High resolution bathymetric sonar system and measuring method for measuring the physiognomy of the seabed
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United States of America Patent
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Mar 29, 2005
Grant Date -
Feb 17, 2005
app pub date -
Jun 18, 2003
filing date -
Sep 13, 2001
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Abstract
A high resolution bathymetric sidescan sonar system for measuring micro-geomorphy of the sea bottom having an underwater vehicle, an underwater electronic subsystem mounted on the underwater vehicle and containing a transmitter and a receiver, and two sonar arrays mounted symmetrically on two sides of a lower part of the underwater vehicle and being connected to the underwater electronic subsystem through a cable. Each sonar array has a transmitting linear array and three or more parallel receiving linear arrays. The parallel receiving linear arrays are arranged at equal spaces, and the space d between two adjacent parallel receiving linear arrays is .lambda.>d.gtoreq..lambda./2, in which .lambda. is a wavelength of an acoustic wave, and an operation frequency of the parallel receiving linear arrays ranges from 30 kHz to 1200 kHz.
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