发明名称 |
SYSTEMS, METHODS, APPARATUS, AND COMPUTER-READABLE MEDIA FOR SOURCE LOCALIZATION USING AUDIBLE SOUND AND ULTRASOUND |
摘要 |
A method of signal processing includes calculating a range based on information from a reflected ultrasonic signal. Based on the calculated range, one among a plurality of direction-of-arrival (DOA) estimation operations is selected. The method also includes performing the selected operation to calculate an estimated direction of arrival (DOA) of an audio-frequency component of a multichannel signal. Examples of DOA estimation operations include operations based on phase differences between channels of the multichannel signal and operations based on a difference in gain between signals that are based on channels of the multichannel signal. |
申请公布号 |
KR20130137020(A) |
申请公布日期 |
2013.12.13 |
申请号 |
KR20137026127 |
申请日期 |
2012.02.27 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
VISSER ERIK;MOMEYER BRIAN |
分类号 |
G01S3/80;G10L17/00 |
主分类号 |
G01S3/80 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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