Tracking targets in G0 clutter via dynamic programming based track-before-detect

Author

Haichao Jiang ; Wei Yi ; Lingjiang Kong ; Xiaobo Yang ; Xiaoling Zhang

Author_Institution

Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2015

fDate

10-15 May 2015

Abstract

This paper considers the target tracking problem through the use of dynamic programming based track-before-detect (DP-TBD) in G0 clutter, where G0 clutter is used to model radar clutter returns received by small grazing angle or high resolution radars. The amplitude probability density functions of the clutter-only and target-plus-clutter cases are derived and the latter one is approximated using the sum of weighted incomplete gamma functions since no close-form solution exists. Then loglikelihood (LL) and log-likelihood ratio (LLR) are derived and used in the integration process of DP-TBD respectively. Various simulations are used to examine the performance of DP-TBD using different scoring functions.

Keywords

dynamic programming; probability; radar resolution; target tracking; DP-TBD; G0 clutter; LL); LLR; amplitude probability density functions; dynamic programming based track-before-detect; log-likelihood ratio; loglikelihood; radar clutter returns; target tracking problem; weighted incomplete gamma functions; Approximation methods; Clutter; Performance gain; Radar tracking; Target tracking; Thyristors;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference (RadarCon), 2015 IEEE

Conference_Location

Arlington, VA

Print_ISBN

978-1-4799-8231-8

Type

conf

DOI

10.1109/RADAR.2015.7131024

Filename

7131024