Title:
TRANSMISSION UNIT AND SONAR
Document Type and Number:
WIPO Patent Application WO/2015/122240
Kind Code:
A1
Abstract:
The present invention minimizes increases in the quantity of transmission signal generation units and precisely controls the direction of each orientation of a transmission beam. A transmission unit (12) is provided with: a transmitter (10) that has a plurality of transmission elements (TDm1, TDm2, TDm3, etc.) that each transmit a transmitter pulse; a plurality of transmission signal generation units (S1, S3, S5, etc.) that each generate a transmission signal having an adjusted phase; and a circuit unit (15) that combines at least two of the transmission signals and outputs the result to at least one of first transmission elements (TDm2, TDm4, TDm6, etc.) included among the plurality of transmission elements (TDm1, TDm2, TDm3, etc.).
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Inventors:
YAMAGUCHI TAKEHARU (JP)
Application Number:
PCT/JP2015/051299
Publication Date:
August 20, 2015
Filing Date:
January 20, 2015
Export Citation:
Assignee:
FURUNO ELECTRIC CO (JP)
International Classes:
G01S7/523; G01S7/02; G01S7/521; G01S15/96
Foreign References:
| JPS5511557U | 1980-01-24 | |||
| JP2003202370A | 2003-07-18 | |||
| JPS57204481A | 1982-12-15 | |||
| JP2009222445A | 2009-10-01 | |||
| JPH085728A | 1996-01-12 |
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