仅有角测量的跟踪机动目标系统

Bearings-Only System for Tracking Maneuvering Target

仅有角测量跟踪技术在理论上和实际上受到了广泛的应用。由于以往的仅有角测量跟踪滤波器不能精确跟踪机动目标,本文提出了带有机动目标检测器的修正增益的推广卡尔曼滤波器。这种滤波器是以线性动态系统及非线性观测方程为前提而推导的。文中给出了仿真数据结果,并与准线性卡尔曼滤波器,改进型推广卡尔曼滤波器作了比较。

Passive bearings-only tracking techniques are utilized in a variety theoretical and practical application. Since conventional bearings-only tracking filters fail to track a maneuvering target, a new adaptive tracking filter is introduced by combining the modified gain extended kalman filter with the detection and estimation of abrupt changes. This filter is formulated based on the dynamics are linear and the measurernent is nonlinear. Realistic simulation data are presented to support these findings and to compare algorithm performance with respect to the improved extended kalman filter as well as the pseudo-linear filter.