基于自适应信息融合的舰船组合导航系统研究

The Research of Ship Integrated Navigation System Based on Adaptive Information Fusion

此文针对组合导航系统在舰船运动中出现的局部滤波器精度下降和滤波发散问题,提出新的自适应信息融合方法,给出滤波结果可信度定义和评价方法,并在此基础上进行信息分配保持全局估计精度和控制发散。

According to the decrease and divergence problems of the local filter's accuracy may be occur when the ship moves, this paper presents a adaptive information fusion method based on fuzzy assessment. The definition of reliability degree of the estimation results of filters and its fuzzy assessment method are given, and based on it, information distribution and divergence control are applied to keep the global estimation accuracy.