A method for GNSS-based localization of a vehicle includes receiving a first set of satellite orbit data, using the first set of satellite orbit data when determining a first localization result, receiving a second set of satellite orbit data, checking a plausibility of the first set of satellite orbit data using the second set of satellite orbit data, and manipulating the first set of satellite orbit data and/or the first localization result and/or a localization filter when the plausibility check was not successful.

A method, apparatus and computer program product are provided to correct a predicted value of the position of a navigation satellite and/or a clock offset of a clock of the navigation satellite. In the context of a method implemented by a client computing device, a prediction is received, from a serving computing device, that includes at least one predicted value for the position of the navigation satellite at one or more points in time within a prediction interval. The method also determines, with the client computing device, such as an Internet of Things device, at least one error component and, based thereupon, corrects the prediction received from the serving computing device by correction at least one predicted value for one or more of: (i) the position of the navigation satellite or (ii) the clock offset for the clock of the navigation satellite.

A position fix identifying a geographic location of a receiver is received. The position fix was generated using signals received at the receiver from respective high-altitude signal sources (such as satellites). Imagery of a geographic area that includes the geographic location is also received. The imagery is automatically processed to determine whether one or more of the high-altitude signal sources were occluded from the geographic location when the position fix was generated. In response to determining that one or more of the high-altitude signal sources were occluded from the geographic location when the position fix was generated, the position fix is identified as being potentially erroneous.

A method includes processing reference data and positioning signals to determine a first position of a rover station for a first instance in time. A first pseudo-range measurement of a frequency and a first carrier phase measurement of the frequency are calculated. The method also includes detecting an inability to receive the reference data and generating virtual reference data based on the reference data, the position of the rover station, the first pseudo-range measurement, and the first carrier phase measurement. A second pseudo-range measurement of the frequency and a second carrier phase measurement of the frequency are calculated. The method further includes processing the virtual reference data, the positioning signals, the second pseudo-range measurement and the second carrier phase measurement, based on the detected inability to receive the reference data, to determine a second position of the rover station for a second instance in time.

A method includes processing reference data and positioning signals to determine a first position of a rover station for a first instance in time. A first pseudo-range measurement of a frequency and a first carrier phase measurement of the frequency are calculated. The method also includes detecting an inability to receive the reference data and generating virtual reference data based on the reference data, the position of the rover station, the first pseudo-range measurement, and the first carrier phase measurement. A second pseudo-range measurement of the frequency and a second carrier phase measurement of the frequency are calculated. The method further includes processing the virtual reference data, the positioning signals, the second pseudo-range measurement and the second carrier phase measurement, based on the detected inability to receive the reference data, to determine a second position of the rover station for a second instance in time.

A method includes receiving a flight plan of an aircraft comprising one or more contingency routes, determining a plurality of possible trajectories of the aircraft based on the flight plan and the one or more contingency routes, identifying navigation data associated with one or more locations along each of the possible trajectories, and transmitting the navigation data to the aircraft.

A method includes receiving a flight plan of an aircraft comprising one or more contingency routes, determining a plurality of possible trajectories of the aircraft based on the flight plan and the one or more contingency routes, identifying navigation data associated with one or more locations along each of the possible trajectories, and transmitting the navigation data to the aircraft.

Systems and methods for displaying connectivity strength for vehicles are disclosed. For instance, the method may include receiving, from an off-board station, connectivity data relating to a connected vehicle, the connectivity data having been received from a plurality of connected vehicles other than the connected vehicle and selected based on relevance to the connected vehicle; identifying a portion of the received connectivity data to display on the connected vehicle; generating a display of the identified portion of the received connectivity data; and displaying on a display unit of the connected vehicle, the generated display of the identified portion of the received connectivity data. The method may also include generating and displaying an updated route based on the received connectivity data.

A position fix identifying a geographic location of a receiver is received. The position fix was generated using signals received at the receiver from respective high-altitude signal sources (such as satellites). Imagery of a geographic area that includes the geographic location is also received. The imagery is automatically processed to determine whether one or more of the high-altitude signal sources were occluded from the geographic location when the position fix was generated. In response to determining that one or more of the high-altitude signal sources were occluded from the geographic location when the position fix was generated, the position fix is identified as being potentially erroneous.

The application relates to a wireless mesh communication system (100) that comprises a plurality of radio nodes (102, 104, 106). Each of the plurality of radio nodes is configured to provide a bi-directional radio communication with other radio node (102, 104, 106) of the system and to obtain (213, 216, 224) an assisted GNSS (A-GNSS) assistance data used in a global navigation satellite system (GNSS) positioning. Also, at least one (102, 104) of the radio nodes indicates (230) to other radio nodes (102, 104, 106) of the system that the A-GNSS assistance data is available and transmissible on request, if the at least one of the radio nodes has this A-GNSS assistance data.