Abstract: A magnetic resonance imaging apparatus according to the present embodiment includes sequence control circuitry. The sequence control circuitry collect first MR data in a first cardiac cycle by excitation of a first region including a first slice, and collects reference data used for phase correction of second MR data on a second slice not included in the first region before and after the collection of the first MR data in the first cardiac cycle.

Abstract: In a method and magnetic resonance (MR) apparatus for monitoring an interventional procedure with an intervention tool in a vessel of an examination subject, the intervention tool is moved in an insertion direction in the vessel and the position of a front end of the intervention tool in the insertion direction is determined. A first volume segment is determined dependent on the position and the flow direction of a fluid within the vessel. An RF saturation pulse is radiated into the first volume segment that saturates nuclear spins in the fluid within the first volume segment. MR data are acquired in a second volume segment, which contains the front end of the intervention tool and a region in front of the intervention tool in the insertion direction. An MR image is generated from the acquired MR data.

Abstract: Methods and systems are disclosed herein for selecting a channel adapted to detection of the position of a liver. The position “m” of the border between the liver and the lung is obtained from a profile. A sum Sliver of signal intensities in a liver region R1 and a sum Slung of signal intensities in a lung region R2 are calculated. Sliver and Slung are compared. In the case where Sliver is equal to or less than Slung (Sliver?Slung), a channel is not selected as a channel used at the time of detecting the position of the edge of the liver. On the other hand, in the case where Sliver is larger than Slung (Sliver>Slung), a channel is selected as a channel used at the time of detecting the position of the edge of the liver.

Abstract: A MRI quality assurance device, according to the present invention, has a housing made of a rigid MRI invisible material containing one or more sealed reservoirs containing a fluid MRI signal producing material. Each sealed reservoir has a first volume portion and a second variable volume portion in fluid communication therewith.

Abstract: A magnetic field sensor includes a first magnetic field sensing element first generating a first signal having a first axis of maximum sensitivity, a second magnetic field sensing element for generating a second signal and having a second axis of maximum sensitivity, one or more detectors for receiving an output of the first magnetic field sensing element or the second magnetic field sensing element, and a processor that receives an output of the one or more detectors and uses the output of the one or more detectors to calculate a first constant Kc and a second constant Ks and then uses Kc and Ks to compensate for an orthogonality error between the first axis of maximum sensitivity and second axis of maximum sensitivity. The detectors include peak detectors and/or zero-crossing detectors that compare the output of the first input signal or the second input signal with a threshold or zero.

Abstract: The system for aiding the landing of an aircraft on a landing runway of an airport equipped with an Instrument Landing System (“ILS”) corresponding to an axis of a predetermined approach, includes: an ILS signals receiver and a processing unit. The processing unit is configured to, when the ILS signals receiver) has not yet captured a Glide signal corresponding to a Glide axis of the approach as a function of items of information relating to the predetermined approach, acquired from a database, determine a protection volume in which there is no risk of the ILS signals receiver detecting a replica of the Glide signal; and when a current position of the aircraft is above the protection volume, inhibit the capture of the Glide signal by the ILS signals receiver and instruct the emission of an alert item of information in the cockpit of the aircraft.

Abstract: A method for determining a phase bias in the signal transmitted by at least one of the radiating elements of an active antenna on the ground emitting signals into space using a space-division multiple access SDMA method, implementing a step, for each reference receiver, of comparing, to a threshold, the difference between the value of a measurement of the power received by each reference receiver and the sum, out of the radiating elements of the subset beamforming in the direction of the reference receiver, of the differences between the equivalent isotropically radiated power in the direction of the reference receiver and the free-space path loss of each radiating element of the subset.

Abstract: According to one embodiment, a wireless receiver includes reception circuitry and processor circuitry. The reception circuitry receives a radio wave from a radio wave emitter. The processor circuitry estimates a parameter of a ratio of a first received power of a line-of-sight component in the radio wave to a second received power of the radio wave, estimate the first received power based on the parameter and a value of the second received power; and calculate a distance to the radio wave emitter, based on the first received power.

