WANG Huai-guang, SHI Zhi-yong, LI Guo-zhang, et al. Application research of fluxgate sensor in vehicle navigation system[J]. 2005, (7): 19-21+24. DOI: 10.13873/j.1000-97872005.07.007.
The popular measuring sensors have some shortcomings
but fluxgate sensor compensates these
and it is applied to measure course and pose angle in vehicle navigation system. There are two ways that are put forward to solve the questions in course of using
the one is the vertical-function minimum two-multiply fitting criterion to eliminate the influence of vehicle magnetic field
the second is Kalman filter to compensate the observation error
which improve the precision effectively. At last
the maximal error is only 0.74°
the two ways are feasible and the ending is satisfied through validating by experiment.