摘要
光学设备测量数据因精度高而一般成为雷达精度校飞、实测数据固定偏差估计的比较标准。然而,受各种因素干扰,光测数据同样地包含一定误差,其中光、电波折射误差是其最主要误差之一。因此,如何精确修正测量信号的大气折射误差,往往成为影响数据处理精度的主要因素。首先给出了利用测角信息交会计算目标坐标的方法,并从大气模型入手,针对光学测量数据的特点,建立了精确的光波折射误差修正模型,并给出了在线算法。仿真证明,该方法在保证计算速度前提下,可极大地提高数据处理的精度。
The best precise observe data of optics is a standard of compare to estimate the constant error of radar in accuracy check flying and project.However, because the effect of disturbs the optics observe data also include many errors. And the refraction error is a main error source among the factors effect measure data accuracy.So how to exact the error will determine the processing precision.From the characteristic of observe data and atmosphere,an exact error model and on-line algorithm is proposed in the paper.The simulation demonstrates the method can improve the compute accuracy and speed greatly.
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2003年第6期584-587,共4页
Journal of Astronautics
基金
国家自然科学基金资助项目(60175015)
关键词
光学测量
精确模型
折射误差修正
Optics measurement
Exact model
Refraction error correcting
