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In order to inprove the tracking performances of some sensors and local nodes,the paper discusses the state estimation techniques in multilevel multisensor surveillance systems with feedback information.Based on the single sensor Kalman fitering equations

In order to inprove the tracking performances of some sensors and local nodes,the paper discusses the state estimation techniques in multilevel multisensor surveillance systems with feedback information.Based on the single sensor Kalman fitering equations

为了改善局部节点和传感器级的跟踪性能,本文研究带反馈信息的多级式多传感器系统中的状态估计技术.在给出有反馈信息情况下传感器级状态估计解的基础上,本文提出多坐标系中有反馈信息的两层集中、分布和混合估计方程.在不同笛卡尔坐标系中,本文提出了几种带反馈信息的三层多传感器系统中的航迹级融合方法,其中包括集-分估计、分-分估计和混-分估计,并以定理的形式证明有、无反馈信息情况下的两类三层状态估计是价的、最优的.仿真结果表明,在多传感器信息融合系统中引入反馈机制可以明显改善一些局部节点和传感器级的跟踪精度.