摘要
本文应用概率论,数理统计和误差理论,结合航海实际,对天文导航误差的分布进一步作了详细的分析,提出了两个实用的天文导航误差分布数学模型;同时在航行的船舶上,以高定位精度的GPS船位为参考系,测定了260条太阳船位线,并运用所提出来的数学模型,估计了在相应条件下太阳船位线的精度参数,从而为制定统一的导航精度标准和实际应用于船上提供了理论依据.
Based on the theory of probability and mathematical statistics as well as the theory of errors, with navigation practice taken into account,a further analysis is made of the distribution of celestial navigational errors on which two pratical models are established about the distribution of celestial navigational errors. In addition, 260 solar lines of position are observed on the basis of GPS on a ship under way. From the above models,accuracy parameters of solar lines of position are estimated under this condition. Thus,a practical navigational basis is provided in order to make a u-niform standards of navigational accuracy and application.
关键词
导航误差
分布密度
分布模型
船舶
Navigational errors
Random uncertainty
Distribution density Distribution function
Distribution model