing a metal on an electrically conductive particulate substrate. There is provided a method of electrodepositing a metal on an electrically conductive particulate substrate comprising the steps of: (i) providing a cathode; (ii) providing an anode formed from the metal to be electrodeposited; (iii) providing the substrate, cathode and anode within an electrodeposition bath comprising an electrolyte; and (iv) providing a voltage between said anode and cathode causing metal ions to flow from the anode to the cathode, wherein a separator is provided between the anode and the cathode.

Abstract: A method and apparatus for distributing power through a network (1), the network comprising consumer units (C1-C4) and provider units (P1-P6), the method comprising: for each provider unit (P1-P6), allocating some production capacity of that provider unit (P1-P6) to each consumer units (C1-C4) to which that provider unit (P1-P6) is connected, performing one or more times a process of performing steps (a) to (c); wherein step (a) comprises, for each consumer unit (C1-C4), generating a vector of resource requests, step (b) comprises, for each provider unit (P1-P6), determining whether it currently satisfies the requests made of it; and step (c) comprises, for each provider unit (P1-P6) which does not currently satisfy the requests made of it, updating the current production allocation; and from each provider unit (P1-P6) and dependant on the current production allocation of that provider unit (P1-P6), delivering to a consumer unit (C1-C4) an amount of resource.

Abstract: Techniques and architecture are disclosed for providing an optical system having an on-axis, internally mounted inertial measurement unit (IMU). In some cases, an IMU may be mounted within an interior region/cavity of an inner housing, which intern is configured to rotate within an outer housing. In some instances, a mirror assembly may be operatively coupled with the inner housing and permitted to rotate simultaneously with the IMU. Rotation of the inner housing may be achieved, in some example cases, by use of a suitable motor. In some instances, positioning componentry may be operatively coupled with one or more of the IMU and/or mirror assembly. Improvements in mechanical stability, system dimensions, and/or protection from external/environmental hazards may be realized, in some example cases.

Abstract: Disclosed is a liquid storage system having an outer tank (e.g. an aircraft fuel tank) for containing a liquid (e.g. aircraft fuel), the outer tank enclosing a liquid storage space; an inner tank located within the outer tank and enclosing the liquid storage space; and at least one coupling element associated with the outer tank and the inner tank for maintaining the tanks in a spaced apart relationship; wherein the coupling element(s) is/are deformable such that, on application of a force to the inner tank, at least part of the inner tank moves relative to the outer tank.

Abstract: A solid-state amplifier architecture is disclosed. In some embodiments, the disclosed architecture may include first and second channel chipsets configured to amplify either the entire instantaneous frequency band of a radio frequency (RF) input signal or, respectively, sub-bands thereof, which may be divided proportionally between the two chipsets. In some cases, the chipsets may be configured to amplify frequencies in excess of the entire K-band and Ka-band frequencies simultaneously. In some cases, the architecture may be configured to address a signal received, for instance, from an electronic warfare (EW) system to a log amplifier stage configured to output a signal to the EW system, in response to which the EW system may generate a RF signal for amplification by the architecture for transmission. To facilitate heat dissipation, the architecture may be coupled, in part or in whole, with a thermally conductive carrier, optionally with an intervening diamond heat spreader layer.

Abstract: A method and apparatus for determining a route for a vehicle (6), the method comprising: measuring a position of the vehicle (6); providing a specification of a region (12) into which the vehicle (6) is to be moved; and, using the measurements and specification, determining the vehicle route. The route determination process comprises constructing a graph (34) within a state space (X) of the vehicle (6), identifying, within the graph (34), a path for the vehicle (6), performing a path shortening algorithm on the identified path, and, using the shortened path, determining the vehicle route. The path shortening algorithm comprises: selecting two vertices along the path that are separated by at least two edges; connecting the two selected vertices with an additional edge; and, depending on certain cost values, removing the edges and vertices by which the selected vertices are connected, and including, in the path, the additional edge.

