杂波情况下跟踪机动目标的一个重要问题就是跟踪门问题。文中研究了两种现行的跟踪门技术，模型跟踪门和集中跟踪门。提出了新的跟踪门技术，分别为模型概率加权跟踪门和两极模型概率加权跟踪门（TS-MPWG），TS—MPWG考虑了可能的模型误差，且当建立第二个波门时在模型误差变量上用到了上界。仿真里采用了一种高机动目标的基准轨迹，用RMS误差、跟踪丢失百分比和计算量比较了讨论的跟踪门技术的性能。从仿真结果可以看出，在杂波环境下用IMM—PDAF进行机动目标跟踪，TS—MPWG跟踪门技术优于其他方法。

One of the central issues in tracking a maneuvering target in clutter is related to gating.We reviewde two existing gating techniques,namely,Model based gating(MBG) and centralized Gating(CG).In addition,we proposed new gating techniques,called model probability weighed gating and two-stage model probability weighted gating,respectively.The latter takes possible model errors into account and uses an upper bound on the model error variance when establishing the sencond gate.A benchmark trajectory are used.The gating techniques are compared in terms of RMS errors,percentage of track loss and computational load,Simulation results suggest thar for maneuvering target tracking in a cluttered enviroment using IMM-PDAF,gating via the TS-MPWG method is preferable to other methods.

TN957.51