Abstract: A system and method generates a phase scintillation map that is utilized to de-weight satellite signal observations from GNSS satellites. One or more base stations each assign an index value to one or more GNSS satellite in view, where the index value indicates an adverse effect of ionospheric scintillation on signals received from the GNSS satellite. The values and identifiers may be transmitted to a server. The server utilizes the received information to generate the phase scintillation map that may include one or more scintillation bubbles, wherein a location of each scintillation bubble is based on the received information. The phase scintillation map is transmitted to one or more rovers. The rover determines if a pierce point associated with a selected GNSS satellite in view of the rover falls within the boundaries of a scintillation bubble. If so, satellite signal observations from the selected GNSS satellite are de-weighted.

Abstract: A mechanism converts positioning correction information included in an SSR message as defined by “RTCM STANDARD 10403.2” to positioning correction information conforming to “RTCM 10402.3”. A conversion device includes a computation processing section that acquires a plurality of types of positioning correction information conforming to “RTCM STANDARD 10403.2”, an approximate position being a positioning result, and a satellite position of a satellite that transmits positioning information based on which the approximate position is calculated, and based on the types of positioning correction information, the approximate position, and the satellite position that have been acquired, generates pieces of element data, such as CLR and ORB, which are elements used for generating the types of positioning correction information conforming to “RTCM 10402.3”, by computation, and a conversion calculation section that generates the types of positioning correction information conforming to “RTCM 10402.

Abstract: An improved GNSS antenna having an integrated antenna element in combination with a plurality of built-in sources of additional data and/or a plurality of devices for receiving additional information for exchanging the information and transmission of GNSS signals from the antenna element to a GNSS receiver over a single RF cable.

Abstract: A system in accordance with one aspect mitigates interference with PtPRs (Point to Point Receivers) that may be caused by a Wi-Fi base station or terminal devices associated with the Wi-Fi base station.

Abstract: A method of determining incident angles of Radio Frequency, RF, signals received by an antenna array comprising a plurality of antennae is described. The method comprises generating a plurality of direction finding, DF, signals based on antenna signals received from the antenna array, wherein each DF signal corresponds to a respective antenna array element and each antenna array element corresponds to one or more antennae. A plurality of DF spectra are then generated, each DF spectrum corresponding to a respective DF signal and comprising measured values of signal power at two or more given respective frequencies. An incident signal angle is calculated for each given frequency, based on the measured values of power at the frequency, the configuration of the antennae in the antenna array and antenna gain patterns corresponding to the antenna array elements.

Abstract: A satellite corrections generation system receives reference receiver measurement information from a plurality of reference receivers at established locations. In accordance with the received reference receiver measurement information, and established locations of the reference receivers, the system determines wide-lane navigation solutions for the plurality of reference receivers. The system also determines clusters of single-difference (SD) wide-lane floating ambiguities. A satellite wide-lane bias value for each satellite of a plurality of satellites is initially determined in accordance with fractional portions of the SD wide-lane floating ambiguities in the clusters and over-range adjustment criteria. A set of navigation satellite corrections for each satellite, including the satellite wide-lane bias value for each satellite, is generated and transmitted to navigation receivers for use in determining locations of the navigation receivers.

Abstract: A system includes a phased array antenna. The phased array antenna includes a rear panel that has: a first array of phase shift elements; and a second array of rear antenna elements. The phased array antenna also includes a front panel that has a third array of front antenna elements. Each of the front antenna elements is electrically coupled to a corresponding one of the rear antenna elements through one of the phase shift elements. When the second array of rear antenna elements receives a radio signal from a base station and the first array of phase shift elements receives an optical control beam from the base station, the third array of antenna elements radiates an output radio signal in a direction indicated by the optical control beam.

Abstract: A radio wave arrival angle detection device of the present invention extracts symbols and resolves the same into sub-carriers having various frequency components, for OFDM carrier waves received by a first antenna and a second antenna, respectively. The arrival angle of the carrier waves is calculated on the basis of the geometric relationship between a phase shift of the respective sub-carriers of the OFDM carrier waves received by the first antenna and the second antenna, and the arrangement of the first antenna and the second antenna.

Abstract: Techniques that facilitate reconfigurable transmission of a radar frequency signal are provided. In one example, a system includes a signal generator and a power modulator. The signal generator provides a radar waveform signal from a set of radar waveform signals. The power modulator divides a local oscillator signal associated with a first frequency and a first amplitude into a first local oscillator signal and a second local oscillator signal. The power modulator also generates a radio frequency signal associated with a second frequency and a second amplitude based on the radar waveform signal, the first local oscillator signal and the second local oscillator signal.

