Abstract: Methods and systems detect physical locations of vessels. A first satellite includes a first image sensor. A second satellite includes a second image sensor. The processor receives a first image of a target area from the first image sensor, and a second image of the target area from the second image sensor. Both images are taken within a predetermined time frame. The processor performs image recognition to identify a vessel that appears in both the first image and the second image. The processor receives the first satellite's location and orientation when the first image is taken and the second satellite's location and orientation when the second image is taken. Each satellite's location and orientation are determined by the satellite's geographic determination module. The processor determines the vessel's location by performing triangulation based on the first satellite's location and orientation and the second satellite's location and orientation.

Abstract: In one implementation, an antenna array has a plurality of antenna element, each of which is configured to apply a phase shift to a signal. A beam steering controller is configured to steer a main beam of the antenna by controlling the phase shifts applied by the antenna elements. In addition, the beam steering controller also is configured to detect a failure of an antenna element and, in response to detecting the failure, disable the failed antenna element and modify the phase shifts applied by remaining ones of the antenna elements.

Abstract: GPS (Global Positioning System) correction data distribution device includes: first communicator that communicates with terminal device; second communicator that communicates with server; HDD (hard drive) that stores a database, the database having at least one coordinate and GPS correction data in association with each other; and manager that manages the database. Manager obtains GPS correction data from server with respect to the coordinate in the database, and updates the database while associating the coordinate with the GPS correction data. Manager refers to the database upon receipt of the GPS correction data distribution request from terminal device, extracts the GPS correction data of the coordinate corresponding to a position of the terminal device, and distributes the extracted GPS correction data to terminal device.

Abstract: In a computerized method to reduce noise in phased-array signals from a set of receivers at different locations, time-series are received from the receivers, which time-series form phased-array signals. The time-series are ordered based on the different locations of the receivers and spatially phased series are obtained from the ordered time-series. Each of the spatially phased series obtained includes a series of signal values that are spatially phased. A noise component is identified in each of the spatially phased series obtained and removed from the spatially phased series to obtain denoised series. Related receiver systems and computer program products are also provided.

Abstract: Systems, methods, and apparatus for a polarization uniqueness manipulation apparatus (PUMA) are disclosed. In one or more embodiments, an antenna apparatus (e.g., a PUMA) comprises a receive antenna to receive a signal with a first polarization. In one or more embodiments, the antenna apparatus is configured to passively modify the first polarization of the signal to a second polarization. The antenna apparatus further comprises a transmit antenna to transmit the signal with the second polarization. In at least one embodiment, the receive antenna is communicatively coupled to the transmit antenna. In one or more embodiments, the receive antenna and the transmit antenna are each separate patch antennas that are mounted on a substrate of the antenna apparatus at different orientations from one another. In at least one embodiment, the second polarization is dependent upon the different orientations of the receive antenna and the transmit antenna.

Abstract: A method, apparatus, computer program, data structure, signal relating to: causing correlation of a digital signal provided by a receiver with a motion-compensated correlation code, wherein the motion-compensated correlation code is a correlation code that has been compensated before correlation using one or more phasors dependent upon an assumed or measured movement of the receiver.

Abstract: An apparatus comprises an antenna array, a block of switches, a programmable logic device and a memory device. The antenna array comprises a plurality of antenna elements. The block of switches is configured to selectively connect respective ones of a subset of the plurality of antenna elements to corresponding ones of a plurality of transceivers in a host device. The programmable logic device is configured to communicate with the host device and to control the block of switches. The memory device is coupled to the programmable logic device, and is configured to store information allowing the host device to determine how to control connectivity of individual antenna elements to respective ones of the plurality of transceivers of the host device as part of transmit and/or receive operations of the host device.

Abstract: In one embodiment, a method includes, determining multiple data packets for transmission. The method includes generating a log that includes a sequence identifier associated with each data packet. The method includes transmitting the data packets via a first radar antenna coupled with a vehicle and associated with the computing system. The method includes receiving an acknowledgement from a second radar antenna that identifies at least one sequence identifier associated with at least one of the data packets. The method includes identifying one or more data packets that were not received by the second radar antenna by comparing the at least one sequence identifier in the acknowledgment and the sequence identifier associated with each data packet in the log. The method includes retransmitting the one or more identified data packets that were not received by the second radar antenna via the first radar antenna.

Abstract: A steerable beam antenna includes a feed line and first and second arrays of switchable scatterers along opposite sides of the feed line. The first array scatters an electromagnetic wave propagating through the feed line to form a first beam portion with a first polarization, and the second array scatters the propagating wave to form a second beam portion with a second polarization orthogonal to the first polarization. Each scatterer in the first and second arrays is switchable between a high state and a low state, the high state scatterers and the low-state scatterers in each of the first and second arrays defining a periodic pattern. The scatterers in the first and second arrays are switchable to shift the pattern of scatterers in one of the arrays relative to the pattern in the other array by a selectable period shift that yields a desired polarization for the beam.

