船载外测数据的实时检择方法  

Real-time Outliers Detection of Ship-borne Outer-trajectory Measurement Data

作　　者：吴金美[1] 侯亚威[1] 李永刚[1] 凌晓冬[1] 

机构地区：[1]中国卫星海上测控部,江苏江阴214431

出　　处：《电讯技术》2017年第12期1457-1463,共7页Telecommunication Engineering

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。Characteristics of the missions for space TT＆C ship and the outliers in the trajectory data are an-alyzed in order to study the method of real-time outliers detection. By cross-checking the trajectory datafrom two equipment,the influence of ship posture is removed. The models of adaptive weight and adaptivethreshold value are built. The distributed real-time outliers detection method in ship-borne trajectory datais proposed based on coordinates transformation and weighted fusion. Computational results show that thealgorithm can solve the detection problem in real time efficiently before the main data processing.

关 键 词：航天测量船 外测数据 野值实时检择 加权融合 

分 类 号：TN957.52[电子电信—信号与信息处理] V557[电子电信—信息与通信工程]