Abstract: Various implementations described herein are directed to an apparatus having a transmit signal generator for a pulse compression radar. The transmit signal generator may include a frequency modulation stage with phase-lock-loop (PLL) circuitry configured to generate a transmit signal at antenna frequency. The transmit signal generator may include an amplitude modulation stage configured to shape an amplitude of the generated transmit signal.

Abstract: Disclosed is a method of mitigating the effects of anomalous propagation in a Radar system, comprising the steps of: receiving a plurality of returns from a plurality of transmit pulses; calculating a difference in magnitude between each of the plurality of returns and its successor; if one of the calculated differences indicates a first step change greater than a first predetermined threshold, calculating a first average magnitude of the returns received after the first step change, and replacing the returns received before the first step change with synthesised returns having a magnitude equal to the first calculated average magnitude.

Abstract: A multi-beam frequency-modulated continuous wave (FMCW) radar system designed for short range (<20 km) operation in a high-density threat environment against highly maneuverable threats. The multi-beam FMCW system is capable of providing continuous updates, both search and track, for an entire hemisphere against short-range targets. The multi-beam aspect is used to cover the entire field of regard, whereas the FMCW aspect is used to achieve resolution at a significantly reduced computational effort.

Abstract: In one embodiment, a lidar system includes a Q-switched laser configured to emit pulses of light, where the Q-switched laser includes a gain medium and a Q-switch. The lidar system further includes a scanner configured to scan the emitted pulses of light across a field of regard and a receiver configured to detect at least a portion of the scanned pulses of light scattered by a target located a distance from the lidar system. The lidar system also includes a processor configured to determine the distance from the lidar system to the target based at least in part on a round-trip time of flight for an emitted pulse of light to travel from the lidar system to the target and back to the lidar system.

Abstract: A mechanical scanning system for the illuminating laser beam and return light in LIDAR imaging systems. The scanning system includes a flat mirror having reciprocating rotary motion around a horizontal axis for vertical scan of the illuminating laser beam and return light. The reciprocating rotary motion of the mirror is driven by a continuously rotating motor, a cam mounted on the motor and a follower connected to the mirror and driven by the cam. An encoder is connected to the mirror's shaft and provides position indication to the imaging control electronics.

Abstract: An imaging device comprises of a pixelated array of semiconductor detector elements, in which each detecting element is electrically connected to an integrated circuit, the integrated circuit of each of the pixels comprising a passive signal path and a transient signal path. The passive path provides consecutive frame or scene imaging and the transient path detects the transient electromagnetic events such as laser pulses. The transient path is electrically connected to a timing circuit, the timing circuit for determining the time-of-flight of return pulses emitted from the electromagnetic source detected by the transient signal paths. Wherein the passive path and transient path operate simultaneously enabling simultaneous passive and LADAR imaging.

Abstract: An illustrative sensor controller embodiment includes: a transmitter that drives an ultrasonic transducer to produce a transmit pulse; a receiver that derives a sensor signal from the transducer; and a core logic that detects a trigger signal on an event signaling line and responsively provides one or more error reporting bits on the event signaling line before driving the event signaling line based on the sensor signal. An illustrative embodiment of a sensor control method includes: detecting a trigger signal on an event signaling line; providing at least one status bit on the event signaling line in response to the trigger signal; and after providing the at least one status bit, driving the event signaling line based upon on a sensor signal from a transducer. The transducer may be a piezoelectric element for producing and sensing ultrasonic pulses, particularly for use in parking-assist sensors and systems.

Abstract: To provide a radar module used for a speed measuring device or the like, in which dispersion of intensity distribution of electromagnetic waves emitted from the radar module via a lens is small, the radar module using a substrate with a plane antenna formed on a surface of the substrate includes: a lens having one end face that is plane and another end face that is spherical. In the radar module, a plane side of the lens is disposed to contact the plane antenna, and a spherical side of the lens is disposed in a remote field of the plane antenna.

Abstract: Embodiments of a communication station and method for time-of-flight (ToF) location determination in a wireless network are generally described herein. In some embodiments, a responding communication station receives a ToF measurement request. The responding communication station transmits an acknowledgment of the ToF measurement request. The responding communication station also transmits a response to the ToF measurement request that includes an indication of a time period for an initiating communication station to poll the responding communication station for a ToF result.

