Title:
MEASURING APPARATUS FOR REFLECTION INTENSITY USING SPLIT BEAM, AND AZIMUTH MEASURING APPARATUS
Document Type and Number:
Japanese Patent JP2002082155
Kind Code:
A
Abstract:
To easily calculate a channel-to-channel distance, even if weighting operation by the shape of a transducer or a window function is conducted.
On the basis of data regarding an area weight and an electric weight which are input from an input part 7, a computing and processing part 6 calculates an inter-channel distance L. On the basis of the calculated distance L, angle of arrival θ of acoustic waves is found, directional characteristics are corrected, and a precise reflection intensity TS is obtained. According to the apparatus, the distance L can be calculated automatically and easily for any shape and any function.
Inventors:
OGATA MASAKI
ISHIKAWA YUJI
KAGAWA JIRO
ISHIKAWA YUJI
KAGAWA JIRO
Application Number:
JP2001161257A
Publication Date:
March 22, 2002
Filing Date:
May 29, 2001
Export Citation:
Assignee:
FURUNO ELECTRIC CO
International Classes:
G01S3/808; (IPC1-7): G01S3/808
Attorney, Agent or Firm:
Okumura Hideyuki
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