雷达科学与技术2013，Vol.11Issue(3)：305-310,6.DOI:10.3969/j.issn.1672-2337.2013.03.016
一种新的基于似然比的弱目标TBD方法
A Novel Track-Before-Detect Method for Weak Target Based on Likelihood Ratio
摘要
Abstract
In the current particle filter tracking before detection algorithm(PF-TBD),the target is usually detected by cumulative likelihood ratio.It is unable to detect the disappearance of the target rapidly because of the cumulative effect.A novel track-before-detect method based on likelihood ratio is proposed to solve this problem.The proposed method utilizes single-moment likelihood ratio to mark target with presence or absence,and the final test result is obtained using several continuous marks.Simulation results demonstrate that the proposed method is able to lessen detecting delay when target appears and can detect the disappearance of the target effectively.关键词
弱目标/检测前跟踪(TBD)/似然比/粒子滤波(PF)Key words
weak target/ track-before-detect(TBD)/ likelihood ratio/ particle filter(PF)分类
信息技术与安全科学引用本文复制引用
邹丁秋,程婷,何子述..一种新的基于似然比的弱目标TBD方法[J].雷达科学与技术,2013,11(3):305-310,6.基金项目
国家自然科学基金(No.61032010,61101171) （No.61032010,61101171）
