针对传统单模型不能有效跟踪临近空间高超声速目标的问题,提出了一种ModifiedCoordinateTurn(MCT)跟踪模型。根据临近空间高超声速目标在巡航段跳跃飞行的特点,假设目标角速度为一阶时间相关过程,借助“当前”统计模型的思想,对目标角速度进行实时修正,结合扩展卡尔曼滤波算法,实现对目标的稳定跟踪。MonteCarlo仿真结果表明,新模型能够实现对临近空间高超声速目标在巡航段跳跃飞行的准确跟踪,并且跟踪性能稳定,具有较强的实用性。

In view of the problem that the traditional single model can not track the near space hypersonic targets effectively, a modified coordinate turn (MCT) model was proposed. According to the characteristics of near space hypersonic targets while skip flying in cruise segment, assuming that the target angular velocity for singer process, with the help of the thought of "current" statistical model, revise the target angular velocity for real-time, combine with the extended Calman filtering algorithm to achieve stable tracking. The Monte Carlo simulation results show that the new model can achieve tracking skip flying near space hypersonic target accurately in the cruise segment, and with more stability of the tracking performance and stronger practicality.