| 基于两级采样的粒子滤波检测前跟踪算法 |
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| 引用本文： | 梁新华,潘泉,杨峰,王增福.基于两级采样的粒子滤波检测前跟踪算法[J].系统工程与电子技术,2011,33(9):1921-1926. |
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| 作者姓名： | 梁新华 潘泉 杨峰 王增福 |
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| 作者单位： | 西北工业大学自动化学院, 陕西 西安 710072 |
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| 基金项目： | 国家自然科学基金(60634030,60702066); 航空科学基金(20090853013); 西北工业大学基础研究基金(JC201015);西北工业大学“翱翔之星”计划资助课题 |
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| 摘 要： | 针对粒子滤波检测前跟踪算法中高维状态采样效率低的问题,提出了一种基于两级采样的粒子滤波检测前跟踪算法。根据状态向量中各分量对量测有无直接影响,把粒子的高维状态采样转换为两个序列低维采样,提高了粒子采样效率,进而可获得更高的检测概率和估计精度。仿真结果验证了算法的有效性。
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| 关 键 词： | 检测前跟踪 粒子滤波 两级采样 |
Particle filter track-before-detect algorithm based on two-hierarchy sampling |
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| LIANG Xin-hua,PAN Quan,YANG Feng,WANG Zeng-fu.Particle filter track-before-detect algorithm based on two-hierarchy sampling[J].System Engineering and Electronics,2011,33(9):1921-1926. |
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| Authors: | LIANG Xin-hua PAN Quan YANG Feng WANG Zeng-fu |
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| Institution: | College of Automation, Northwestern Polytechnical University, Xi’an 710072, China |
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| Abstract: | A particle filter track-before-detect(TBD) algorithm based on two-hierarchy sampling is proposed to deal with low sampling efficiency in high-dimension state space.According to each component's impacting on measurement directly or not,the higher-dimension state sampling process is converted to two successive lower-dimension state sampling processes.This algorithm improves the efficiency of state sampling for particles,and a better detection and tracking performance is obtained.Simulation results show the ef... |
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| Keywords: | track-before-detect particle filter two-hierarchy sampling |
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