导航

Acta Aeronautica et Astronautica Sinica ›› 2024, Vol. 45 ›› Issue (S1): 730800.doi: 10.7527/S1000-6893.2024.30800

• Articles • Previous Articles     Next Articles

Reentry target tracking algorithm based on improved “current” statistical model

Yangchao HE, Jiong LI, Lei SHAO(), Xiangwei BU, Jinlin ZHANG, Boyang JI   

  1. Air and Missile Defense College,Air Force Engineering University,Xi’an 710051,China
  • Received:2024-06-05 Revised:2024-06-24 Accepted:2024-08-01 Online:2024-12-25 Published:2024-08-20
  • Contact: Lei SHAO E-mail:zj_shaolei_2021@163.com
  • Supported by:
    National Natural Science Foundation of China(62173339)

Abstract:

When tracking re-entry targets, the “Current” Statistical Model typically presets the acceleration variance limit based on experience. However, mismatches between this preset value and the target’s actual motion can result in significant tracking errors. To overcome this issue, this paper introduces an enhancement of the conventional acceleration variance adaptive algorithm tailored specifically for reentry targets. The acceleration increment derived from the target state filter value and its predicted counterpart is scaled, enabling the algorithm’s acceleration variance to dynamically adjust to the varying maneuvering intensity of the reentry target. The scaling coefficients for distinct maneuvering modes within this algorithm are optimized using the particle swarm optimization algorithm, which minimizes an objective function comprising both the root mean square error and the mean value. Simulation results demonstrate that the proposed algorithm can stably track the state values of reentry targets in typical maneuvering modes, exhibiting higher tracking accuracy compared to other algorithms.

Key words: “current” statistical model, acceleration variance adaptation, reentry target, scaling coefficient, particle swarm optimization (PSO) algorithm

CLC Number: