一种JPDA的快速算法  

A Fast Algorithm for JPDA

作　　者：袁富宇[1] 石汪权 蒲勇[1] YUAN Fu-yu;SHI Wang-quan;PU Yong(Jiangsu Automation Research Institute,Lianyungang 222061,China)

机构地区：[1]江苏自动化研究所,江苏连云港222061

出　　处：《火力与指挥控制》2020年第8期166-170,共5页Fire Control & Command Control

摘　　要：为使标准JPDA算法能在实际工程中实时应用,着重在JPDA的主要计算环节进行了改进和实时性提升,提出了一种JPDA的快速算法。通过引入“关联目标类”,对确认矩阵进行降维,即把一个高维数矩阵分解成若干“相互独立”的低维矩阵。提出了一种互联概率的递归计算方法,减少拆分矩阵巨大的内存占用需求。同时还对相关波门和滤波方差计算进行了改进。仿真结果表明,快速算法比标准JPDA算法的计算时间有显著缩短,在不是“太密集”的多目标环境下具有一定的工程应用价值。In order to achieve real-time application of the standard JPDA algorithm in practical projects,a fast JPDA algorithm which redesigned the main calculation segment of JPDA thus improves the real-time performance is proposed in this paper.The dimension reduction of validation matrix is done by introducing“association target class”,a high dimension matrix is decomposed to several“mutual independence”low dimension matrix.A recursive calculation method interconnecting probabilities is given to reduce the huge memory footprint requirement of splitting matrix.Also,the relative gate and the calculation of filter error variance are improved.The simulation results show that the calculation time of the proposed fast method is apparently reduced than that of the standard JPDA algorithm,which has certain application value for project in not“too dense”multi-target environment.

关 键 词：JPDA 降维 递归计算 相关波门 滤波方差 

分 类 号：TP312[自动化与计算机技术—计算机软件与理论]