Abstract: Methods and systems for producing data describing states of a plurality of targets using a processor in a system having at least one onboard sensor. The method includes obtaining data from at least one onboard sensor and performing a first data fusion process on the obtained onboard sensor data to produce onboard sensor fused data. Data is also obtained from at least one off-board sensor, and a second, different data fusion process is performed on the obtained off-board sensor data and the onboard sensor fused data to produce target state data.

Abstract: Techniques are disclosed that provide a high-speed synchronized interface for command and control between the sensor and the laser of countermeasure systems. The techniques may be implemented, for example, in a countermeasure system configured for operation with a laser and sensor, wherein the system includes an interface with laser and sensor command control words synchronized with a master clock having an embedded System Heart Beat defining a Master Frame period, a command and control protocol for the laser and the sensor within the Master Frame period; and a T0 sensor to measure the time a laser pulse leaves the system, wherein the sensor uses the measured time as reference to set frame start and timing measurements. The system may support both active ranging and passive tracking (e.g., Master Frame period may include both passive and active sub-frames). The active ranging may include both coarse and fine resolution ranging.

Abstract: The invention relates to a method for determining angle of incidence for a projectile in the path of the projectile from launcher to target, which projectile is guidable and substantially or partially roll-stable and comprises a control system and at least two actuators with associated control members, in which the following steps are included: determination of applied force for pitch control by evaluation of the moment upon the actuators of the projectile, determination of applied force for yaw control by evaluation of the moment upon the actuators of the projectile, calculation of the pitch component ? of the angle of incidence and of the yaw component ? of the angle of incidence, based on comparison between the evaluated moments and reference data for moments. The invention also relates to a GNC system.

Abstract: A hybrid electric drive system is provided for driving a medium or heavy duty vehicle. The drive system includes an internal combustion engine configured as the primary source of motive power. The engine is coupled to a front-most axle and a first drive shaft in mechanical communication with a middle drive axle. The drive system also includes an electric motor and a clutch assembly; and a second driveshaft in mechanical communication with the electric motor and a rear-most drive axle. When the electric motor is not in active operation, the clutch assembly disengages the electric motor from the rear-most drive axle.

Abstract: A system and method for an automated way of running spice on a small portion of a design is presented. The system includes a sub-circuit netlist generation processor and an analog simulation processor. The sub-circuit netlist generation processor generates a sub-circuit netlist based, at least in part, on a HDL netlist, a parasitic capacitance database and trace rules. The sub-circuit netlist contains significantly fewer paths than the HDL netlist of an entire design so that its simulation time is much quicker. The analog simulation processor generates analog simulation results of the sub-circuit netlist based, at least in part, on dynamic inputs.

Abstract: A method for fabricating butt-coupled electro-absorptive modulators is disclosed. A butt-coupled electro-absorptive modulator with minimal dislocations in the electro-absorptive material is produced by adding a dielectric spacer for lining the coupling region before epitaxially growing the SiGe or other electro-absorptive material. It has been determined that during the SiGe growth, the current process has exposed single crystal silicon at the bottom of the hole and exposed amorphous silicon on the sides. SiGe growth on the amorphous silicon is expected to have more dislocations than single crystal silicon. There should also be dislocations or fissures where the SiGe growth from the each nucleation source finally join. Thus, a dielectric sidewall can protect an exposed waveguide face from any etching from an aggressive surface preparation prior to epi growth.

Abstract: Techniques are disclosed for computing distance-to-fault (DTF) in communication systems. The techniques can be embodied, for instance, in a DTF system that provides a multi-port probing device and DTF functionality, including computing distances to faults and the fault magnitudes. In addition, the DTF system is further configured with the ability to accurately measure complex reflection coefficient of the UUT, and/or return loss of the UUT. The complex reflection coefficient and/or return loss of the UUT can be computed as a function of known scattering parameters of a multi-port measurement circuit included in the probe of the DTF system.

Abstract: According to the invention there is provided an arrangement of protective material for dissipating the kinetic energy of a moving object including one or more layers of fibrous armour material encased within a sealed encasement, in which the sealed encasement is formed from a textile armour material which is impregnated with a polymeric substance.

Abstract: According to the invention there is provided a protective material for dissipating the kinetic energy of a moving object including a plurality of layers of fibrous armour material in which at least some adjacent layers of fibrous armour material are separated by one or more separator layers for reducing inter-layer friction.

Abstract: According to the invention there is provided a fibrous armour material for dissipating the kinetic energy of a moving object which is impregnated with a shear thickening fluid, in which the shear thickening fluid includes particles of a thickening agent suspended in a liquid, and the volume fraction of the thickening agent in the shear thickening fluid is selected so that the shear thickening fluid has a viscosity-shear stress characteristic substantially corresponding to curve B or lying between curve B and curve D as shown in FIG. 2.

Abstract: A compact, lens suitable for airborne photography and mapping has distortion less than 0.6% and is athermal from ?15° C. to +40° C. The lens is near-telecentric to less than 11°, apochromatic over the wavelength range 450 nm-650 nm, and has a full field of view of 60° (high quality field over 53°). The lens can be secondary color corrected. In embodiments, the focal length is 101 mm and the back working distance is more than 10 mm. Embodiments have a focal plane diameter of 104 mm and are compatible for use with a CMOS 1.8 gigapixel multiple FPA. In embodiments, the lens comprises three groups of optical elements, with an aperture located within the second optical group. In some embodiments the first group includes two elements, the second group includes six or seven elements, and the third group include three elements. In embodiments the lens (without window) is less than 180 mm long.

