关键词: 概率数据关联, 分层搜索, 联合概率数据关联, 点状多目标跟踪, 交叉运动

Abstract: This paper uses dimensionality reduction signal processing technology to get all targets’ reliable initial information based on TBD detection method in the image sequences.And in order to improve the real time quality of detection algorithm，single-frame detection technology is used：Targets tracks are not crossing in the tracking window（the area targets may appear in single frame），PDA is used to track every target individually，or else the improved hierarchical-search JPDA algorithm is used to split the target’s tracks.This paper gives the MATLAB simulation test and the results.The analysis of results shows that the combination of PDA and JPDA has good real-time quality and high-degree accuracy in tracking of multiple point targets.

Key words: Probability Data Association（PDA）, hierarchical-search, Joint Probabilistic Data Association（JPDA）, multiple point targets’ tracking, cross moving