Abstract: A radio wave incoming direction estimation apparatus according to an aspect of the present invention estimates an incoming direction of an incoming radio wave reaching an array antenna apparatus including a plurality of antennas. The radio wave incoming direction estimation apparatus includes a virtual current calculator, and an incoming direction estimator. The virtual current calculator calculates a virtual current at each antenna from a received current that is generated at each of the antennas by the incoming radio wave on the basis of data indicating a relationship between supplied power to each of the antennas and a current that is generated at each of the antennas by the supplied power. The incoming direction estimator estimates the incoming direction of the incoming radio wave on the basis of the virtual current at each of the antennas.

Abstract: In a server device, an acquisition unit acquires positional information on a communication terminal. An extraction unit extracts route information including a start point and an end point from the positional information. An identification unit identifies a type of a means of movement of the communication terminal based on the positional information. A masking unit masks a segment of the route information including the start point and a segment including the end point to generate output route information. The masking unit masks a totality of segments defined in accordance with the type of the means of movement when the means of movement is changed in a masked segment.

Abstract: Certain examples of the present invention relate to a method, apparatus, system and computer program for controlling a positioning module and/or an audio capture module. Certain examples provide a method (100) comprising: associating (101) one or more positioning modules (501) with one or more audio capture modules (502); and controlling (102) one or more operations of the one or more positioning modules (501) and/or the associated one or more audio capture modules (502) in dependence upon: one or more pre-determined times (202(a)), and one or more pre-determined positions (202(b)).

Abstract: A method for determining the multipath components of a propagation channel in a geolocation system or an IR-UWB telecommunications system. The IR-UWB emitter emits a plurality of UWB impulses at a plurality of central frequencies, sequentially or in parallel. The receiver translates the response of the channel to each of these impulses into the baseband, integrates it over a plurality of time intervals in order to provide intensity samples related to successive times of flight. The intensity samples related to the same time of flight and to the various frequencies are combined in order to provide a composite sample at the output of a multiband IR-UWB receiver module. The multipath components are determined from the composite samples exceeding a predetermined threshold value.

Abstract: A method for processing radar data is described herein. In accordance with one embodiment, the method includes the calculation of a Range Map based on a digital radar signal received from a radar receiver. The Range Map includes spectral values for a plurality of discrete frequency values and a plurality of discrete time values, wherein each spectral value is represented by at least a first parameter. Further, the method includes applying an operation to at least the first parameters in the Range Map for at least one discrete frequency value to smooth or analyze at least a portion of the Range Map.

Abstract: In accordance with an embodiment, a packaged radio frequency (RF) circuit includes a radio frequency integrated circuit (RFIC) disposed on a substrate that has plurality of receiver circuits coupled to receive ports at a first edge of the RFIC, and a first transmit circuit coupled to a first transmit port at a second edge of the RFIC. The packaged RF circuit also includes a receive antenna system disposed on the package substrate adjacent to the first edge of the RFIC and a first transmit antenna disposed on the package substrate adjacent to the second edge of the RFIC and electrically coupled to the first transmit port of the RFIC. The receive antenna system includes a plurality of receive antenna elements that are each electrically coupled to a corresponding receive port.

Abstract: A radar device includes a signal generating unit that generates a transmission signal; an output unit that outputs a transmission wave based on the transmission signal, at each of predetermined angles; a receiving unit that receives the reflected waves of the transmission wave from targets; and a deriving unit that derives information on the targets on the basis of reception signals related to the reflected waves. The signal generating unit generates a first transmission signal including at least one modulated signal as the transmission signal related to the transmission wave to be output at a first angle, several times, at intervals of a predetermined idle running time, and generates a second transmission signal including at least one modulated signal, as the transmission signal related to the transmission wave to be output at each of second angles different from the first angle, in each interval of the idle running time.

Abstract: A method for predicting a motion of an object includes predicting the motion of the object based on predicted future sensor readings. The predicted future sensor readings are computed based on current measurement data of one or more range sensors.

