EM 710
resolution inside the near field. A ping rate of up to 25 per second
is possible. The transmit fan is electronically stabilized for roll,
pitch and yaw.
The EM 710 has a receive beamwidth of either 1 or 2 degrees
depending on the chosen receive transducer. The number
of beams is 256 or 128 respectively, with dynamic focusing
employed in the near field.
A high density beam processing mode provides up to 400 or
200 soundings per swath by using a limited range window for
the detections, which in practice is equivalent to synthetically
sharpening the beamwidth.
The system will be able to generate two separate alongtrack
swaths per ping. The system produces up to 800 (with 1 degree
receive transducer) soundings per ping in this mode.
The beamspacing may be set to be either equiangular or
equidistant. The receive beams are electronically roll stabilized.
This can be used to increase the resolution beyond what is
achievable in normal operation. In high density mode, the size
of each acoustic footprint is reduced to fit the higher sounding
density. The coverage may be limited by the operator either
in angle or in swath width without reducing the number of
beams. A combination of phase and amplitude bottom detection
algorithm is used, in order to provide soundings with the best
possible accuracy.
Acoustical seabed imaging
Integrated seabed acoustical imaging capability is included
as standard. Software to use this data for automatic seabed
classification is available.
Water column display
A real time display window for water column backscatter is
available. Logging of water column data and of raw stave data
(before beamforming) is a system option.
Choice of operator software
The EM 710 is delivered as a complete stand-alone seabed
mapping system. The Operator Station, a high-performance PC
work station, includes the necessary operator controls for setting
up and running the system, data logging and system testing. The
Seafloor Information System (SIS) by Kongsberg Maritime also
includes an extensive set of graphical displays for data quality
control, as well as system calibration and other tools which are
required. SIS supports on-line real-time data cleaning to improve
the overall survey efficiency.
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Страница 3: ...Kongsberg EM 710 Multibeam echo sounder Installation Manual Kongsberg Maritime 164851 C June 2009 ...
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Страница 155: ...EM 710 Multibeam echo sounder Installation manual EM 710 Multibeam echo sounder Maintenance manual ...