Title:
SOUND SOURCE RANGING METHOD, DEVICE AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/041219
Kind Code:
A1
Abstract:
A sound source ranging method, a device (110, 210) and a system (100, 200), being able to improve the accuracy of sound source ranging. Said method comprises: acquiring, by means of a first microphone (122, 222), a sound pressure of a second sound wave of a sound source, the second sound wave being obtained by delaying a first sound wave of the sound source by a first transmission distance (S310); acquiring, by means of a second microphone (132, 232), a sound pressure of a third sound wave of the sound source (S320); and according to the sound pressure of the second sound wave, the sound pressure of the third sound wave and the first transmission distance, determining a target distance to the sound source (S330).
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Inventors:
ZHANG LIBIN (CN)
YUAN TINGQIU (CN)
YUAN TINGQIU (CN)
Application Number:
PCT/CN2020/112587
Publication Date:
March 03, 2022
Filing Date:
August 31, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G01S5/22
Foreign References:
| CN111381211A | 2020-07-07 | |||
| CN102800325A | 2012-11-28 | |||
| CN110049408A | 2019-07-23 | |||
| CN111077497A | 2020-04-28 | |||
| CN107976651A | 2018-05-01 | |||
| US20150003618A1 | 2015-01-01 |
Attorney, Agent or Firm:
BEIJING RUN ZEHENG INTELLECTUAL PROPERTY LAW FIRM (CN)
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