A sequential extension of the unified MAP track estimation method

Author

Zarnich, Robert E. ; Bell, Kristine L. ; Van Trees, Harry L.

Author_Institution

Sch. of Inf. Technol. & Eng., George Mason Univ., Fairfax, VA, USA

fYear

2000

fDate

2000

Firstpage

97

Lastpage

101

Abstract

A maximum a-posteriori (MAP) estimator for multitarget tracking based on sensor array data has been derived for temporally uncorrelated signals and uncorrelated contact tracks. This batch estimator is an iterative algorithm employing a nested pair of expectation maximization (EM) based algorithms. The `hidden data´ are direction-of-arrival estimates of synthetic signal estimates, each conditioned on prior track distributions. In this paper, the batch method is extended to operate in a sequential manner by defining a moving batch window and stride for processing the incoming data. Comparisons to the full batch method are presented and discussed

Keywords

array signal processing; direction-of-arrival estimation; iterative methods; optimisation; sequential estimation; target tracking; DOA estimation; batch estimator; direction-of-arrival estimates; expectation maximization based algorithms; iterative algorithm; maximum a-posteriori estimator; moving batch window; multitarget tracking; sensor array data; sequential extension; synthetic signal estimates; temporally uncorrelated signals; track distribution; uncorrelated contact tracks; unified MAP track estimation method; Data engineering; Direction of arrival estimation; Geometry; Iterative algorithms; Maximum a posteriori estimation; Sensor arrays; Sensor systems; State estimation; State-space methods; Target tracking;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensor Array and Multichannel Signal Processing Workshop. 2000. Proceedings of the 2000 IEEE

Conference_Location

Cambridge, MA

Print_ISBN

0-7803-6339-6

Type

conf

DOI

10.1109/SAM.2000.877976

Filename

877976