About 45 results
https://drivepatents.com/patents/1392863 · 25 Feb 2026
The present invention relates to a MEMS gyrocompass, a method performed by the MEMS gyrocompass and a computer program product. The MEMS gyrocompass mitigates systematic error in determination of a north angle. The MEMS gyrocompass comprises at least one M...
https://drivepatents.com/patents/1391774 · 13 Aug 2025
A heading and attitude correction method and a heading and attitude correction system (100) are provided. The method includes: obtaining attitude data in a period of time; performing a linear regression analysis on the attitude data and time points in the ...
https://drivepatents.com/patents/1397756 · 16 Apr 2025
Ce procédé comporte une première étape (41) d'obtention de premières valeurs de coefficients de compensation de défauts magnétiques du magnétomètre, et une deuxième étape d'affinage en vol comprenant : - a) une acquisition (42) d'une pluralité ...
https://drivepatents.com/patents/1372528 · 9 Jan 2025
A calibration method for an electronic compass includes: acquiring an initial sphere center coordinate of a current calibration; acquiring a preset number of magnetic field data collected by a magnetic sensor; determining a target magnetic field interferen...
https://drivepatents.com/patents/965690 · 31 Dec 2014
An offset estimation device (40) includes a rotation axis calculation part and an offset estimation part. The rotation axis calculation part is configured to: obtain multiple sets of magnetic data detected by the magnetic sensor (20) and multiple sets of a...
https://drivepatents.com/patents/969987 · 17 Sep 2014
A method of calibrating a vehicle's heading system, such as the attitude heading and reference system of an aircraft or the heading system of a ship, positioned along the Earth's surface involves obtaining both actual and theoretical readings for the magne...
https://drivepatents.com/patents/974880 · 14 May 2014
A method of indicating an interference magnetic field at an electronic device (100) includes: displaying a first arrow (206) indicating a direction of magnetic north on a display (112) of the electronic device, the direction of the first arrow (206) correc...
https://drivepatents.com/patents/977727 · 5 Mar 2014
Disclosed are methods and systems for stabilizing orientation values of an electronic device, the orientation values representing an orientation of the electronic device, the method comprising: obtaining first sensor readings from a first sensor; obtaining...
https://drivepatents.com/patents/979111 · 29 Jan 2014
The embodiments of the present invention disclose a method for correcting an orientation of a magnetometer and a magnetometer, and relate to the field of positioning technologies and solve the problem that in the process of correcting an orientation of a m...
https://drivepatents.com/patents/979608 · 15 Jan 2014
A system comprises a plurality of reference navigation systems, each reference navigation system configured to generate a respective reference navigation solution. The system also comprises a test navigation system, the test navigation system configured to...