Implementation of an intelligent instrument for passive recognition and two-dimensional location estimation of acoustic targets

Author

Papadopoulos, George ; Efstathiou, Kostas ; Li, Yiqi ; Delis, Andreas

Author_Institution

Dept. of Electr. Eng., Patras Univ., Greece

Volume

41

Issue

6

fYear

1992

fDate

12/1/1992 12:00:00 AM

Firstpage

885

Lastpage

890

Abstract

The development of an intelligent instrument for real-time recognition and location of sound broadband sources is addressed. The performance of this instrument was evaluated in an anechoic chamber. The necessary software and hardware implementation is explained. Very fast hardware is used to achieve real-time processing. The timing is the critical parameter of the system performance. Some advanced software techniques are used for the detection, recognition and position estimation of the source target. The method of cross correlation with a suitable interpolation function is examined for the estimation of the source position. Some experimental results are cited which provide a more quantitative study of the system performance for recognition and position estimation of a source

Keywords

acoustic devices; acoustic signal processing; computerised instrumentation; correlation methods; interpolation; pattern recognition; position measurement; signal processing equipment; acoustic targets; anechoic chamber; cross correlation; detection; intelligent instrument; interpolation; passive recognition; position estimation; real-time processing; real-time recognition; sound broadband sources; source target; two-dimensional location estimation; Anechoic chambers; Delay effects; Hardware; Instruments; Interpolation; Multiple signal classification; Sensor arrays; Sensor phenomena and characterization; System performance; Target recognition;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.199427

Filename

199427