Title :
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
Abstract :
An intelligent instrument for passive recognition and location of a sound source is presented. The performance of this instrument is studied in an anechoic chamber. The necessary software and hardware implementation is explained. Very fast hardware is used to achieve real-time processing. Timing is a critical parameter of 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. Experimental results which provide a more quantitative measure of the system performance are cited
Keywords :
acoustic generators; acoustic signal processing; anechoic chambers; computerised instrumentation; correlation methods; interpolation; parameter estimation; pattern recognition; position measurement; signal processing equipment; acoustic targets; anechoic chamber; cross-correlation; intelligent instrument; interpolation; passive recognition; position estimation; real-time processing; software; sound source; source position; two-dimensional location estimation; Algorithm design and analysis; Anechoic chambers; Covariance matrix; Delay effects; Delay estimation; Hardware; Instruments; Interpolation; Sensor arrays; System performance;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 1992. IMTC '92., 9th IEEE
Conference_Location :
Metropolitan, NY
Print_ISBN :
0-7803-0640-6
DOI :
10.1109/IMTC.1992.245175
