An equipment to detect sound radiating sources based on the acoustical holography method

نویسندگان
چکیده

منابع مشابه

Localization of Radiating Sources by an Acoustical Array

Arrays of sensors are used in many fields to detect signals, to resolve closely spaced targets, to estimate the bearing, the position, the strength and other properties of radiating sources whose signals arrive from different positions. The purpose of the work is described in the paper is to provide estimators which are used to localize acoustical sources by an acoustical array of sensors. Thes...

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An application of holographic interferometry to acoustical holography

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Fast wideband acoustical holography.

Patch near-field acoustical holography methods like statistically optimized near-field acoustical holography and equivalent source method are limited to relatively low frequencies, where the average array-element spacing is less than half of the acoustic wavelength, while beamforming provides useful resolution only at medium-to-high frequencies. With adequate array design, both methods can be u...

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Wideband acoustical holography

Patch Near-field Acoustical Holography (NAH) methods like SONAH and ESM are limited to relatively low frequencies where the average array inter-element spacing is less than half a wavelength, while beamforming provides useful resolution only at medium-to-high frequencies. With adequate array design, both methods can be used with the same array. But for holography to provide good low-frequency r...

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ژورنال

عنوان ژورنال: The Journal of the Acoustical Society of America

سال: 1978

ISSN: 0001-4966

DOI: 10.1121/1.2004020