Reson SeaBat 7125 SV2, Руководство оператора

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INTRODUCTION
SeaBat 7125 SV2 Operator‟s Manual
Page 3 July 25, 2011
Version 3
processing. The transceiver generates the video displayed on the monitor and formats a
digital output to be used by a peripheral bathymetric data processing system (or the
optional PDS2000 DAC preinstalled on the transceiver) while functioning as the control
interface between the operator and the sonar system.
1.4 System Features
The main features of the SeaBat 7125 SV2 system are summarized below. Depending
on the feature package purchased
2
, all features may not be available (see appendix F.2
Feature Packages ).
Resolution: Dynamic, focused beamforming maintains ultra-high resolution,
even at short ranges. A receiver sample rate of 34kHz provides
unprecedented range resolution and complements the narrow beam, thus
providing the user with ultimate data quality and resolution.
Fast update: The entire 140° (or 165°) swath is illuminated with a single
transmission at an update rate of up to 50Hz (range selection dependent),
maintaining 100% bottom coverage, even at high speed.
Depth rating: The SeaBat 7125 SV2 is depth-rated to 50 meters.
Data output: The SeaBat 7125 SV2 exports the standard hydrographic
records of bathymetry, side-scan, and snippets as well as water column data
and other data for more scientific applications.
Beamforming: The transceiver performs initial signal processing, a
combination of time delay and phase rotation beamforming.
Bottom detection: The special bottom detection algorithm uses a
combination of center-of-energy and phase-zero crossing algorithms to detect
the bottom in each individual beam with the highest possible accuracy.
Uncertainty output: Uncertainty is computed for each sounding and
presented graphically on various UI (user interface) displays.
Variable swath coverage: This feature gives the operator control of the
swath coverage. It includes swath width settings ranging from 45º to 140º (or
165º) in increments of 5º as well as a choice of beam density mode.
Steerable swath: This feature allows swath to be steered electronically.
Head tilt: This feature makes it possible to operate with a physically rotated
sonar head, which allows for very flexible and specialized applications of the
SeaBat 7125 SV2.
XYZ offsets: This feature makes it possible to take into account offsets
between the projector and receiver, when these two separate units are
mounted remotely from each other. This way bathymetric accuracy is
maintained.
2
Feature Packages include Standard and Efficiency.