Abstract: A system and method for mitigating Analog to Digital (A/D) clipping is disclosed. The mean and variance of analog input data are tracked and the bits of A/D are dynamically reassigned to keep the input signal within their range. The quantization levels of A/D are dynamically re-mapped to avoid changes in sensitivity of sensor system. The method is based on random walk statistic and keeps the sensitivity of the sensor system constant. Also the system and method provides a way to mitigate A/D clipping that avoids changing the sensitivity by dynamically re-mapping the quantization levels of the A/D, keeping the sensitivity of the system constant.

Abstract: A method for fabricating an image panel for a hyperspectral camera that is configured to scan a scene and obtain spectral image data over as defined range of wavelengths. At least one companion sensor is first fabricated on a planar imaging surface of a silicon die. At least as region of the silicon die is then back thinned to a diffraction thickness that is suitable for a diffraction slit. A diffraction slit is then formed in the thinned region so that the diffraction slit penetrates the silicon die in the thinned region, and the diffraction slit is co-planar with the imaging surface of the silicon die.

Abstract: A method and apparatus for applying a mid-IR graded microstructure to the end of an As2S3 optical fiber are presented herein. The method and apparatus transfer a microstructure from a negative imprint on a nickel shim to an As2S3 fiber tip with minimal shape distortion and minimal damage-threshold impact resulting in large gains in anti-reflective properties.

Abstract: The invention relates to a method for determining the roll angle of a guidable and substantially or partially roll-stable projectile comprising control system, radio-based positioning receiver and sensor for measuring roll angular velocity, in which the following steps are included: actuation of the actuators of the projectile by the control system, included in the projectile, for manoeuvring of the projectile; estimation of a first signal, the projectile control force, on the basis of the control system included in the projectile; measurement of a second signal, the velocity of the projectile relative to the ground-fixed coordinate system, with the radio-based positioning receiver mounted in the projectile; measurement of a third signal, the rotational velocity, with the sensor for roll angular velocity mounted in the projectile; calculation of a roll angle on the basis of the first, second and third signals, estimated projectile control force, measured projectile velocity, and measured rotational velocity,

Abstract: A data transfer method and system includes at least one switch device (102) configured, in use, to transfer data, directly or indirectly, between a plurality of computing devices (104). The at least one switch device is configured to provide a plurality of Virtual Local Area Networks (VLAN), each said VLAN being configured as a Virtual Channel (VC) by receiving data from a said computing device designated as a sole source of data over the VC. The VC data is transmitted from the sole source computing device as Ethernet frames (200) tagged with a VLAN tag (202). The VCs are routed through the at least one switch device according to a VLAN Id field of the VLAN tag of a said frame, with fixed and pre-determined routing of the frame being determined by configuration of the at least one switch device.

Abstract: The present invention relates to a method for controlling a differential configuration (40; 400) for at least two for differential drive arranged drive wheels of a motor vehicle (1; 2; 3), said differential drive being arranged to assume a locked and an open position respectively comprising the step of controlling the differential configuration between a locked and a non-locked condition in dependence of predetermined vehicle parameters, comprising the step of: controlling (S1) the differential configuration (40, 400) between a locked and a non-locked condition in dependence of centre of gravity positions of the vehicle. The present invention also relates to a system for controlling a differential configuration (40, 400). The present invention also relates to a differential configuration. The present invention also relates to a motor vehicle. The present invention also relates to a computer program and a computer program product.

Abstract: A sample and hold circuit and a method for sampling a signal are disclosed. The sample and hold circuit includes first and second switches, first, second, and third capacitors, and an amplifier. The amplifier receives a signal to be sampled on a first input. The first capacitor is characterized by a first capacitance and has a first terminal connected to an output of the amplifier by the first switch. The second capacitor is characterized by a second capacitance and has a second terminal connected to the output of the amplifier by the second switch. The third capacitor connects the first and second terminals. The amplifier is configured to form a capacitive transimpedance amplifier having the third capacitor as a feedback circuit when the first switch is in a non-conducting state and the second switch is in a conducting state.

Abstract: A method for implementing a prompt dose mitigating capacitor is disclosed. Initially, a flip chip is provided with multiple capacitors. The flip chip is then placed on top of a substrate having multiple electronic devices connected to a set of power rails. The terminals of the capacitors within the flip chip are subsequently connected to the power rails within the substrate in order to regulate voltages appeared on the power rails during a radiation pulse.

Abstract: A method and apparatus for identifying and analysing an aircraft landing site during flight is provided. The method includes the steps of using image capture means such as an infrared camera to capture in-flight images of the ground in the region of a possible landing site, using a database of computer modelled images of possible aircraft landing sites mapped to a global co-ordinate reference frame to compare the in-flight images with a modelled image of the possible landing site and optimising correspondence between the two images to obtain an in-flight image optimally mapped to the global co-ordinate reference frame. Thereafter, the landing site which corresponds to the optimally mapped in-flight image is analysed to ascertain the presence of any obstructions such as life forms, vehicles or newly erected buildings thereon.