Abstract: A geodesic system for measuring the position of a target when the target is obstructed from view by a station. The geodesic system includes a rod fastener positioned on a housing axis for selectively coupling a housing to a survey rod, wherein the housing axis is collinear with a rod axis centrally-positioned within the survey rod when the system is coupled to the survey rod. The system further includes a cuboid-shaped station-scope for viewing the station along a station-line extending between the system and the station and for viewing the target along a target-line extending between the system and the target. The station-scope includes a mirror equally bisecting the station-scope. The housing axis equally bisects the mirror at an intersection of the station-line and the target-line. The station further includes a rangefinder for aligning a laser with the target, the laser having an origination point along the housing axis.

Abstract: A multimode pixel of a pixel array is provided. The multimode pixel includes a photodetector, an image sensing circuit having a first plurality of transistors, and a laser range finding (LRF) circuit having a second plurality of transistors. At least one transistor of the second plurality of transistors, but not all of the second plurality of transistors, is included in the first plurality of transistors. The LRF circuit being configured to perform LRF operations and the image sensing circuit is configured to perform passive imaging operations. The image sensing circuit and the LRF circuit are configured to perform concurrently.

Abstract: Time of Flight (ToF) depth image processing methods. Depth edge preserving filters are disclosed with superior performance to standard edge preserving filters applied to depth maps. In particular, depth variance is estimated and used to filter while preserving depth edges. In doing so, filter strength is calculated which can be used as an edge detector. A confidence map is generated with low confidence at pixels straddling a depth edge, and which reflects the reliability of the depth measurement at each pixel.

Abstract: A sensor configuration system can determine imminent lighting conditions for one or more light sensing elements of an autonomous vehicle (AV), and can execute a set of configurations for the one or more cameras to preemptively compensate for the imminent lighting conditions.

Abstract: A system, comprising a processor; and a memory, the memory storing instructions executable by the processor to receive image data from a vehicle sensor installed in a vehicle, transform the image data into global coordinate data, estimate fractal dimension values of the global coordinate data, and determine calibrated parameters based on the fractal dimension values to operate the vehicle sensor.

Abstract: A radio frequency (RF) system includes a flexible substrate that includes a first portion and a second portion. The first portion overlaps a first surface of a substrate. The first surface is on a first side of the RF system. The second portion overlaps a second surface of the substrate. The second surface is on a second side of the RF system. The RF system further includes an antenna disposed over the first portion of the flexible substrate. The antenna is configured to transmit/receive RF signals on the first side of the RF system. The RF system also includes a transmission line disposed on a bent region of the flexible substrate between the first portion and the second portion. The transmission line is configured to propagate the RF signals between the first portion and the second portion on the second side of the RF system.

Abstract: In some examples, a radar system includes phase-locked loop (PLL) circuitry configured to generate a control voltage signal and processing circuitry configured to generate a reference signal to drive the PLL circuitry to generate the control voltage signal. In some examples, the radar system also includes voltage-controlled oscillator (VCO) circuitry configured to generate radio-frequency (RF) signals based on the control voltage signal and one or more antennas configured to transmit the RF signals and receive returned RF signals. In some examples, the radar system further includes receiver circuitry configured to generate intermediate-frequency (IF) signals based on the returned RF signals, wherein the processing circuitry is further configured to detect an object based on the IF signals.

Abstract: A method of tracking objects using a radar, includes sending a beamcode to at least one radar antenna to set a predetermined direction, using samples from a random distribution of at least one of a phase or an amplitude to generate a tracking signal pulse train, transmitting the pulse train from the at least one antenna within a pulse time window, receiving return signals from objects at the at least one antenna, and using the return signals to gather data to track the objects. A radar system has at least one radar antenna to transmit a tracking signal, a memory to store a set of random distributions, a controller connected to at least one radar antenna and the memory, the controller to execute instructions to determine which random distribution to use, generate a pulse train using the random distribution, transmit the pulse train to the at least one radar antenna as the tracking signal, and gather measurement data about objects returning signals from the tracking signal.

