Invention Grant
US07269263B2 Method of broadband constant directivity beamforming for non linear and non axi-symmetric sensor arrays embedded in an obstacle
有权
宽带恒定方向性波束成形方法，用于嵌入障碍物中的非线性和非轴对称传感器阵列
- Patent Title: Method of broadband constant directivity beamforming for non linear and non axi-symmetric sensor arrays embedded in an obstacle
- Patent Title (中): 宽带恒定方向性波束成形方法，用于嵌入障碍物中的非线性和非轴对称传感器阵列
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Application No.: US10732283Application Date: 2003-12-11
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Publication No.: US07269263B2Publication Date: 2007-09-11
- Inventor: Stephane Dedieu , Philippe Moquin
- Applicant: Stephane Dedieu , Philippe Moquin
- Applicant Address: CA Ottawa Ontario
- Assignee: BNY Trust Company of Canada
- Current Assignee: BNY Trust Company of Canada
- Current Assignee Address: CA Ottawa Ontario
- Agency: Antonelli, Terry, Stout & Kraus, LLP.
- Priority: GB0229059.1 20021212
- Main IPC: H04R3/00
- IPC: H04R3/00
Abstract:
A method is provided for designing a broad band constant directivity beamformer for a non-linear and non-axi-symmetric sensor array embedded in an obstacle having an odd shape, where the shape is imposed by industrial design constraints. In particular, the method of the present invention provides for collecting the beam pattern and keeping the main lobe reasonably constant by combined variation of the main lobe with the look direction angle and frequency. The invention is particularly useful for microphone arrays embedded in telephone sets but can be extended to other types of sensors.
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