摘要
介绍了磁航向测量系统的设计 ,分析了影响磁航向精度的误差来源及目前磁航向误差补偿算法存在的问题。在此基础上提出一种基于椭圆最佳二乘拟合的新算法 ,对现有的磁航向误差补偿算法加以改进。试验结果表明 ,该补偿算法在不以增加硬件复杂度和软件计算量为代价的前提下 ,能够很好地修正软硬磁场引起的磁航向误差 。
The design of a magnetic heading measurement system is introduced.The error sources which affect heading accuracy and the problems of current compensation algorithm are discussed.Further,a new compensation algorithm based on ellipse-specific fitting method is presented.The experimental results show that this algorithm is effective for the improvement of accuracy,integrity and practicability of the magnetic heading measurement system,without increasing the cost of hardware and the complexity of software.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2004年第4期466-469,共4页
Chinese Journal of Scientific Instrument
