Teledyne SeaBat T Series Operator's Manual page 17

INTRODUCTION
 Processing architecture: State-of-the-art processing architecture based on the standard
Microsoft Windows® environment ensures genuine new features and productivity
enhancements may be released over the life of the system in a user-friendly manner.
 Quality filters: Real-time bottom detection quality tests are performed to speed up
processing and reduce time and costs. The SeaBat system flags all soundings based on
two tests: the first analyses proximity to neighboring soundings and the second tests the
signal level of the bottom detection. If both tests are passed the sounding is flagged as
high quality. If any test fails, the sounding is flagged and the user may accept or reject it in
the postprocessing stage. The process is fully automated to generate the cleanest
possible data automatically and speed up processing.
 Real-time pipe detection and tracking: This SeaBat feature automatically detects pipes
within the multibeam swath, displays them in real time during survey, and generates
pipeline deliverables directly from SeaBat. The feature builds on the robustness of
FlexMode for relaying a high-density profile of the pipe. A special gating method focuses
on the pipeline to improve the quality of detection of the pipe.
 Resolution: Dynamic, focused beamforming maintains ultra-high resolution, even at short
ranges. A receiver sample rate of 34/66kHz provides excellent range resolution and
complements the narrow beam, thus providing the user with ultimate data quality and
resolution.
 Roll stabilization: Dynamic roll stabilization may be selected for up to ±15° roll, ensuring
that uniform coverage is maintained, independent of vehicle motion. This leads to maximum
efficiency by minimizing the number of survey lines required for a given survey area.
 Standard data output: The SeaBat T-Series Subsea system exports bathymetry, side-
scan, snippets backscatter, and water column backscatter in a standard format for easy
interfacing. With multiple deliverables, the system adheres to the "survey once, use many
times" philosophy, thereby optimizing vessel time.
 Steerable swath: The swath sector may be electronically steered to focus on a particular
region of interest to achieve optimal performance, coverage, and data density.
 Time stamping of sensor data: Data time stamping of sensor data interfaced to the SSP
(position, motion, and heading) is referenced to an incoming 1PPS and associated time
message (either serial or network), ensuring that each data is time stamped to UTC to
better than 1 millisecond, prior to broadcast over standard Ethernet to the UUV logging
system.
 Tracker: This feature is a complete automated mode of operation where the system sets
sonar control parameters, including range, gain, power, and swath width based on the
quality of the data being collected.
 Uncertainty output: Uncertainty estimations are automatically calculated on a beam-by-
beam basis and exported to allow for robust estimations of Total Propagated Uncertainty
(TPU) in data acquisition and processing packages. This feature enables advanced
statistical processing routines to perform optimally and thus speed up processing time
while reducing manual efforts.
 Variable swath coverage: This feature allows the swath angle to be adjusted by the
operator. Optimizing the swath ensures that the appropriate sector is insonified for the
selected range, which maximizes ping rate and thus survey speed, and minimizes
processing time and costs by providing the cleanest possible data.
 Water column recording: The SeaBat T-Series Subsea system is capable of recording
water column data for advanced scientific research. The water column data may be written
to an optional external Network Attached Storage (NAS) drive. Recorded data may be
played back and analyzed using the standard operating software provided with the system.
SeaBat T-Series Subsea Operator's Manual
Version 7
Page 5 January 31, 2019