High-efficiency sound field imaging reconstruction method

The invention discloses a high-efficiency sound field imaging reconstruction method, and the method comprises the steps: obtaining and measuring the area range and the distance range of a target sound source; receiving a sound field signal in a free space of the target sound source; if the distance...

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Bibliographische Detailangaben
Hauptverfasser:	HUANG YULING, HUANG MINLING, ZENG LVMING, ZHU YONGHAI, HUANG HUAHONG, LEI FENGRUI, JI XUANRONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACOUSTICS ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES MEASURING MUSICAL INSTRUMENTS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION TESTING
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Beschreibung
Zusammenfassung:	The invention discloses a high-efficiency sound field imaging reconstruction method, and the method comprises the steps: obtaining and measuring the area range and the distance range of a target sound source; receiving a sound field signal in a free space of the target sound source; if the distance range of the target sound source is a far-field sound source, obtaining a frequency domain signal corresponding to a sound field signal in a free space of the target sound source, reconstructing a sound source sound field in an area range according to a power spectrum estimation method, and obtaining a far-field sound source energy spectrum; if the distance range of the target sound source is a near-field sound source, reconstructing a sound source sound field in an area range for a sound field signal in a free space of the target sound source through a phase control focusing method, and obtaining sound intensity information of the near-field sound source; the distance range of the target sound source is rapidly de