Abstract: The present invention discloses a data processing method and apparatus based on an automatic identification system, relates to the field of communications network technologies The method comprises: a virtual station container receives data request sent by a poller, and successively checks whether each virtual station in the virtual station container has to-be-sent data in a current timeslot, where the virtual station includes a virtual timeslot allocation logic TAL device; and when a first virtual station has to-be-sent data in the current timeslot, the virtual station container reads the data in the first virtual station, and sends the read data to a transmitter. The method provided by the embodiments of the present invention is applicable to data exchange between an automatic identification system and an external network.

Abstract: A radar system suitable for use on a vehicle and configured to detect a false radar-track arising from a reflection of a radar return from a target includes a first sensor, a second sensor, and a controller. The first sensor outputs a first signal indicative of a first target in a first area proximate to a vehicle. The second sensor outputs a second signal indicative of a second target in a second area proximate to the vehicle and different from the first area. The controller receives the first signal and the second signal. The controller determines that the second target is a reflection of the first target when a reflection-line that bisects and extends orthogonally from a line-segment extending between the first target and the second target intersects with a reflection surface detected by the second sensor.

Abstract: In some examples, vehicle detection includes detecting a target vehicle that has at least one designated attribute, confirming that the detected target vehicle is within an unobstructed or partially obstructed line of sight of the first object, and confirming that the target vehicle has been detected within the unobstructed or partially obstructed line of sight of the first object.

Abstract: A system for small space positioning comprises a transmitting element at a fixed and known location, which transmitting a modulated continuous wave, for example an ultrasonic wave, having a continuous carrier signal part and a base-band signal modulated thereon. The transmitting element transmits the modulated continuous wave over a range in which an object to be positioned may appear. A receiving element receives signals transmitted by the transmitting device and reflected by the object, and a position detection element determines a position of the object from analysis of both the carrier signal part and the base-band signal received from the reflected signal.

Abstract: A method for gated imaging using an adaptive depth of field is provided herein. The method includes obtaining boundary conditions associated with a preliminary depth of field (DOF) parameters in a scene; illuminating the scene, using a light source, with a pulsed light beam, based on the specified boundary conditions; controlling sensor array parameters based on the boundary conditions; capturing, using the sensor array, one or more images of the scene, wherein the capturing is based on one or more exposures synchronized with the pulsed light beam, to achieve gated images of the scene in accordance with the boundary conditions associated with the DOF parameters; analyzing at least one of the captured images, using data processing algorithms, to yield updated DOF parameters; and repeating the above stages with updated sensor array parameters and updated light source parameters, based on the updated DOF parameters and updated boundary conditions.

Abstract: In one embodiment, a lidar system includes a pump laser configured to produce pulses of light at a pump wavelength. The lidar system further includes an optical parametric oscillator (OPO) with an OPO medium configured to: receive the pump pulses from the pump laser; convert at least part of the received pump pulses into pulses of light at a signal wavelength and pulses of light at an idler wavelength; and emit at least a portion of the signal pulses. The lidar system also includes a scanner configured to scan the emitted pulses of light across a field of regard and a receiver configured to detect at least a portion of the scanned pulses of light scattered by a target located a distance from the lidar system. The lidar system also includes a processor configured to determine the distance from the lidar system to the target.

Abstract: An apparatus and method for recognizing an obstacle using a laser scanner are provided. The apparatus includes a laser scanner that is installed at the front of a traveling vehicle and is configured to acquire laser scanner data configured of multiple layers in real time and an imaging device installed at the front of the moving object and is configured to acquire video data. A controller is configured to divide first laser scanner data item and second laser scanner data item acquired by the laser scanner into multiple layers to extract measurement data items each existing in the respective layers and is configured to compare the measurement data items in the same layer of the multiple layers to determine whether an obstacle is present ahead of the traveling vehicle. Additionally, the controller is configured to combine the laser scanner data reflecting whether an obstacle is present with the video data.

