FIELD: physics.
SUBSTANCE: invention relates to methods for magnetic compass field calibration, taking into account instrumental errors and mistakes due to anomalies of the Earth’s magnetic field in a particular location. Method comprises placing on the rotary platform a three-axis magnetic compass, an accelerometer and an angular velocity sensor, by measurements of which, in a circular rotation, a calibration sequence of pair values of magnetic and true azimuths is formed. Initial conditions for calibration are formed by a single application of the consumer equipment of the global navigation systems with two separated antennas in the goniometric mode. Used algorithm performs high-precision analytical (virtual) leveling of readings of the measuring sensors, thus ensuring a precise calculation of the true azimuth values, which is a calibration standard for the compass. In the practical application of the compass, the direction to the object (target) is determined by the fixed magnetic azimuth by selecting the corresponding true azimuth from the calibration sequence.
EFFECT: increased accuracy, easy implementation and expanded application of magnetic compass calibration results.
1 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD TO CALIBRATE MAGNETIC COMPASS OF PEDESTRIAN | 2012 |
|
RU2503923C1 |
| CALIBRATION METHOD OF A THREE-AXIS ELECTRONIC MAGNETIC COMPASS | 2022 |
|
RU2788825C1 |
| METHOD FOR DETERMINING WIND SPEED AND DIRECTION USING UNMANNED AIRCRAFT | 2020 |
|
RU2744772C1 |
| TOPOGEODETIC SURVEY AND TARGET DESIGNATIONS FORMATION PORTABLE EQUIPMENT KIT | 2017 |
|
RU2661676C1 |
| METHOD TO CALIBRATE ELECTRONIC MAGNETIC COMPASS | 2014 |
|
RU2572109C1 |
| SYSTEM OF PORTABLE SETS FOR AUTOMATED TARGET DESIGNATION ON THE BATTLEFIELD | 2019 |
|
RU2717138C1 |
| METHOD FOR DETERMINING OBJECT ORIENTATION PARAMETERS USING SEMI-ANALYTICAL INERTIAL NAVIGATION SYSTEM WITH GEOGRAPHICAL ORIENTATION OF FOUR-AXIS GYROPLATFORM AXES | 2022 |
|
RU2782334C1 |
| METHOD FOR CALIBRATING ELECTRONIC MAGNETIC COMPASS | 2016 |
|
RU2623192C1 |
| METHOD OF DETERMINING SPATIAL COORDINATES OF MOBILE OBJECTS AND INTEGRATED NAVIGATION SYSTEM FOR REALISING SAID METHOD | 2010 |
|
RU2443978C1 |
| METHOD OF UPGRADING ANGULAR POSITION OF AGRICULTURAL MACHINE BASED ON THE NINE-AXIS MEMS SENSOR | 2016 |
|
RU2662460C1 |
