发明名称 |
System and method for computing a location of an acoustic source |
摘要 |
In accordance with the present invention, a system and method for computing a location of an acoustic source is disclosed. The method includes steps of processing a plurality of microphone signals in frequency space to search a plurality of candidate acoustic source locations for a maximum normalized signal energy. The method uses phase-delay look-up tables to efficiently determine phase delays for a given frequency bin number k based upon a candidate source location and a microphone location, thereby reducing system memory requirements. Furthermore, the method compares a maximum signal energy for each frequency bin number k with a threshold energy E<SUB>t</SUB>(k) to improve accuracy in locating the acoustic source.
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申请公布号 |
US2005100176(A1) |
申请公布日期 |
2005.05.12 |
申请号 |
US20040015373 |
申请日期 |
2004.12.17 |
申请人 |
CHU PETER L.;KENOYER MICHAEL;WASHINGTON RICHARD |
发明人 |
CHU PETER L.;KENOYER MICHAEL;WASHINGTON RICHARD |
分类号 |
G01S5/18;H04N7/14;H04R3/00;(IPC1-7):H04R3/00;H03G1/00 |
主分类号 |
G01S5/18 |
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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