发明授权
US09299336B2 Computationally efficient broadband filter-and-sum array focusing
有权
计算效率高的宽带滤波器和总和阵列聚焦
- 专利标题： Computationally efficient broadband filter-and-sum array focusing
- 专利标题（中）： 计算效率高的宽带滤波器和总和阵列聚焦
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申请号： US14355966申请日： 2012-11-02
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公开(公告)号： US09299336B2公开(公告)日： 2016-03-29
- 发明人: Jørgen Hald
- 申请人： BRÜEL & KJR SOUND & VIBRATION MEASUREMENT A/S
- 申请人地址： DK Nærum
- 专利权人： Brüel & Kjær Sound & Vibration Measurement A/S
- 当前专利权人： Brüel & Kjær Sound & Vibration Measurement A/S
- 当前专利权人地址： DK Nærum
- 代理机构： Nixon Peabody LLP
- 优先权： EP11187871 20111104
- 国际申请： PCT/EP2012/071717 WO 20121102
- 国际公布： WO2013/064628 WO 20130510
- 主分类号： G10K11/34
- IPC分类号： G10K11/34 ; G01S3/808
摘要：
A method of determining a focused output signal of a sensor array comprising a plurality of sensors, each sensor being operable to output a sensor output signal responsive to a measured quantity, the focused output signal being indicative of a calculated quantity at a focus point; the method comprising: receiving a respective measured sensor output signal from each of the sensors; computing the focused output signal by performing a focusing calculation with respect to the measured sensor signals; wherein the method further comprises determining a subset of mesh points of a set of predetermined mesh points, each mesh point having at least one pre-computed filter parameter associated with it; and wherein computing the focused output signal comprises performing an interpolation with respect to the subset of mesh points so as to obtain an interpolated focused output signal.
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