Bounds for aircraft tracking using a hydrophone array with unknown source frequency

Author

Rice, Feng ; Gray, Doug A.

Author_Institution

Dept. of Electr. & Electron. Eng., Adelaide Univ., SA, Australia

fYear

2004

fDate

14-17 Dec. 2004

Firstpage

199

Lastpage

204

Abstract

The paper derives Cramer-Rao lower bounds (CRLBs) for airborne acoustic source tracking estimates using an array of hydrophones. The paper considers both bearing and Doppler frequency measurements in a two layer (air-sea) acoustic environment with unknown source frequency. Comparison of the CRLBs for known/unknown source frequencies is given; the CRLB for the known source frequency is lower than that for an unknown source frequency. The extended Kalman filter has been simulated and the results verified the new CRLB.

Keywords

Kalman filters; acoustic signal processing; array signal processing; hydrophones; sonar tracking; target tracking; CRLB; Cramer-Rao lower bounds; Doppler frequency; airborne acoustic sources; aircraft tracking; bearing; extended Kalman filter; hydrophone array; source frequency; tracking estimates; two layer acoustic environment; Acoustic arrays; Acoustic sensors; Aerospace electronics; Aircraft; Frequency estimation; Frequency measurement; Sensor arrays; Signal processing; Sonar equipment; Target tracking;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Sensors, Sensor Networks and Information Processing Conference, 2004. Proceedings of the 2004

Print_ISBN

0-7803-8894-1

Type

conf

DOI

10.1109/ISSNIP.2004.1417462

Filename

1417462