TY - GEN
T1 - Hull-mounted acoustic vector-sensor processing
AU - Hawkes, Malcolm
AU - Nehorai, Arye
N1 - Funding Information:
Future work will incorporate the problems associated with non-acoustic vibrations of the surface, e.g. from machinery noise, as well as consider curved boundaries. Acknowledgements This work was supported by the Office of Naval Research under Grant numbers N00014-95-1-1101 and N00014-91-J-1298.
Publisher Copyright:
© 1996 IEEE
PY - 1995
Y1 - 1995
N2 - We consider the direction-of-arrival (DOA) estimation problem using arrays of acoustic vector-sensors located at a solid-liquid boundary. We formulate a measurement model and derive an expression for the Cramer-Rao bound (CRB) of a single source. The CRB is used to analyse the case of rigid and pressure-release surfaces in detail and comparison is made with pressure-sensor arrays. In particular, we show that a pressure-sensor array needs to be somewhat less than a quarter wavelength from a pressure-release surface to have comparable performance to an array of velocity sensors mounted at the surface.
AB - We consider the direction-of-arrival (DOA) estimation problem using arrays of acoustic vector-sensors located at a solid-liquid boundary. We formulate a measurement model and derive an expression for the Cramer-Rao bound (CRB) of a single source. The CRB is used to analyse the case of rigid and pressure-release surfaces in detail and comparison is made with pressure-sensor arrays. In particular, we show that a pressure-sensor array needs to be somewhat less than a quarter wavelength from a pressure-release surface to have comparable performance to an array of velocity sensors mounted at the surface.
UR - http://www.scopus.com/inward/record.url?scp=0037823769&partnerID=8YFLogxK
U2 - 10.1109/ACSSC.1995.540859
DO - 10.1109/ACSSC.1995.540859
M3 - Conference contribution
AN - SCOPUS:0037823769
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 1046
EP - 1050
BT - Conference Record of the 29th Asilomar Conference on Signals, Systems and Computers, ACSSC 1995
A2 - Singh, Avtar
PB - IEEE Computer Society
T2 - 29th Asilomar Conference on Signals, Systems and Computers, ACSSC 1995
Y2 - 30 October 1995 through 1 November 1995
ER -