Abstract: An apparatus (1) and method for ascertaining object kinematics of a movable object (20), comprising a trajectory calculation filter (2) for calculating an estimated movement direction ({circumflex over (?)}K+) of the object (20) on the basis of a predicted position ({circumflex over (x)}K?,?K?) of the object (20) and on the basis of the position (xK,yK) of the object (20) specified in radar measurement data of the object; and comprising a calculation unit (3) for calculating Cartesian speeds (VxK,YyK) of the object (20) depending on the measured radial object speed (VradK) and a measured object angle (?K), which are specified in the radar measurement data of the object (20), and depending on the estimated movement direction ({circumflex over (?)}K) of the object (20) that is calculated in the trajectory calculation filter (2).

Abstract: The invention relates to a device intended for detection of non-authorised objects or substances carried by an individual in a protected access zone, characterized in that it comprises at least two columns (10, 20) together defining a channel (30) by which individuals to be checked can transit, windings (110, 120) distributed in the two columns (10, 20), adapted to emit a magnetic detection field and adapted to detect the perturbations of the magnetic detection field caused when an individual travels via the channel between the two columns, microwave sender/receiver means (210, 220) arranged in the two columns (10, 20), and analysis means (40) adapted to analyse the signals from the receiver windings (110, 120) to detect the presence of a metallic object carried by an individual transiting via said channel formed between the two columns (10, 20), to analyse the signals from microwave receivers (210Rx, 220Rx) corresponding to the signals transmitted from one column into the column opposite and into the signals

Abstract: The invention relates to a device adapted to inspect the leg of an individual, and comprises a support base (110) adapted to receive a foot of an individual, two lateral panels (120) adapted to be placed on either side of the leg of an individual, positioning means (112, 114, 142) of the foot and of the leg relative to the support base (110) and to the panels (120), microwave receiver/sender transducer means (200) arranged on each lateral panel (120) opposite the lateral panel which is facing it, and analysis means (300) of signals detected on the microwave receivers (200) corresponding to the signals transmitted from a panel (120) to the opposite panel and to the signals reflected from a panel (120) towards this same panel.

Abstract: A driving support ECU includes: a lateral width acquisition unit that acquires from an image a dimension of an object in a lateral direction with respect to an imaging direction of an imaging means as a lateral width; a determination unit that compares the current lateral width with a past lateral width to determine whether the current width is smaller than the past lateral width; and a correction unit that, when the current lateral width is smaller than the past lateral width, corrects right and left end positions of the lateral width based on whichever is smaller, the deviation amount of the right end position of the object or the deviation amount of the left and position of the object.

Abstract: Various communication systems may benefit from suitable architectures. For example, L-band radio frequency (RF) architectures may be beneficial to systems including avionics systems. A system can include a mode-s function as well as a traffic alert and collision avoidance system function separate from the mode-s function. The system can further include a directional antenna in reception and transmission connection with the traffic alert and collision avoidance system function. The system can additionally include an omni-directional antenna in reception and transmission connection with the mode-s function.

Abstract: Various communication systems may benefit from suitable use of redundancy. For example, surveillance systems in avionics applications may benefit from having functional redundancy. A system can include a collision avoidance or alerting system function in wired connection to a directional antenna. The system can also include a first mode-S transponder function in wired connection to the directional antenna. The system can further include a second mode-S transponder function in wired connection to the directional antenna, wherein the first mode-S transponder function is independent from the second mode-S transponder function.

Abstract: In some examples, a system is configured for determining an estimated altitude of a melting layer, and the system includes a weather radar device configured to transmit radar signals and receive reflected radar signals. In some examples, the system also includes processing circuitry configured to determine the estimated altitude of the melting layer based on the reflected radar signals.

Abstract: A marine electronic device is provided including a user interface comprising a display, a marine electronic device processor, and a memory. The memory includes computer program code configured to cause the marine electronic device to receive sonar return data from at least one transducer element configured to transmit sound waves into a body of water, receive the sonar return signals from the body of water, and convert the sonar return signals into sonar return data. The computer program code is further configured to cause the marine electronic device to generate one or more sonar images based on the sonar return data, identify one or more degraded performance characteristics associated with the sonar return data or the one or more sonar images, and cause an alert based on identification of the one or more degraded performance characteristics.