Abstract: Techniques and architecture are disclosed for stabilizing optical/imaging componentry over a broad range of environmental conditions and stressors. A flexure-based focus mechanism provided using the disclosed techniques may help to minimize or otherwise reduce the effects of a wide variety of stressors (e.g., vibration, torque, thermal expansion/contraction, etc.), thus assisting with achieving and/or maintaining fine focus with an optical/imaging component. In some cases, such a mechanism can be: (1) operatively coupled with a given optical/imaging system component; and/or (2) integrated therewith. In some instances, an optional drive assembly may be implemented in conjunction with such a mechanism to assist with achieving and/or maintaining fine focus.

Abstract: Disclosed are apparatus and a method for receiving and transmitting radio frequency signals by a vehicle (8). The method comprises: providing a transceiver module (28), the transceiver module (28) being located on board the vehicle (8) and comprising a plurality of transceivers (40-56), each transceiver (40-56) being configured to operate within a different respective radio frequency band; receiving, by a first transceiver, a first radio frequency signal having a first frequency and a first waveform; determining, using the first frequency and first waveform, by a communications management module (36) located on board the vehicle (8), a second frequency and a second waveform, the second frequency being in a different frequency band than the first radio frequency signal, the second waveform being different to the first waveform; and transmitting, by a second transceiver, a second radio frequency signal having the second frequency and the second waveform.

Abstract: The invention relates to a method of forming a void with a circular cross section in a substrate, more particularly to forming through holes electronic substrates The method comprising the steps of causing a laser cutter to traverse in an arc to an intended circumference of the void, traversing the intended circumference of the void at least once, wherein the lead in from the arc to the circumference comprises a radius.

Abstract: The invention relates to a launched aerial surveillance vehicle, more specifically to a grenade or under-slung grenade launcher (UGL) aerial surveillance vehicle, a surveillance system and methods of providing rapid aerial surveillance. The vehicle once deployed is capable of autonomous flight paths, with basic inputs to change the circular flight paths, so as to build up surveillance for an area of interest. The vehicle comprises at least one optical sensor, which may be IR or visible range, to survey the area of interest, and feed the images back to at least one remote user.

Abstract: A method for suppressing the Jet Engine Modulation (JEM) clutter signal returns from compressor blades (26) in data sampled by a system for Foreign Object Debris (FOD) detection in the air intake (30) of a turbine assembly, the method comprising the steps of: (a) identifying in the data the start sample position and length in samples of a single complete shaft rotation; and (b) subtracting from a current rotation dataset the samples from a comparison rotation dataset corresponding to another complete single shaft rotation.

Abstract: A method of establishing a network by sharing a secret between a first entity (A) and a second entity (B), comprising the steps of: the first entity (A) broadcasting (100) an ANNOUNCE message announcing its identity and details of other entities it is aware of, wherein each of the other entities of which it is aware is associated with a particular nonce, and the message is encrypted using a broadcast encryption scheme common to the first and second entities (A,B), and; the second entity (B), upon receiving and decrypting the ANNOUNCE message, transmitting (110) to the first entity (A) a SHARE message, wherein the SHARE message comprises a signcryption of the secret, authenticated using signcryption data associated with the particular nonce associated with the second entity (B).

Abstract: A method, battery module, an energy storage device and a power management system is provided. The capacity of the module and energy storage device is determined during current balancing between cells of the module. The capacity is subsequently used to control power to and from the energy storage device to maintain the energy storage device within a predetermined range of the maximum capacity of the energy storage device. The determined capacity is used as a maximum capacity for the energy storage device.

Abstract: The following invention relates to an improved LCD Backlight, particularly to an improved arrangement of the optical scattering dots within the light guiding plate. The light guiding plate comprises a lower surface which is formed with a plurality of optical scattering dots, which scatter and reflect the light beams to convert the light beams into a uniform surface light source, characterised wherein the surface area of each optical dot decreases as a function of its distance from at least one of the three edges comprising the LED lights.

Abstract: A method and apparatus for processing data, the data including a set of one or more system inputs; and a set of one or more system outputs; wherein each system output corresponds to a respective system input. Each system input can include a plurality of data points, such that at least one of these data points is from a different data source to at least one other of those data points. The method includes performing a kernel function on a given system input from the data and a further system input to provide kernelized data; and inferring a value indicative of a significance of data from a particular data source; wherein the inferring includes applying a regression technique to the kernelized data.