Title :
Track-to-track fusion with missing information: Empirical study: Tracking a variety of target types
Author :
Silbert, Mark E. ; Rea, Charles A.
Author_Institution :
Naval Air Syst. Command, Patuxent River, MD, USA
Abstract :
Copious research has been done comparing various track-to-track methods via their calculated (theoretical) covariance. What has not been studied is how these various track-to-track methods actually perform (i.e., their empirical variance) against a variety of target types. This paper will compare best of breed, centralized measurement fusion, track to track (TTT) without memory (with and without cross correlation), information matrix fusion, and TTT with memory to see which method empirically has the lowest covariance against a variety of targets. These targets are a discrete white noise acceleration, constant velocity, and constant acceleration This study will further investigate how a track-to-track fusion center handles missing information, particularly estimating the process noise values (σα) for the sensor trackers and what happens to the relative quality of the estimates as the variance assumed at the fusion center is mismatched with those from the sensor trackers.
Keywords :
covariance matrices; sensor fusion; target tracking; centralized measurement fusion; constant acceleration; constant velocity; cross correlation; discrete white noise acceleration; empirical variance; fusion center; information matrix fusion; process noise values estimation; sensor trackers; target tracking; track to track without memory; track-to-track fusion; Acceleration; Correlation; Reactive power; Target tracking; White noise; covariance consistency; empirical comparison analysis; track-to-track fusion; tracking a variety of target types;
Conference_Titel :
Information Fusion (FUSION), 2012 15th International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-0417-7
Electronic_ISBN :
978-0-9824438-4-2