| 两级量测更新的粒子滤波检测前跟踪算法 |
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| 引用本文： | 陈延军,梁新华,潘泉,梁彦.两级量测更新的粒子滤波检测前跟踪算法[J].传感技术学报,2015,28(1):115-120. |
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| 作者姓名： | 陈延军 梁新华 潘泉 梁彦 |
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| 作者单位： | 1. 西安石油大学光电油气测井与检测教育部重点实验室,西安,710065;2. 西北工业大学自动化学院控制与信息研究所,西安,710072 |
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| 基金项目： | 国家自然科学基金重点项目 |
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| 摘 要： | 针对低信噪比下弱目标的检测与跟踪问题，提出了一种基于两级量测更新的粒子滤波器检测前跟踪算法。算法在粒子滤波状态更新之后，在其状态估计附近，引入卡尔曼滤波框架，进行第2级的量测更新，提高了粒子携带信息的利用程度。仿真结果表明，新算法获得了更好的检测和跟踪性能。
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| 关 键 词： | 弱小目标 检测前跟踪 粒子滤波 两级量测更新 |
A Particle Filter Track-Before-Detect Algorithm Based on Two-Stage Measurement Update |
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| CHEN Yanjun,LIANG Xinhua,PAN Quan,LIANG Yan.A Particle Filter Track-Before-Detect Algorithm Based on Two-Stage Measurement Update[J].Journal of Transduction Technology,2015,28(1):115-120. |
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| Authors: | CHEN Yanjun LIANG Xinhua PAN Quan LIANG Yan |
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| Abstract: | A particle filter track-before-detect algorithm based on two-stage measurement update was proposed,to deal with detection and tracking a dim target in low signal-to-noise ratio. After updating of the posterior state in par-ticle filter,by using Kalman filter,a second-stage measurement update is executed. This improves the degree of using of particles-contained information. Simulation results show that the new algorithm obtains better detection and tracking performance. |
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| Keywords: | dim target track-before-detect particle filter two-stage measurement update |
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