The invention discloses a method of a micro combined multi-sensor
navigation system with quick outfield calibration, and the micro combined multi-sensor
navigation system of the method comprises a two-dimensional obliquity sensor, a micro magnetic
compass, three
silicon MEMS gyros and three
silicon MEMS accelerometers. In order to improve the use precision of the micro combined multi-sensor
navigation system, the method of the invention discloses that the instant quick outfield calibration is implemented on the micro combined multi-sensor navigation
system before use; wherein, the two-dimensional obliquity sensor provides a calibration horizontal benchmark, the micro magnetic
compass provides a calibration
azimuth benchmark, the three
silicon MEMS gyros and the three silicon MEMS accelerometers measure the output of
angular velocity and accelerated velocity, and seven core error coefficients of the micro combined multi-sensor navigation
system are calibrated in a data post-
processing. The method of the micro combined multi-sensor navigation
system with quick outfield calibration is simple, convenient and efficient, overcomes the defect that the repetitiveness of each starting of the micro combined multi-sensor navigation system is bad, directly improves the precision of each use, and avoids the inconvenience that is caused by the dependence of traditional calibration methods on special high-precision laboratory equipment.