针对临近空间高超声速目标飞行速度快、机动特性强和周期性滑跃的运动特点, 提出一种基于不同正弦模型(Sine模型)相交互的临近空间目标跟踪算法。首先, 针对临近空间目标所特有的周期性滑跃特性的运动轨迹, 采用基于低角速率的Sine模型有效解决现有机动目标模型对临近空间目标跟踪精度不高的问题; 然后, 针对目标滑跃式轨迹运动的特点及其参数未知的情况, 通过多个不同角速率的正弦模型相交互, 进一步提高正弦模型与临近空间目标所特有的周期滑跃式轨迹的匹配程度。仿真实验表明, 与现有的临近空间目标跟踪算法相比, 该算法具有更好的定位跟踪精度。

Considering that the near space hypersonic target has the moving characteristics of rapid flight speed, high maneuverability, and periodic sliding jump, we proposed a near space target tracking algorithm based on interaction of different Sine models. First, in view of the periodic sliding jump trajectory of the near space target, a sine model based on low angular rate is adopted to improve the accuracy of near space target tracking. Then, in view of the unknown parameters and moving characteristics of the sliding trajectory, Sine models with different angular rates are interacted, to further improve the matching degree of the model with periodic sliding jump trajectory of near space target. The simulation experiments show that, compared with the existing near space target tracking algorithms, this algorithm has higher tracking precision.