Abstract: A two dimensional ultrasonic array transducer receives echo signals from increasing depths of a volumetric region. The 2D array is configured into patches of elements which are processed by a microbeamformer and summed signals from a patch are coupled to a channel of an ultrasound beamformer At the shallowest depth the 2D array receives echoes from small patches in the center of the aperture. As signals are received from increasing depths the aperture is grown by symmetrically adding patches of progressively larger sizes on either side of the small patches in the center. The inventive technique can improve the multiline performance of both 1D and 2D array probes.

Abstract: A distance measuring device for measuring the distance to an object is provided, including a light-emitting module, a driving assembly disposed in the light-emitting module, and a light-receiving module. The light-emitting module has a housing, a light source disposed in the housing, a light grating element, and an optical path adjuster. The light source emits a measuring light sequentially through the optical path adjuster and the light grating element along a first axis. The driving assembly can drive the optical path adjuster or the light grating element to move relative to the housing. The light-receiving module receives the measuring light which is reflected by the object to obtain distance information of the object.

Abstract: A Lidar system may comprise: a laser configured to emit a laser beam; a reflector configured to receive the emitted laser beam and allow at least a portion of the emitted laser beam to transmit through the reflector, the at least the portion of the emitted laser beam being detection light; a two-dimensional scanning galvanometer; and a detector. The two-dimensional scanning galvanometer is configured to reflect the detection light to scan across an environment, receive at least a portion of the detection light reflected by a target in the environment, the at least the portion of the detection light reflected by the target being receiving light, and reflect the receiving light towards the reflector. The reflector is further configured to reflect the receiving light towards the detector. The detector is configured to measure the receiving light to detect the target.

Abstract: A pixel output processing circuit of a focal plane array (FPA) having a plurality of laser range finding pixels (LRF) is provided. The respective LRF pixels output a high frequency analog signal in response to sensing a reflected laser pulse. The pixel output processing circuit includes a common net and a detection circuit. The common net is connected to a amplifying transistor of each of the LRF pixels for receiving analog signals output from the respective LRF pixels. The detection circuit is coupled to the common net and outputs a pulse flag in response to detecting that a high frequency analog signal has been received by the common net.

Abstract: A system for tracking targets. A sequence of sensor observations is processed with two thresholds, including a first threshold, and a second threshold, higher than the first threshold. Signals that exceed the first threshold are identified as low-confidence target detections and stored for possible future use. When a signal exceeds the higher second threshold, it is identified as a high-confidence detection, and one or more candidate tracks are formed, including the high-confidence detection and one or more low-confidence detections from within a neighborhood of the high-confidence detection.

Abstract: Apparatuses and methods of securing Global Navigation Satellite Systems are disclosure. In one exemplary embodiment, a mobile device may comprise: a communication interface configured to monitor signals from a plurality of satellites, a processor configured to determine impairment of one or more satellites in the plurality of satellites using the signals form the plurality of satellites, a memory configured to store a status of the determined impairment of one or more satellites in the plurality of satellites, and the communication interface that transmits the status of the determined impairment of the one or more satellites in the plurality of satellites to a server. The processor further determines a position of the mobile device using the status of the determined impairment of one or more satellites in the plurality of satellites, and stores the determined position and a corresponding digital certificate indicative of authenticity of the determined position in a memory.

Abstract: An on-board system for location estimation and communication for a vehicle. In some embodiments, the on-board system includes a global navigation satellite system receiver, an inertial sensing system, a wireless receiver, and a processing circuit. The wireless receiver includes at least one of a cellular communications receiver, and a wireless local area networking receiver.

Abstract: A method of tracking a plurality of signals from a single satellite comprises receiving a first signal transmitted by a satellite; receiving at least a second signal transmitted by the same satellite; applying a pre-filtering process to determine the cumulative in-phase and quadrature components of the first, second signals, and optionally any further signals; and applying a filtering process to the cumulated in-phase and quadrature components of the first and at least second signals to determine a range and range rate of the satellite; wherein the filtering process comprises applying a Kalman filter. The method results in a determination of the range and range rate from a single satellite with improved signal to noise ratio. The range and range rate so determined may be used, with data from other satellites, to produce a navigational position. The method may be used with each such satellite used in producing the navigational position.

