Systems Engineering and Electronics ›› 2025, Vol. 47 ›› Issue (5): 1507-1515.doi: 10.12305/j.issn.1001-506X.2025.05.13

• Sensors and Signal Processing • Previous Articles    

Algorithm for countering velocity gate pull-off jamming based on interacting multiple model probability data association

Yongqi YAN, Qi WANG, Fan YI   

  1. China Airborne Missile Academy, Luoyang 471009, China
  • Received:2024-02-26 Online:2025-06-11 Published:2025-06-18
  • Contact: Qi WANG

Abstract:

Pulse Doppler (PD) radar seekers face the issue of degraded tracking and guidance accuracy when confronted with highly maneuverable targets employing velocity gate pull-off (VGPO) jamming. To address this, an anti-VGPO algorithm based on interacting multiple model (IMM) probability data association (PDA) is proposed, specifically tailored for air-to-air/air-to-ground missile applications. This algorithm combines the strengths of PDA and IMM, utilizing PDA filters to process measurement information from angle and velocity channels, while incorporating an IMM framework to dynamically adapt to the target motion patterns under various maneuvering states. Simulation experiments demonstrate that the proposed anti-jamming algorithm enhances the capability to capture complex maneuvering behaviors and improves the robustness of target state estimation. Simultaneously, it effectively mitigates the impact of velocity pull-off jamming and enhances the missile guidance accuracy.

Key words: highly maneuverable target tracking, velocity gate pull-off (VGPO) jamming, interacting multiple model (IMM), probability data association (PDA)

CLC Number: 

[an error occurred while processing this directive]