密集杂波环境下确定性退火DA-HPMHT跟踪算法  

A Deterministic Annealing HPMHT Tracking Algorithm Suitable for Dense Clutter Environment

作　　者：李晓花[1] 李亚安[1] 陈晓[1] 戴淼[1] 

机构地区：[1]西北工业大学航海学院,陕西西安710072

出　　处：《西北工业大学学报》2015年第3期432-437,共6页Journal of Northwestern Polytechnical University

基　　金：国家自然科学基金(51179157;51179158;51409214)资助

摘　　要：在对Homothetic概率多假设跟踪(probabilistic multiple hypothesis tracking,PMHT)和确定性退火(deterministic annealing,DA)技术深入研究的基础上,结合扩展卡尔曼算法,提出了DA-HPMHT算法。针对密集杂波环境对多目标跟踪性能的影响,给出了DA-HPMHT算法在匀速直线交叉运动目标,机动转弯目标和匀速直线邻近目标的仿真实验,并同HPMHT算法进行了仿真比较。仿真结果表明,在初始值与真实值相差较大的情况下,HPMHT算法跟踪性能下降,而DA-HPMHT算法仍能保持较好的跟踪精度,并且满足实时性要求,证明DA-HPMHT算法对密集杂波环境下多机动目标跟踪的有效性。Based on the principle of the homothetic probabilistic multiple hypothesis tracking （ HPMHT） , the deterministic annealing （ DA） approach, and the extended Kalman filter, we propose a new multitarget tracking algorithm DAHPMHT. We compare and analyze the estimation accuracy of DAHPMHT in simulation experiments for uniform linear crossover movement targets, maneuvering turning crossover targets and uniform linear closely spaced targets under the dense clutter environment. The experimental results demonstrate HPMHT algorithm′s performance degrades when the initial value differs from its real value, but the DAHPMHT algorithm still has good tracking accuracy and can meet real time requirement at the same time;this confirms the effectiveness of the DAHPMHT in multiple maneuvering target tracking under dense clutter environment.

关 键 词：概率多假设跟踪 确定性退火 多目标跟踪 扩展卡尔曼算法 密集杂波环境 

分 类 号：TN957[电子电信—信号与信息处理]