| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for identifying an observed space object by taking into consideration space object track information errors and observation errors of discriminated space objects.SOLUTION: A computer acquires observation information in time series regarding a position of a target object observed at a prescribed spot and present in outer space, and then calculates a track propagation range in which discriminated objects track-propagate within an observation time period during which the observation information is observed, on the basis of track information related to tracks of objects present in outer space having been discriminated respectively and error information related to track errors acquired from a storage section storing the track information and the error information, in order to identify the target object on the basis of the number of target objects contained in the track propagation range of each discriminated object within the observation time period.SELECTED DRAWING: Figure 1 |