Abstract: A navigation apparatus and method which uses personal contact-based route guidance. A route guidance generator receives information about personal contacts including a location, a description and a rating value for route guidance and generates route guidance suitable for navigation applications. The personal contacts based guidance can be combined with normal street and maneuver based guidance.

Abstract: Systems and methods for facilitating the sorting of assets to sort locations. In various embodiments, a sort employee scans an asset indicia using a user device, which stores asset data corresponding to the stored asset. As the sort employee nears a sort location (e.g., a delivery vehicle) with the asset and the user device, the user device automatically communicates wirelessly with a sort location receiver to associate the asset data with data indicative of the sort location where the user deposits the asset. In various embodiments, a device may determine whether the user device is proximate the appropriate sort location for the item, and may generate an alert upon a determination that the user device is proximate an incorrect sort location.

Abstract: Integrated Visual Geo-referencing Target Unit ABSTRACT A georeferencing target unit including: a generally planar top surface including a visual marker structure on the top surface, dimensioned to be observable at a distance by a remote visual capture device; an internal gps tracking unit tracking the current position of the target unit; a microcontroller and storage means for storing gps tracking data; and wireless network interconnection unit for interconnecting wirelessly with an external network for the downloading of stored gps tracking data; a power supply for driving the gps tracking unit, microcontroller, storage and wireless network interconnection unit, a user interface including an activation mechanism for activating the internal gps tracking unit to track the current position of the target unit over an extended time frame and store the tracked gps tracking data in the storage means.

Abstract: A portable locator includes a locator housing having a display head that supports a display. A GPS module includes a frame and an antenna arm extending from a side margin of the frame. The frame defines a display aperture such that the frame is removably installable on the display head of the portable locator with the display visible through the display aperture. An electrical interface provides for electrical communication with the portable locator with the frame removably installed thereon.

Abstract: Various aspects of the disclosure relate to managing ephemeris information. Provisions are made for providing ephemeris information to a user terminal (UT). Messages are defined for sending ephemeris information and for requesting ephemeris information. Ephemeris information for a subset of the satellites in a constellation may be sent to a UT to reduce signaling load. A UT may manage a database of ephemeris information to ensure freshness of the ephemeris information.

Abstract: A method of supplementing a satellite based augmentation system approach during low visibility conditions is provided. The method includes acquiring satellite range measurements and additional measurements from at least one additional onboard independent sensor. Core sigma values are assigned for satellite range measurements and for each additional measurement from the at least one additional onboard independent sensor. A weighted position solution is determined using the acquired satellite range measurements, the acquired additional measurements and the assigned core sigma values. A discriminator is applied that utilizes vehicle positions derived from the acquired satellite range measurements and from the additional measurements to determine if a fault is present in the weighted position solution. An alert is generated if an output of the discriminator is outside a set tolerance value needed for low visibility operation.

Abstract: A method of correcting a target angle error of a radar sensor, the method may include recognizing a first target angle of a target through the radar sensor; recognizing a second target angle of the target through V2X communication and then calculating a target angle error between the first target angle and the second target angle; comparing the target angle error with a predetermined critical error; and correcting a phase curve of the radar sensor by applying the target angle error to the phase curve in accordance with the comparison result, and then giving a target warning using the corrected phase curve.

Abstract: A method for locating an animal using radio waves. In radiolocation, a large number of possible calculation results for the location of the animal arise. Using the results of previous measurements and calculations with regard to the possible locations of the node to be located, stochastic calculations are used to filter out, from the plurality of the current location calculation results, that result which in fact applies with the highest probability. Acceleration values which are measured at the animal are used in the stochastic calculations. It is assumed that with increasing measured acceleration values the probability increases that there can also be relatively large distances between temporally successive locations of the node to be located.

Abstract: Disclosed is a method and apparatus for correcting a satellite image acquisition time. The method may include receiving, from a ground-based orbit propagator, an initially predicted imaging time, a correction command execution time, and a desired satellite position for imaging, and calculating a waiting time for imaging, a predicted satellite position, a correction time, and a corrected imaging time to correct a satellite image acquisition time.

Abstract: Approaches for efficient broadcast of satellite ephemeris information or data in NGSO satellite systems, based on Keplerian parametric models of the satellite orbits, are provided. Keplerian orbit parameters are utilized (e.g., parametric orbit models) for improved efficiency in broadcast of ephemeris data over use of point-wise vectors. The linear change and harmonic variations in Keplerian orbit parameters are accounted for, for example, based on the specification of the linear and harmonic terms, increasing accuracy and extending duration of validity of the orbit parameters. Data compression is employed by (i) differential encoding of orbital parameters, and (ii) exploiting the correlation between the harmonic (Fourier) coefficients model of the orbit parameters.

Abstract: A wireless adapter front end system and method for an information handling system including a wireless adapter for communicating on a plurality antenna systems for connection to a plurality of wireless links and an antenna configurable to have a plurality of antenna radiation patterns via an antenna pattern steering control interface, wherein the antenna is operating in a first antenna radiation pattern.