| 摘要: |
| 分析了航天测量船的任务特点和船载外测数据的野值特性，研究实时处理船载外测数据野值的检择方法。通过两套设备的外测数据信息横向比对消除船摇对数据检择的影响，建立了自适应权值和阈值的模型，给出了基于坐标转换和加权融合的分步式船载外测数据实时检择方法。实例数据验证结果表明所提方法可以实时有效地解决外测预处理阶段的野值检择问题。 |
| 关键词: 航天测量船 外测数据 野值实时检择 加权融合 |
| DOI： |
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| Real-time outliers detection of ship-borne outer-trajectory measurement data |
| WU Jinmei,HOU Yawei,LI Yonggang,LING Xiaodong |
| () |
| Abstract: |
| Characteristics of the missions for space TT&C ship and the outliers in the trajectory data are analyzed in order to study the method of real-time outliers detection. By cross-checking the trajectory data from two equipment,the influence of ship posture is removed. The models of adaptive weight and adaptive threshold value are built. The distributed real-time outliers detection method in ship-borne trajectory data is proposed based on coordinates transformation and weighted fusion. Computational results show that the algorithm can solve the detection problem in real time efficiently before the main data processing. |
| Key words: space TT&C ship trajectory data real-time outliers detection weighted fusion |
