Tracking initially unresolved thrusting objects in 3D using a single stationary optical sensor

Qin Lu; Yaakov Bar-Shalom; Peter Willett; Karl Granström; R. Ben-Dov; B. Milgrom

doi:10.1117/12.2262832

2 May 2017 Tracking initially unresolved thrusting objects in 3D using a single stationary optical sensor

Qin Lu, Yaakov Bar-Shalom, Peter Willett, Karl Granström, R. Ben-Dov, B. Milgrom

Author Affiliations +

Proceedings Volume 10200, Signal Processing, Sensor/Information Fusion, and Target Recognition XXVI; 1020002 (2017) https://doi.org/10.1117/12.2262832
Event: SPIE Defense + Security, 2017, Anaheim, CA, United States

Abstract

This paper considers the problem of estimating the 3D states of a salvo of thrusting/ballistic endo-atmospheric objects using 2D Cartesian measurements from the focal plane array (FPA) of a single fixed optical sensor. Since the initial separations in the FPA are smaller than the resolution of the sensor, this results in merged measurements in the FPA, compounding the usual false-alarm and missed-detection uncertainty. We present a two-step methodology. First, we assume a Wiener process acceleration (WPA) model for the motion of the images of the projectiles in the optical sensor’s FPA. We model the merged measurements with increased variance, and thence employ a multi-Bernoulli (MB) filter using the 2D measurements in the FPA. Second, using the set of associated measurements for each confirmed MB track, we formulate a parameter estimation problem, whose maximum likelihood estimate can be obtained via numerical search and can be used for impact point prediction. Simulation results illustrate the performance of the proposed method.

Conference Presentation

Citation Download Citation

Qin Lu, Yaakov Bar-Shalom, Peter Willett, Karl Granström, R. Ben-Dov, and B. Milgrom "Tracking initially unresolved thrusting objects in 3D using a single stationary optical sensor", Proc. SPIE 10200, Signal Processing, Sensor/Information Fusion, and Target Recognition XXVI, 1020002 (2 May 2017); https://doi.org/10.1117/12.2262832

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE