Multiple-target tracking property is analyzed in quantity based on the true value of the targets which is obtained by GPS.
针对全球定位系统（GPS）提供的目标测量真值，对多目标跟踪性能进行了定量分析。
As the key problem of multiple target tracking, track initiation technology has received extensive attention and study.
航迹起始做为多目标跟踪技术中的关键问题，得到了广泛的重视和研究。
Afterwards a fast algorithm for track initiation and data association in multiple target tracking is obtained.
给出了多目标跟踪起始和数据关联的快速算法。
Data association accompanied by track initiation in multiple target tracking is very difficult.
包含有新目标跟踪起始的数据关联问题是多目标跟踪算法研究中的一个难点。
Data association accompanied by track initiation in multiple target tracking is very difficult.
包含有新目标跟踪起始的数据关联问题是多目标跟踪算法研究中的一个难点。
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