COARSE DETERMINATION FOR THE HYBRID NAVIGATION SOLUTION BASED ON MAGNETIC-CALIBRATED MEASUREMENTS Russian patent published in 2018 - IPC G01C21/08

Abstract RU 2673504 C2

FIELD: instrument engineering.

SUBSTANCE: invention relates to the field of navigational instrument making and can find its application in hybrid navigation systems, which use magnetometers. Method comprises receiving signals from a variety of satellites of the global navigation satellite system (GNSS), obtaining three-dimensional inertial measurements from one or more inertial sensors and obtaining three-dimensional magnetic measurements from one or several magnetometers. Then, the magnetic displacement states for three-dimensional magnetic measurements are estimated by means of the magnetic measurement calibration filter, which uses three-dimensional inertial measurements, data from the signals from a variety of GNSS satellites, and three-dimensional magnetic measurements. After that, the artificial course is calculated based on the magnetic displacement states. Main navigation solution can be evaluated by means of the basic navigation filter using three-dimensional inertial measurements, data from signals from a variety of GNSS satellites and from the artificial course.

EFFECT: broader functional capabilities.

20 cl, 3 dwg

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RU 2 673 504 C2

Authors

Kana Zdenek

Dunik Jindrich

Sotak Milos

Dates

2018-11-27—Published

2015-11-05—Filed