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自适应衰减记忆UKF算法在三维水下目标跟踪中的应用 被引量:3

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摘要 针对传统算法在解决纯方位目标跟踪时存在有偏、收敛速度慢或发散等不足,无迹卡尔曼滤波(UKF)虽然改善了系统线性化误差,但并没有明显解决卡尔曼滤波器容易发散的问题。在扩展卡尔曼滤波和UKF算法的基础上,提出了一种自适应衰减记忆UKF算法(AFMUKF),并将其应用于三维水下目标跟踪系统中。AFMUKF算法通过引进衰减因子加强对当前测量数据的利用,减小历史数据对滤波的影响,通过自适应因子控制状态模型扰动对滤波解的影响。理论分析和仿真结果表明,AFMUKF算法在纯方位目标跟踪中的滤波精度、稳定性和收敛时间都优于UKF算法。
作者 王满林
机构地区 海装重庆局
出处 《四川兵工学报》 CAS 2012年第5期44-47,共4页 Journal of Sichuan Ordnance
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