Abstract: Positioning systems and methods for estimating an altitude of a receiver. In some embodiments, pressure and temperature information from a network of sensors is received by the receiver, and the pressure and temperature information from the network of sensors is used along with pressure information measured at a position of the receiver to estimate the altitude of the receiver.

Abstract: Disclosed herein are example embodiments for unoccupied flying vehicle (UFV) location assurance. For certain example embodiments, at least one machine, such as a UFV, may: (i) obtain one or more satellite positioning system (SPS) coordinates corresponding to at least an apparent location of at least one UFV; or (ii) perform at least one analysis that uses at least one or more SPS coordinates and at least one assurance token. However, claimed subject matter is not limited to any particular described embodiments, implementations, examples, or so forth.

Abstract: A method is disclosed for evaluating a satellite signal in a global navigation satellite system with regard to a multipath error, wherein a receiver determines a run-time gap between the receiver and a satellite based on a run-time measurement from the satellite signals of several satellites and a carrier-phase gap based on the carrier-phase measurement between the receiver and the satellite or a reference point, wherein a difference of the time derivative of the run-time gap and of the carrier-phase gap is formed in the receiver as an evaluation variable, which is evaluated using at least one multipath criterion for the presence of a multipath error.

Abstract: According to the embodiment, a radiation detector includes an array substrate including a photoelectric conversion element, a scintillator layer formed on the photoelectric conversion element and converting radiation to fluorescence, and a moisture-proof layer including a surface-smoothing layer which is a continuous film formed to cover the scintillator layer and including at least an organic resin material as a main component and a moisture-proof layer which is a continuous film formed on a surface of the smoothed layer by direct film formation and consisting from inorganic material.

Abstract: A crystal material represented by a general formula (1): (Gd1-x-y-zLaxMEyREz)2MM2O7?? (1), where ME is at least one selected from Y, Yb, Sc, and Lu; RE is Ce or Pr; MM is at least one selected from Si and Ge; and ranges of x, y, and z are represented by the following (i): (i) 0.0?x+y+z<1.0, 0.05?x+z<1.0, 0.0?y<1.0, and 0.0001?z<0.05 (where, when RE is Ce, y=0 is an exception).

Abstract: According to one embodiment, a data detection system for an X-ray CT apparatus includes a data acquisition circuit and a connection structure. The data acquisition circuit includes at least one row of X-ray detection elements arrayed in a channel direction. The data acquisition circuit is configured to acquire data required for generating X-ray CT image data corresponding to the at least one row of the X-ray detection elements. The connection structure is configured to connect the data acquisition circuit with another data acquisition circuit directly or indirectly in a row direction.

Abstract: Methods for fabricating radiation-detecting structures are presented. The methods include, for instance: fabricating a radiation-detecting structure, the fabricating including: providing a semiconductor substrate, the semiconductor substrate having a plurality of cavities extending into the semiconductor substrate from a surface thereof; and electrophoretically depositing radiation-detecting particles of a radiation-detecting material into the plurality of cavities extending into the semiconductor substrate, where the electrophoretically depositing fills the plurality of cavities with the radiation-detecting particles. In one embodiment, the providing can include electrochemically etching the semiconductor substrate to form the plurality of cavities extending into the semiconductor substrate.

Abstract: Silicon photomultiplier circuitry is provided that comprises at least one silicon photomultiplier pixel, each pixel comprising a plurality of silicon photomultiplier microcells. The silicon photomultiplier circuitry comprises control circuitry adapted to maintain a substantially constant voltage on a connection node between microcells of the pixel. The control circuitry is adapted to minimize the onset and recovery time of an output signal by maintaining a substantially constant voltage on the connection node.

Abstract: A method is disclosed for producing a hybrid, incorporable into a sensor board, for a detector module including a plurality of reader units. An embodiment of the method includes positioning the reader units in a stacked construction, each on a common sensor layer. The method further includes, after all of the reader units are positioned, fixing the reader units together on the sensor layer, thereby forming the hybrid. An embodiment of the invention further relates to a detector module for an X-ray detector including a number of sensor boards arranged adjacent to one another on a module carrier. The sensor boards are produced by an embodiment of the method.