Abstract: A method and apparatus are provided for determining a schedule for a contact between a ground segment and a space segment. The ground segment comprises multiple ground stations, each ground station having one or more antennas, such that the overall number of ground station antennas in the ground segment is (Nant), and the space segment comprises a constellation of satellites in orbit, in which the number of satellites is (Nsat). The method comprises selecting a subset of no more than Nant satellites from the Nsat satellites for contact at a given epoch with the ground segment; and allocating each of the selected Nant satellites to the Nant antennas in a one-to-one relationship at the given epoch. The selecting of the subset of no more than Nant satellites from the Nsat satellites comprises determining a subset of the Nant satellites that has maximum spatial diversity.

Abstract: Methods, systems, and computer programs are presented for cloud-offloaded position calculation with on-device acquisition. One method includes operations for collecting raw global positioning system (GPS) signals for a set of positions, and storing in memory the raw GPS signals. The method further includes processing the raw GPS signals in batch mode at the computing device to obtain acquisition data for the positions, where the processing includes identifying tasks for parallel processing by a graphics processing unit (GPU), performing, by the GPU, the tasks in parallel by assigning each of the tasks to a core processor within the GPU, and combining results from performing the tasks to obtain the acquisition data. Additionally, the method includes an operation for transmitting the acquisition data to a server for calculating locations for the set positions at the server, the server storing the locations and making the locations available for location-tracking applications.

Abstract: In one embodiment, a method includes determining a received power at a receiving antenna mounted to an antenna measurement system from a transmitting antenna mounted to a device under test (DUT) in motion relative to the antenna measurement system; determining one or more first orientation parameters of the antenna measurement system; determining one or more second orientation parameters of the DUT; and determining an antenna pattern of the transmitting antenna based on the received power, the first orientation parameters, and the second orientation parameters.

Abstract: An antenna control method, communications positioning apparatus and computer storage medium is provided. The method is used in a communications positioning apparatus. The communications positioning apparatus comprises a communications antenna and a rotation device. The communications antenna comprises at least two antennas. The rotation device drives the communications antenna to rotate, wherein the method comprises: acquiring a first command, wherein the first command turns on a positioning mode; in response to the first command, acquiring angle information corresponding to the communications antenna and a beacon; in accordance with the angle information, determining corresponding rotation parameters of the rotation device, wherein the rotation parameters comprise at least a rotation direction and a rotation angle; and in accordance with the rotation parameters, controlling the rotation device to drive the rotation direction and rotation angle corresponding to the communications antenna.

Abstract: A GPS/Beidou onboard antenna with a dual output port low noise amplifier includes an antenna, an amplifier chip, a power divider, a first radio frequency switch, a second radio frequency switch, a first direct-current bias, a second direct-current bias, a first port, a second port, and a voltage selection circuit. The antenna transmits a received radio frequency signal amplified by the amplified chip to the power divider connected to the amplified chip; the radio frequency signal is divided by the power divider, in one of which the radio frequency signal goes through the first radio frequency switch, the first direct-current bias and the first port so as to be output to a receiver connected, and in the other of which the radio frequency signal goes through the second radio frequency switch, the second direct-current bias and the second port so as to be output to another receiver connected.

Abstract: Provided are a virtual anchor point-based wireless positioning method and device, and terminal.

Abstract: The present invention provides a scanning method to reduce overhead in a millimeter wave (mmWave) scanning scheme by using position information of a terminal in a mmWave system, and devices supporting same.

Abstract: A position detection system includes a mobile station, a reference station, fixed stations to, and a server. The mobile station transmits a first radio signal S1 and the reference station transmits a second radio signal S2 multiple times. Each of the fixed stations extracts a first phase difference based on the first radio signal S1 and extracts second phase differences based on the second radio signals S2. The server calculates time variations of the second phase differences based on the multiple second phase differences to calculate a third phase difference. The server cancels phase offset by the respective fixed stations using phase difference information between the mobile station and the respective fixed stations and phase difference information between the reference station and the respective fixed stations and acquires distance information between the respective fixed stations and the mobile station to calculate the position of the mobile station.

Abstract: A receiver device includes a radio frequency receiver and a processing circuit. The radio frequency receiver receives an incoming signal including a radio frequency satellite signal.

Abstract: A method and system for installing a terrestrial antenna for a satellite communication network. In the system and method, a remote unit is provided to an installation location for the terrestrial antenna. The remote unit is configured to communicate with a satellite of the satellite communication network and includes a memory in which is stored antenna information pertaining to positioning of the terrestrial antenna with respect to a virtual beam generated by the satellite. The information is accessible by a code. Thus, the antenna information is access from the memory at the installation location using the code, and the terrestrial antenna in relation to a virtual beam generated by the satellite based on the antenna information accessed from the memory at the installation location.

Abstract: A system and method of calibrating satellite signals broadcast by one or more satellites of a satellite positioning system. The system receives sensor data from one or more sensors provided on a vehicle. The system further detects satellite signals from the one or more satellites, and determines timing offsets associated with the satellite signals from each of the one or more satellites based at least in part on the sensor data. For example, the one or more sensors may include at least one of a camera or a rangefinder, and the sensor data may correspond to a three-dimensional sensor image that may be used to determine a location of the vehicle.