基于改进“当前”统计模型的转弯机动跟踪算法  

Algorithm based on modified current statistic mode for turn maneuver

作　　者：黄伟平[1] 徐毓[2] 王杰[3] 

机构地区：[1]空军雷达学院研究生管理大队 [2]空军雷达学院科研部 [3]95174部队

出　　处：《控制与决策》2011年第9期1412-1416,共5页Control and Decision

基　　金：国家地;县级海防管理监控中心系统基金项目(KJZ06088)

摘　　要：针对转弯机动目标跟踪,提出一种改进的"当前"统计模型对角速度进行估计.该模型在当前统计(CS)模型的基础上,通过加权一个以新息方差之迹为参数的活化函数,对加速度方差和机动频率进行自适应处理,经滤波获得目标速度方向角.然后,将角度滤波获得的方向角度、角速度、角加速度作为曲线模型的输入,实时跟踪机动状态.新模型可准确估计目标的角速度,算法可显著提高转弯机动目标的跟踪精度,仿真实验验证了算法的有效性.An improved angular velocity estimation mode for turn maneuver is proposed. The model is based on modified current statistical（CS） model, in which an activate function whose argument is the innovation variance＇s trace is introduced. The activate factor is used to dispose the error covariance of the acceleration and the frequency of the maneuver. The direction angular is obtained by the filter. Then the curvilinear model can track the turn maneuver neatly based on the direction angular, the angular velocity and the tangential acceleration calculated by the angular output of the new model. The angular velocity can be estimated by the proposed model, and the tracking precision of turn maneuver is improved significantly. Simulation experiment shows the effectiveness of the proposed algorithm.

关 键 词：角加速度 当前统计模型 机动跟踪 活化函数 曲线模型 

分 类 号：TN911.72[电子电信—通信与信息系统]