针对固定结构多模型方法(FSMM)应用于机动目标跟踪时滤波精度不高的问题
提出了一种模糊混合网格变结构多模型方法(FHGMM).FHGMM中的全体模型集由模糊基础模型网格(FBMG)和模糊修正模型网格(FAMG)组成.在此框架下
首先利用模糊推理技术对FBMG的拓扑结构进行实时调整
然后将模糊强跟踪滤波方法应用于FAMG区域中心的更新
并实时生成能够在系统模式空间自由滑动的FAMG
最后利用最优融合原理得到系统的整体估计.仿真结果表明
FHGMM与FSMM相比
目标位置、速度、加速度的滤波误差均值分别从5.5 m、1.037 m/s、0.187 m/s2减小到5.15 m、0.96 m/s、0.13 m/s2
算法单拍时间从0.02 s增加到0.037 s.
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