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- W2003258683 abstract "Targeting peoples or object’s sound by passive acoustic sensors is of relevant interest in several military and civil applications. To date, methods are based on beam-forming algorithms or time-delay-estimate applied to sound detected by using sparsely deployed omnidirectional microphones (OMs). In this paper an approach for the localization of acoustic sources based on the use of unidirectional microphones (UMs) and amplitude-based signals’ features to extract information about the direction of the incoming sound is proposed. As the method relies on the accurate knowledge of the microphones’ directivity, analytical expressions of the acoustic sensors’ polar pattern were derived by testing them in an anechoic chamber. Then an experiment was conducted in a classroom-type environment by using an array of three UMs. The novelty of the method presented here consists on the use of UMs rather than OMs and on the ability to extract the sound direction by considering features such as pulse amplitudes rather than pulse arrival times." @default.
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- W2003258683 date "2010-10-01" @default.
- W2003258683 modified "2023-10-17" @default.
- W2003258683 title "Use of unidirectional microphones for the localization of sound sources." @default.
- W2003258683 doi "https://doi.org/10.1121/1.3508466" @default.
- W2003258683 hasPublicationYear "2010" @default.
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