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Auditory localization device based on electrical analogue coupling structure

A technology of coupling structure and sound source localization, which is used in positioning, measuring devices, radio wave measurement systems, etc., can solve the difficulty of laboratory model processing, high processing and assembly accuracy requirements, and difficulty in sound source identification accuracy. question

Inactive Publication Date: 2013-07-10
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

However, the laboratory model of the above method is difficult to process, and requires high processing and assembly precision. In addition, it is also restricted by factors such as material properties, shape, and processing technology, so the accuracy of sound source identification is difficult to meet the requirements.

Method used

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  • Auditory localization device based on electrical analogue coupling structure
  • Auditory localization device based on electrical analogue coupling structure
  • Auditory localization device based on electrical analogue coupling structure

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Embodiment Construction

[0055]The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0056] Such as figure 1 As shown, a sound source localization device based on an electrical analog coupling structure includes an input module 1, a coupling processing module 2, an output module 3 and a post-processing module 4 connected in sequence, and the input module 1 receives an acoustic signal and converts it into a current signal, the coupling processing module 2 amplifies the phase of the current signal of the input module 1, and transmits the amplified voltage signal to the output module 3, and the output module 3 converts the voltage into a digital signal and transmits it to the post-processing module 4, so The above post-processing module 4 calculates the orientation information of the sound source.

[0057] The input module 1 includes a preprocessing module and three piezoelectric sensors, the piezoelectric sensors are excited b...

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Abstract

The invention relates to an auditory localization device based on an electrical analogue coupling structure. The auditory localization device comprises an input module, a coupling processing module, an output module and a postprocessing module which are connected in sequence, wherein the input module receives a sound signal and converts the sound signal into a current signal; the coupling processing module amplifies the phase of the current signal of the input module and transfers an amplified voltage signal to the output module; the output module converts the voltage into a digital signal and transfer the digital signal to the postprocessing module; and the postprocessing module calculates azimuth information of a sound source. Compared with the prior art, the auditory localization device has the advantages of compact structure, high accuracy, good signal instantaneity, wide application rage and the like.

Description

technical field [0001] The invention relates to the field of acoustic positioning, in particular to a sound source localization device based on an electrical analog coupling structure. Background technique [0002] American scholars R.N.Miles, Robert and others studied the auditory orientation mechanism of Ormia ochracea in the 1990s, and found that the sound localization ability of the parasitic fly benefited from its auditory organs with coupling structures, and in recent years In 2010, a second-level silicon microcrystalline microphone diaphragm was developed. The diaphragm was shaped by silicon micro-processing manufacturing technology, and the vibration signal was obtained by laser diffraction technology, thereby realizing the directivity characteristics of a pressure-difference microphone close to ideal. [0003] In foreign countries, literature search found that the United States Patent No. US6963653B1, the publication date is 2005.11.8, and the patent name is multi-l...

Claims

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Application Information

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IPC IPC(8): G01S5/20
Inventor 饶柱石塔娜杨铭朱鑫磊
Owner SHANGHAI JIAO TONG UNIV
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