Data preprocessing method in multi-sensor target tracking

The observed data of the same target, which come from different types of sensors with different precisions distributed in different platforms, differ greatly. Before tracking of multi-sensor targets, the data must be processed. Aiming at this problem, the equations for spatial-temporal data unification are presented, which are got by building referenced earth center space coordinate system and unifying sampling interval. And the basic problem of multi-sensor target tracking is solved. The methed can be widely used. The technique based on this method has been applied to practice and obtained good results.