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一种基于自适应网格剖分的协方差交集融合新算法
谢卫,王前东
0
((中国西南电子技术研究所,成都610036))
摘要:
针对分布式航迹融合问题,提出了一种基于自适应网格剖分的协方差交集融合新算法。首先,自适应计算网格剖分误差上限;其次,利用网格剖分法求出局部航迹协方差椭圆的交集;最后,利用交集中心求出融合航迹估计值。通过仿真试验,该算法能自适应估计网格剖分步长上限,提高融合精度。
关键词:  航迹融合  协方差交集算法  自适应网格剖分  误差上限
DOI:
基金项目:
A new covariance intersection fusion algorithm based on adaptive grids partition method
XIE Wei,WANG Qiandong
((Southwest China Institute of Electronic Technology,Chengdu 610036,China))
Abstract:
For the fusion problem of the distributed tracks,a new covariance intersection fusion algorithm based on the adaptive grids partition arithmetic is presented.Firstly,the error upper limit of the grid partition arithmetic is computed by the adaptive method.Secondly,the intersection of the local track covariance ellipses is solved by grids partition arithmetic.Finally,the estimated value of the fusion track is calculated by the intersection center.The simulation shows the method can compute the upper limit of the grid size and improve the fusion precision.
Key words:  track fusion  covariance intersection algorithm  adaptive grids partition  error upper limit
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