NAVIGATION SATELLITE SYSTEM-BASED POSITIONING METHOD AND SYSTEM USING VELOCITY-CHANGE-RELATED AIDING DATA

Abstract: some embodiments of the invention pertain to methods carried out by a navigation satellite system (nss) receiver for estimating parameters useful to determine a position. the receiver observes signals from satellites. the method comprises an estimator () using state variables and computing values of its state variables based on: first nss signals observed by the nss receiver, and/or information derived therefrom. the estimator uses a subset of state variables comprising six state variables representing an estimated position and estimated velocity. the subset is recurrently updated under a constant-velocity assumption and an estimated velocity change and time-integrated velocity change are added thereto. the estimated velocity change and time-integrated velocity change are based on data from a sensor for determining a change in velocity. systems and vehicles using such a method are also disclosed.

Inventor(s): Lorenz Görcke

CPC Classification: G01S19/05 (RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES)

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