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- Title
A Robust TCPHD Filter for Multi-Sensor Multitarget Tracking Based on a Gaussian–Student's t-Mixture Model.
- Authors
Wei, Shaoming; Lin, Yingbin; Wang, Jun; Zeng, Yajun; Qu, Fangrui; Zhou, Xuan; Lu, Zhuotong
- Abstract
To realize multitarget trajectory tracking under non-Gaussian heavy-tailed noise, we propose a Gaussian–Student t-mixture distribution-based trajectory cardinality probability hypothesis density filter (GSTM-TCPHD). We introduce the multi-sensor GSTM-TCPHD (MS-GSTM-TCPHD) filter to enhance tracking performance. Conventional cardinality probability hypothesis density (CPHD) filters typically assume Gaussian noise and struggle to accurately establish target trajectories when faced with heavy-tailed non-Gaussian distributions. Heavy-tailed noise leads to significant estimation errors and filter dispersion. Moreover, the exact trajectory of the target is crucial for tracking and prediction. Our proposed GSTM-TCPHD filter utilizes the GSTM distribution to model heavy-tailed noise, reducing modeling errors and generating a set of potential target trajectories. Since single sensors have a limited field of view and limited measurement information, we extend the filter to a multi-sensor scenario. To tackle the issue of data explosion from multiple sensors, we employed a greedy approximation method to assess measurements and introduced the MS-GSTM-TCPHD filter. The simulation results demonstrate that our proposed filter outperforms the CPHD/TCPHD filter and Student's t-based TCPHD filter in terms of accurately estimating the trajectories of multiple targets during tracking while also achieving improved accuracy and shorter processing time.
- Subjects
T-test (Statistics); MULTIPLE target tracking; GAUSSIAN distribution; RANDOM noise theory; INFORMATION measurement
- Publication
Remote Sensing, 2024, Vol 16, Issue 3, p506
- ISSN
2072-4292
- Publication type
Article
- DOI
10.3390/rs16030506