Showing papers on "Inertial reference unit published in 2020"
Patent•
11 Jun 2020
TL;DR: In this paper, a method, apparatus, and system for adjusting inertial reference data is presented, where the inertial data is received from an inertial unit in an aircraft and the replacement magnetic navigation data is determined for the aircraft at a current position of the aircraft.
Abstract: A method, apparatus, and system for adjusting inertial reference data. The inertial reference data is received from an inertial reference unit in an aircraft. Replacement magnetic navigation data is determined for the aircraft at a current position of the aircraft. Magnetic navigation data in the inertial reference data is replaced with the replacement magnetic navigation data for the aircraft to form adjusted inertial reference data. The adjusted inertial reference data is sent to a number of aircraft systems that use the adjusted inertial reference data during operation of the aircraft.
1 citations
Patent•
08 Oct 2020
TL;DR: In this article, an inertial reference unit (URI) consisting of a first measurement path (V1) and a second measurement path is proposed to synchronize the measurements of the first and second inertial measurement units.
Abstract: The invention relates to an inertial reference unit (URI) comprising: - a first measurement path (V1) comprising: - a first high-performance inertial measurement unit (UMI1) comprising first means for measuring specific forces and first means for measuring angular velocity, - a first calculation unit (CPU1) capable of performing calculations of pure inertial data based on measurements by the first measurement unit; - a second measurement path (V2) comprising: - a second inertial measurement unit (UMI2) with lower performance than the first inertial measurement unit (UMI1) and comprising second means for measuring specific forces and second means for measuring angular velocity; - a second calculation unit (CPU2) capable of performing calculations of pure inertial data based on measurements by the second measurement unit; - an integrity-checking function (CTR) capable of implementing a method for checking the integrity of the data from the first measurement path (V1) based on the data provided by the second measurement path (V2); - means for synchronising the measurements of the first and second inertial measurement units; the first and second inertial measurement units being rigidly mechanically mounted in the inertial reference unit (URI).