Sensor networks are gaining great attention because of their large range of applications. The main purpose of a sensor network is to monitor an area, including detecting, identifying, localizing, and tracking one or more objects of interest. These networks may be used by the military in surveillance, reconnaissance, and combat scenarios or around the perimeter of a manufacturing plant for intrusion detection. Such systems should be very ready to catch and signal the event. Real time issues are critical. Fortunately, nowadays the integrated circuit technology provides low-cost sensor nodes with signal processing and wireless communication capabilities. In this paper, we consider the use of simple PDAs (Personal Digital Assistant) equiped with built-in microphones and external IEEE802.11b wireless cards for radio communication. The purpose is to realize an audio localization system with some real-time constraints in term of computational delay.
Real Time Implemetation of Acoustical Beamforming
BERGAMO, PIERPAOLO;MANIEZZO, Daniela;MAZZINI, Gianluca
2003
Abstract
Sensor networks are gaining great attention because of their large range of applications. The main purpose of a sensor network is to monitor an area, including detecting, identifying, localizing, and tracking one or more objects of interest. These networks may be used by the military in surveillance, reconnaissance, and combat scenarios or around the perimeter of a manufacturing plant for intrusion detection. Such systems should be very ready to catch and signal the event. Real time issues are critical. Fortunately, nowadays the integrated circuit technology provides low-cost sensor nodes with signal processing and wireless communication capabilities. In this paper, we consider the use of simple PDAs (Personal Digital Assistant) equiped with built-in microphones and external IEEE802.11b wireless cards for radio communication. The purpose is to realize an audio localization system with some real-time constraints in term of computational delay.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