Abstract: Disclosed is a position estimating method and apparatus that estimates a position based on main sensing data and secondarily determines the position based on the main sensing data and auxiliary sensing data when the auxiliary sensing data is found to be reliable.

Abstract: A navigation method that includes receiving a satellite navigation signal from a satellite navigation system, determining a position based on the received satellite navigation signal, obtaining quality data indicative of a satellite navigation signal quality as a function of a location information, and correcting the determined position based on the satellite navigation signal quality.

Abstract: A system for measuring the position of one or more object in an area of interest. The system has an ultra wideband position measurement system with a plurality of beacons which are each located in separate fixed positions with respect to the area of interest; and one or more portable tag which is attachable to the object and a Global Navigation Satellite System (GNSS).

Abstract: Methods, devices, and systems for tracking an asset are provided. In particular, a device is provided that includes a processor; a wide-area network radio; a global positioning system (GPS) receiver; an accelerometer; and a physical interface. The processor determines a GPS signal is unavailable. In response to determining the GPS signal is unavailable, the processor enables one or more sensors. The processor obtains fingerprint data from a first sensor of the one or more sensors. The processor transmits the fingerprint data to a network-based server. The fingerprint data is used by the server to identify a location of the tracking device.

Abstract: A measurement apparatus comprising a controller configured to control functions of said measurement apparatus in response to retrieved user motion data (UMD) of at least one associated user of said measurement apparatus.

Abstract: A method of manufacturing a radiation detector includes a first step of forming a scintillator layer including a plurality of columnar crystals on a main surface of a sensor panel including a plurality of photoelectric converting elements by a vapor phase deposition method, a second step of forming a resin frame on the main surface to surround the scintillator layer and disposing a frame member made of an inorganic solid material to be in contact with the resin frame along an outer circumference of the resin frame, a third step of sealing the scintillator layer by bonding a protective plate to the resin frame, and a fourth step of curing the resin frame.

Abstract: A scintillator material includes a matrix phase and scintillator parts dispersed in the matrix phase. The scintillator parts contain fine particles of single crystal. According to the above aspect, since the scintillator parts containing the fine particles of single crystal are dispersed in the matrix phase, it is possible to reduce an influence from an environment.

Abstract: Among other things, a detector unit for a radiation detector array is provided. The detector unit includes a radiation detection sub-assembly including a scintillator and a photodetector array. A first routing layer is coupled to the photodetector array of the radiation detection sub-assembly at a first surface of the routing layer. An electronics assembly includes an analog-to-digital converter that converts an analog signal to a digital signal. A second routing layer is disposed between the A/D converter and the first routing layer. A shielding element is disposed between the A/D converter and the second routing layer. The shielding element shields the A/D converter from the radiation photons. The second routing layer couples the electronics sub-assembly to the first routing layer. A first coupling element couples the A/D converter to the second routing layer.

Abstract: A boron coated straw detector for use in a neutron detection system is disclosed comprising a boron coated straw having at least one boron-coated septum radially oriented and extending a pre-determined distance towards the center of the straw. Preferably, the straw comprises a plurality of septa comprising a rigid surface, coated on both sides with a boron composition. Preferably, the septa run the length of the straw detector from one end of the straw to the other. The area coated on the septa adds to the area coated on the arc segments offering a significant benefit in sensitivity of the neutron detector.

Abstract: A method to classify one or more seismic surfaces or surface patches based on measurements from seismic data, including: obtaining, by a computer, a training set including a plurality of previously obtained and labeled seismic surfaces or surface patches and one or more training seismic attributes measured or calculated at, above, and/or below the seismic surfaces; obtaining, by the computer, one or more unclassified seismic surfaces or surface patches and one or more seismic attributes measured or calculated at, above, and/or below the unclassified seismic surfaces; learning, by the computer, a classification model from the previously obtained and labeled seismic surfaces or surface patches and the one or more training seismic attributes; and classifying, by the computer, the unclassified seismic surfaces or surface patches based on a comparison between the classification model and the unclassified seismic surfaces or surface patches.