GPS carrier-phase based relative navigation

摘要

Systems and methods for navigation of a vehicle may carry out one or more operations including, but not limited to: obtaining coordinates of a vector connecting two points in space using carrier phase measurements from global navigation system satellites (GNSS); setting the vector as an intended path of a vehicle; storing carrier phase signals from a GNSS receiver received at a first position of the vehicle; receiving carrier phase signals from a GNSS receiver at a second position of the vehicle; and determining a position of the vehicle relative to the intended path from one or more carrier phase signals received at the second position and one or more stored carrier phase signals received at the first position.

主权项

1. A system comprising:
at least one of a ground tracking radar system or an inertial guidance system; a global navigation system satellite (GNSS) signal receiver; a directional control system including control motors; and at least one computing device in communication with the directional control system, the at least one computing device programmed for:
determining a first relative position vector connecting two points in space occupied by a vehicle at different times from at least one of ground tracking radar data or inertial guidance system data;determining a second relative position vector connecting the two points in space using GNSS carrier phase measurements obtained at the two points;comparing the first relative position vector and the second relative position vector to determine one or more coordinate differences between the first vector and the second vector;providing, via a communication link, at least one notification indicative of the one or more coordinate differences between the first relative position vector and the second relative position vector to one of the at least one computing device and a display of the vehicle for a directional adjustment by the directional control system based on the one or more coordinate differences; andcontrolling, via the directional control system, upon receipt of one or more control signals to perform the directional adjustment to redirect the vehicle to the first relative position vector thereby minimizing the one or more coordinate differences.