Abstract: An arrangement for detecting neutrons. A first neutron detector includes at least some helium, and may include some Helium-3. The first neutron detector has an associated gain performance. A second neutron detector includes at least some helium. The second neutron detector may include some Helium-3 and may include some Helium-4. The second neutron detector has an associated gain performance. In an aspect, the gain performance of the second neutron detector matches the gain performance of the first neutron detector. In an aspect, the amount of all helium of the second detector is the same as the amount of all helium in the first detector. In an aspect, at least one of the first and second detectors includes at least some additional, different neutron-sensitive substance. In an aspect, at least one of the first and second detectors includes some Boron-10 as the additional, different neutron-sensitive substance.

Abstract: Systems and methods may be provided for setting up a geophysical seismic information-gathering grid utilizing a source pattern including but not limited to a “slant” or “diamond” source as well as a receiver pattern using base patterns including but not limited to “I+H” or “H+I” and “box plus.” Use of such base patterns may allow seismic data to be collected and processed using a reduced number of sources and receivers to provide a seismic imaging plot having increased and noticeably improved resolution than is presently available.

Abstract: It is proposed a method for automatically assigning wireless seismic acquisition units to topographic positions, each wireless seismic acquisition unit includes a satellite navigation system receiver. The method has the following steps, carried out by an assigning device: obtaining topographic locations at which the wireless seismic acquisition units are expected to be laid; obtaining measured positions of the wireless seismic acquisition units, corresponding to or derived from position information provided by the satellite navigation system receivers when the wireless seismic acquisition units are installed on the ground, each near one of the topographic locations; and computing associations, each between one of the wireless seismic acquisition units and one of the topographic positions, as a function of a comparison between the measured positions and the topographic locations.

Abstract: Embodiments of methods of creating and interpreting animated mosaics of multiple seismic surveys are disclosed herein. Volumes from individual seismic surveys may be flattened in each seismic cube. Animations/movies may then be produced by capturing a series of z-slice movie frames through each of the flattened volumes. The individual sets of movie frames are geo-referenced to a basemap image of well locations using appropriate composition software. Where overlap exists between surveys, the surveys are prioritized and lower priority volumes are masked by higher priority volumes. This technique provides a matched, unbroken image across overlapping volumes at each stratigraphic layer. As the movie or animation plays, a moving arrow pointer shows the vertical position of the current movie frame on a stratigraphic section consisting of a seismic reference section that is optionally labelled with suitable regional sequence names and other stratigraphic zonation data.

Abstract: Provided is a method for swell effect and mis-tie correction in high-resolution marine seismic data using multi-beam echo sounder data, and more particularly, a method for swell effect and mis-tie correction in high-resolution marine seismic data using multi-beam echo sounder data capable of acquiring the high-resolution marine seismic data having the swell effect and the mis-tie effectively corrected by using the multi-beam echo sounder data including water depth data of a sea-bottom having high precision.

Abstract: A method for managing a target location of at least a first vessel in a seismic survey involving at least one vessel, the first vessel performing a series of shoots according to a predefined set of shot points, called preplot. The method includes, during at least a part of the survey, computing an updated position of the center of the target location for the first vessel, using the trend, as a function of time, of a curve representing a time prediction shift for a shot point, for the first vessel, and depending on at least one parameter related to the capabilities of a vessel involved in the seismic survey.

Abstract: The invention comprises a method for mapping a volume of the Earth's subsurface encompassing a selected path within said volume, comprising dividing the volume of the Earth's subsurface into a three-dimensional grid of voxels and transforming detected seismic signals representing seismic energy originating from said volume of the Earth's subsurface when no induced fracturing activity is occurring along said selected path and conducted to a recording unit for recording into signals representing energy originating from the voxels included in said grid of voxels, and utilizing said transformed seismic signals to estimate spatially continuous flow paths for reservoir fluids through said volume of the Earth's subsurface to said selected path.

Abstract: Concurrently measuring, correlating, and processing magnetic and electric field data includes measuring base band signals, and then up-converting those band signals to a higher frequency for filtering, while at the same time preserving phase and amplitude information. All timed elements in the system are rigorously synchronized. The increased data set results in improved signal-to-noise ratio and information correlation.

