摘要
针对基于时差量测的多站无源传感器系统,提出了一种快速的多目标航迹起始算法。该算法首先利用位置误差门准则对大量候选关联进行预选,然后采用多维分配方法来解决量测数据的关联问题,并求出候选关联对应的定位解;在此基础上,应用两点差分方法分别对多目标进行航迹起始,推导了相应的初始状态和误差协方差矩阵。仿真结果表明,该算法能够快速起始多目标的航迹,并为航迹提供精确可靠的初始状态估计值。
A fast multi-target track initialization algorithm was proposed based on multi-static passive sensor system using time difference of arrival measurements.The position error gate rule was used to eliminate a great deal of redundant association pairs,and S-D assignment was adopted to solve the issue of measurement association.Then the target according to the candidate association was located.On which basis,the two-point differencing algorithm was used to initialize the track of each target,and the initial state and covariance matrix were deduced.Simulation results showed that the algorithm can initialize multi-target track quickly and offer reliable initial state estimation.
出处
《电光与控制》
北大核心
2010年第11期1-4,共4页
Electronics Optics & Control
基金
国家自然科学基金(60702015)
关键词
多目标跟踪
航迹起始
到达时间差
S-D分配
两点差分
multi-target tracking
track initialization
TDOA
S-D assignment
two-point differencing
