A simple and accurate linear solver for hyperbolic localization

Author

Wu, Haoyun ; Lu, I-Tai

Author_Institution

Air Traffic Syst. Div., Sensis Corp., DeWitt, NY, USA

Volume

3

fYear

2005

fDate

13-17 March 2005

Firstpage

1733

Abstract

A modified asymptotic linear solver is proposed to estimate emitter locations by solving the intersections of hyperbolas defined by measured time differences of arrivals. The algorithm achieves simplicity and computational efficiency by removing the nonlinearity inherent in hyperbolic localization problems. Off-line parameter optimization is required to minimize the estimation error. Simulation results show that performance of the proposed new algorithm is similar to that of a maximum-likelihood estimator in regions of interest.

Keywords

maximum likelihood estimation; parameter estimation; signal processing; computational efficiency; emitter location estimation; estimation error minimization; hyperbolic localization; maximum-likelihood estimator; modified asymptotic linear solver; parameter optimization; signal source localization; time difference of arrival; Computational modeling; Equations; Estimation error; Hardware; Iterative methods; Maximum likelihood estimation; Position measurement; Robustness; Time difference of arrival; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference, 2005 IEEE

ISSN

1525-3511

Print_ISBN

0-7803-8966-2

Type

conf

DOI

10.1109/WCNC.2005.1424774

Filename

1424774