Abstract: Various embodiments include apparatus and methods to detect and locate conductive bodies and/or provide steam-assisted gravity drainage (SAGD) steering operation. Tools can be configured with receiving sensors (310) arranged to cancel substantially a primary signal associated with a probe signal without rotating the receiving sensors to cancel the primary signal and to capture a secondary signal generated from a conductive body (301) below the earth's surface. Additional apparatus, systems, and methods are disclosed.

Abstract: An electronic frame for use in a downhole component coupling mechanism includes: a first frame element including at least one retaining structure configured to retain an electronic component; and a second frame element configured to be disposed at the first frame element, the second frame element permanently joined to the first frame element to isolate the electronic component from downhole fluids and form the electronic frame, the electronic frame configured to be disposed in a coupling assembly of a first downhole component and a second downhole component and constrained axially by the coupling assembly.

Abstract: A system includes a tool for measuring properties of a formation. The tool includes a tool body, a neutron source to emit neutrons disposed within the tool body, a neutron detector disposed within the tool body spaced apart from the neutron source, and a neutron shield arranged in operational relationship to the neutron detector, the neutron shield defines an exterior surface and an interior volume, the neutron shield to prevent neutrons having an energy below a first predetermined threshold from traveling from the exterior surface to the interior volume. The neutron shield is movably coupled to the tool body, wherein the neutron shield defines a non-occluded position relative to the neutron detector such that the neutron detector is at least partially outside the interior volume, and the neutron shield defines an occluded position relative to the neutron detector such that the neutron detector is disposed within the interior volume.

Abstract: An oscillation device includes a waveguide structure including a first conductor layer, a second conductor layer, and a semiconductor layer disposed between the first conductor layer and the second conductor layer and having a gain of an electromagnetic wave, an antenna unit configured to radiate the electromagnetic wave, a first connecting portion configured to connect the waveguide structure and the antenna unit, and a second connecting portion configured to connect the waveguide structure and the antenna unit. A first connecting position of the first connecting portion and the waveguide structure and a second connecting position of the second connecting portion and the waveguide structure are different from each other in a resonance direction in which the electromagnetic wave that resonates the waveguide structure resonates.

Abstract: A probe is provided that contacts the inner surface of the casing or other production tubing and imparts energy to the surface at the contact point, for example as heat energy or mechanical energy. Energy is imparted around the circumference of the casing, and a fiber optic distributed sensor located on the outer surface of the casing is used to measure and record the energy that it receives whilst the probe is moved to impart energy around the circumference. A record of energy versus position of the probe around the circumference can be obtained, from which maxima in the detected energy measurements can then be found. The position around the circumference which gave the maximum measurement should be the position at which the optical fiber of the fiber optic distributed sensor is located. In addition, an ultrasonic arrangement is also described, that relies on ultrasonic sound to provide detection.

Abstract: The disclosure relates to the fields of geology and geotechnics, and to a system for description of vertical sequences of rocks in cores and outcrops. The system and process provide a way to describe vertical sequences of rocks in digital media through gestures on a device equipped with a touchscreen. The process allows inserting data simply and quickly and uses a geological feature vocabulary and a library of standardized icons, an aspect that eliminates the heterogeneity of the data obtained in diverse descriptions and allows analyzing the captured data automatically by computer. The benefits include, but are not limited to: elimination of vocabulary heterogeneity and description formats of vertical sequences of rocks; generation of customized reports; data export to files with standardized formats for data exchange among software applications; reduction of the time used in the description; reduction of the time used to generate technical reports.

Abstract: Methods and apparatuses, including computer program products, are described for predicting the potential for severe weather. A computing device receives data associated with lightning activity, where the data includes lightning flash data. The computing device identifies cells of lighting activity based upon the lightning flash data and determines a movement speed, a movement direction, and a lightning rate of the cells of lightning activity based on the received data. The computing device compares the determined lightning rate to a threshold lightning rate, where the threshold rate is set based upon atmospheric conditions in a location of the cells of lightning activity. The computing device determines one or more geographical areas at risk based on the location, the movement speed, and the movement direction of the cells of lightning activity, and issues an alert to remote devices when the lightning rate exceeds a value of the threshold lightning rate.

