Systems Engineering and Electronics ›› 2022, Vol. 44 ›› Issue (2): 628-636.doi: 10.12305/j.issn.1001-506X.2022.02.33

• Guidance, Navigation and Control • Previous Articles     Next Articles

3D tracking algorithm of hypersonic gliding target based on adaptive filtering

Junbiao ZHANG1,*, Jiajun XIONG2, Xuhui LAN2, Fan LI1,3, Wenjian LIU1, Qiushi XI2   

  1. 1. Department of Graduate, Air Force Early Warning Academy, Wuhan 430019, China
    2. The Fourth Department, Air Force Early Warning Academy, Wuhan 430019, China
    3. Unit 95980 of the PLA, Xiangyang 441000, China
  • Received:2020-06-15 Online:2022-02-18 Published:2022-02-24
  • Contact: Junbiao ZHANG

Abstract:

In order to solve the problem that the maneuvering mode of hypersonic gliding vehicle is complex and the single kinematic model is difficult to complete the three-dimensional tracking, a three-dimensional tracking method is proposed. The maneuvering trajectory of the vehicle is divided into longitudinal and lateral trajectory. According to the maneuvering characteristics of the vehicle, the acceleration is modeled as a second-order time autocorrelation stochastic process with zero mean in the longitudinal direction, and the Singer+constant acceleration interactive multiple model (IMM) is used in the lateral direction. The unbiased measurement transformation is introduced to transform the radar observation model in spherical coordinate system to Cartesian coordinate system, which avoids the nonlinear filtering of the model. Finally, based on the existing Kalman filtering, an adaptive Kalman filtering algorithm based on multiple fading factors is designed to enhance the adaptive tracking ability of the model for strong maneuvers. The simulation results show that the algorithm can keep better stability and tracking accuracy when tracking hypersonic gliding target.

Key words: near space, hypersonic vehicle, three dinensional (3D) tracking, filtering algorithm, interactive multiple model (IMM)

CLC Number: 

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