摘要
提出了一种基于最小最大决策的三站时差定位布阵优化方法,以提高系统对目标区域的整体定位精度。应用基于最小最大决策的最优化理论,建立布阵优化问题的数学模型。该模型以三站坐标为决策变量,以目标区域的最大水平定位误差最小为目标函数,然后运用基于最小最大决策的最优化算法,求解模型的最优解,并将此最优解作为三站时差定位系统的最优布阵。仿真结果与理论计算一致,验证了这种布阵优化结果的最优性。
An difference of arrival prln the ciple is used to optimization method of station layout based on minimax principle (TDOA) location system is presented. The optimization theory build a mathematical model for layout optimization. In this model for tri-station time based on minimax , the coordinates of three stations are regarded as decision variable, minimization of the maximum horizontal dilution of precision (HDOP) is regarded as objective function Then the optimal solution is studied by using optimization algorithm based on minimax principle. And the optimal solution is considered as optimal layout of the tri-station TDOA location system. Simulation results are in accordance with the theotical calculation, which verifies the optimality of the optimization method
出处
《现代防御技术》
北大核心
2011年第1期100-104,共5页
Modern Defence Technology
关键词
三站时差定位
最小最大决策
布阵优化
定位精度
tri-station time difference of arrival(TDOA) location
minimax basis
embattling opti- mization
location precision