Novel Parameter Estimation Method for a Ballistic Warhead with Micromotion

• Published in: Journal of Electromagnetic Engineering and Science Vol. 20; no. 4; pp. 262 - 269
• Main Authors: Choi, Inoh, Jung, Jooho, Kim, Kyungtae, Park, Sanghong
• Format: Journal Article
• Language: English
• Published: 한국전자파학회JEES 01.10.2020; The Korean Institute of Electromagnetic Engineering and Science; 한국전자파학회
• Subjects: adaptive particle swarm optimization; ballistic missile; decoy; independent component analysis; micro-doppler frequency trajectory; 전자/정보통신공학; Decoy; Ballistic Missile; Adaptive Particle Swarm Optimization; Independent Component Analysis; Micro-Doppler Frequency Trajectory
• ISSN: 2671-7255; 2671-7263
• DOI: 10.26866/jees.2020.20.4.262

This paper proposes a novel method to estimate the parameters of a ballistic warhead with micromotion. First, the independent component analysis decomposes the echo signals received from the ballistic warhead into individual signals corresponding to each scatterer. Second, the one-dimensional micro-Doppler frequency trajectories are extracted from two-dimensional joint time-frequency images of decomposed individual signals. Finally, the adaptive particle swarm optimization is used to estimate the parameters that best match the mathematical model composed of unknown parameters to the one-dimensional micro-Doppler frequency trajectories. In simulations using a conical warhead model, the parameters for a ballistic warhead with micromotion are accurately estimated.