Abstract: The invention is related to a method for producing silicone hydrogel contact lenses with a stable lubricious hydrogel coating thereon. A method of the invention comprises forming a plasma-reactive hydrophilic polymer hybrid base coating having reactive functional groups on a silicone hydrogel contact lens and heating the silicone hydrogel contact lens with the hybrid base coating in an aqueous solution of a water-soluble and thermally crosslinkable hydrophilic polymeric material to form a stable lubricious hydrogel coating thereon.

Abstract: A display device includes a display panel, an optical film arranged on an upper portion of the display panel and including first and second intaglio pattern portions having different depths from each other, a bonding member configured to contact at least a part of the display panel and a surface of the first intaglio pattern portion and an air layer configured to fill between a surface of the second intaglio pattern portion and the display panel.

Abstract: A display device can include: a display panel configured to include a first substrate and a second substrate, and a cover substrate disposed on the display panel and configured to contain a carbonate compound.

Abstract: The present design includes a coating apparatus having a mechanical arm configured to receive and maintain a lens in a desired orientation, a coating station configured to coat the lens, a drying/curing station configured to dry the lens using radiant energy, and a programmable controller configured to control the mechanical arm to move along a linear track between the coating station and drying/curing station and expose the lens to the coating station for a coating procedure and the drying/curing station for a drying procedure for a predetermined amount of time. Other stations, such as a washing station and a loading station, may be provided.

Abstract: A rod lens array unit includes at least a rod lens array that includes a plurality of rod lenses arranged in a line, each of the rod lenses having an optical axis extending in an optical axis direction, and a pair of side plate parts stacked so as to sandwich the rod lens array. Wherein, end faces of the side plate parts in the optical axis direction of the rod lens array are positioned inside an end face of the rod lens array in the optical axis direction.

Abstract: A light directing film includes a structured major surface with a plurality of microstructures extending along a first direction. Each microstructure has a first region and a second region different from the first region, a substantially constant height in the first region and a non-constant maximum height in the second region greater than the substantially constant height in the first region, and a same lateral cross sectional shape in the first region and the second region.

Abstract: An optical film comprises a supporting substrate and a structuralized layer integrally formed on the supporting layer and having a plurality of light-concentrating units including design that varies in height along their length or varies in pitch of prism structure to overcome the optical defects (wet-out) of the optical film and to enhance the optical properties of the optical film.

Abstract: The present disclosure relates to camouflaged systems and related camouflaging methods. The camouflaged systems can include at least one camouflaged object, including but not limited to transmission lines and transmission towers. One or more surfaces of the camouflaged object can be configured to appear like (e.g., match, mimic, simulate, correspond to, or otherwise blend with) an environmental condition, which can include any variety of background environmental landscapes. For example, one or more surfaces of the camouflaged object can be painted, coated, or imparted with a texture such that they reflect light in a way that corresponds to any particular environmental condition.

Abstract: A method for manufacturing optical and microwave reflectors includes: placing an assembly comprising a resin-infiltrated tendrillar mat structure on a mandrel; placing a pre-impregnated carbon fiber (CF) lamina on top of the tendrillar mat structure; placing the assembly in a vacuum device so as to squeeze out excess resin; and placing the assembly in a heating device so as to cure the tendrillar mat structure together with the CF lamina, forming the CF laminae into a laminate that combines with the tendrillar mat structure to create a cured assembly. A reflector suitable for one or more of optical and microwave applications includes: a mandrel; a resin-infiltrated tendrillar mat structure placed on the mandrel; and a pre-impregnated carbon fiber (CF) lamina placed on top of the tendrillar mat structure.

Abstract: An infrared ray cutoff filter including two or more high refractive index layers with a refractive index ranging from 1.65 to 2.00 and two or more low refractive index layers with a refractive index ranging from 1.20 to 1.45. At least one layer of the two or more high refractive index layers and the two or more low refractive index layers contains a dye having a maximum absorption wavelength in a range of 600 nm to 820 nm, and the two or more low refractive index layers are a plurality of kinds of layers which have different film thickness within a range of 50 nm to 250 nm.