临近空间高超声速滑跃式机动目标跟踪的IMM算法

An IMM Algorithm for Tracking Near-Space Hypersonic Target with Slippage Leap Maneuvering

临近空间高超声速飞行器运动轨迹未知且运动状态多变,传统的单模型算法会与之发生失配进而影响目标跟踪精度。针对目标的滑跃式机动,提出采用基于CV-CA-正弦波模型的交互式多模型(IMM)算法对其进行跟踪,并与基于CV-CA-Singer的IMM算法、基于CV-CA-CA的IMM算法的跟踪效果进行比较。Monte Carlo仿真实验表明,基于CV-CA-正弦波模型的IMM算法对临近空间高超声速滑跃式机动目标具有较好的跟踪效果。

Because the near-space hypersonic vehicle＇s flight trajectory is unknown and its motion mode is varying during the flight, the traditional single tracking model algorithm may mismatch target＇s motion and thus decrease its tracking precision. As for the target＇s slippage leap maneuvering, an Interacting Multiple Model （IMM） algorithm based on CV model, CA model and sine wave model was proposed for tracking vehicles with such kind of maneuvering. The results of Monte Carlo simulation experiments show that： compared with the IMM algorithm based on CV-CA-Singer model and the IMM algorithm based on CV-CA- CA model, the IMM algorithm proposed here has better tracking performance to near space hypersonic target with slippage leap maneuvering.