一种基于搜索式扩大关联门的IMM-PDA算法  

An IMM-PDA Based on Enlarged Gate by Searching

作　　者：李亚星[1] 程婷[1] 

机构地区：[1]电子科技大学电子工程学院,四川成都611731

出　　处：《电子质量》2011年第9期45-48,共4页Electronics Quality

基　　金：总装预研基金(G02010201PJ10DZ0201);中央高校基本科研业务费项目(ZYGX2009J023)

摘　　要：针对目标机动时IMM-PDA算法容易发生失跟的问题,提出一种基于搜索式扩大关联门的IMM-PDA算法。该算法以传统IMM-PDA算法为基础,当IMM-PDA的关联门内没有检测到有效量测时,采用逐步搜索的方式扩大原关联门,重新检测有效量测。仿真结果表明,与传统IMM-PDA算法相比,文中算法能有效减少目标失跟,并提供更好的跟踪精度。conventional IMM-PDA will easily lose the target when it begins manevering;an IMM.PDA based on enlarged gate by searching is proposed.The proposed algorithm is based on conventional tMM-PDA where the association gate is enlarged step by step through searching to detect valid measurements,when there is no measurement in the gate of corlventional results show that,compared with convetional IMM-PDA,the proposed algorithm can reduce target lose rate efficiently and offer better tracking precision.

关 键 词：机动目标跟踪 IMM-PDA 扩大关联门 

分 类 号：TN953[电子电信—信号与信息处理]