Near-field source localisation using bottom-mounted linear sensor array in multipath environment

Author

Lee, S.H. ; Ryu, C.S. ; Lee, K.K.

Author_Institution

Div. of Comput. & Multimedia Eng., Uiduk Univ., Gyeongju, South Korea

Volume

149

Issue

4

fYear

2002

fDate

8/1/2002 12:00:00 AM

Firstpage

202

Lastpage

206

Abstract

The paper presents a 3-D near-field source localisation algorithm using a bottom mounted linear sensor array for a multipath environment. The proposed algorithm utilises the signals from different paths plus a simple linear sensor array to estimate the 3-D location of a source, whereas conventional 3-D localisation algorithms require a 2-D array of sensors. The conic angles of the source signal are different for each path and each path signal has a different arrival time. As such, equations are derived for the source location, time difference of arrivals, and conic angles, then the location of the source is estimated by simultaneously solving these equations

Keywords

acoustic arrays; acoustic signal processing; array signal processing; direction-of-arrival estimation; multipath channels; underwater sound; 2D sensor array; 3D location estimation; 3D near-field source localisation algorithm; bottom-mounted linear sensor array; conic angles; multipath environment; passive localisation; source signal; time difference of arrivals; underwater acoustic source;

fLanguage

English

Journal_Title

Radar, Sonar and Navigation, IEE Proceedings -

Publisher

iet

ISSN

1350-2395

Type

jour

DOI

10.1049/ip-rsn:20020494

Filename

1033235