Detection and Tracking of Coordinated Groups

• Published in: IEEE transactions on aerospace and electronic systems Vol. 47; no. 1; pp. 472 - 502
• Main Authors: Sze Kim Pang, Li, Jack, Godsill, Simon J
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.01.2011; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Algorithms; Birds; Computer simulation; Differential equations; Dynamics; Inference; Joints; Lead; Markov analysis; Mathematical model; Mathematical models; Monte Carlo methods; Radar data; Radar tracking; Studies; Target tracking; Tracking
• ISSN: 0018-9251; 1557-9603
• DOI: 10.1109/TAES.2011.5705687

In this paper, we describe models and algorithms for detection and tracking of group and individual targets. We develop two novel group dynamical models within a continuous time setting using stochastic differential equations (SDE) that aim to mimic behavioural properties of groups. We also describe a possible way of modeling interactions between closely spaced targets using repulsive forces. These can be combined with a group structure transition model to create realistic evolving group models. We use a Markov chain Monte Carlo (MCMC)-particles algorithm to perform sequential inference. Computer simulations demonstrate the ability of the algorithm to detect and track targets within groups as well as to infer the correct group structure over time. The group tracking model is also applied to two sets of real ground moving target indicator (GMTI) radar data with group targets. The results show significant improvement in tracking accuracy over tracking without group models.