摘要
针对现行车辆导航系统中测角传感器的一些不足和磁通门传感器的特点,将磁通门传感器用于车辆导航系统当中,测量车体的航向和姿态角。并针对在使用过程中存在的问题,提出了基于正交函数的最小二乘拟合法消除车体磁场对传感器测角精度的影响和卡尔曼滤波方法补偿测角过程中的观测误差,有效地提高了磁通门传感器的测角精度。最后,通过实验,验证了2种方法的可行性,测角的最大误差仅为0.74°,达到了令人满意的导航定位效果。
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.
出处
《传感器技术》
CSCD
北大核心
2005年第7期19-21,24,共4页
Journal of Transducer Technology
