System Architecture; System Operation; Figure 1: Seabat T-Series Subsea System Configuration - Teledyne SeaBat T Series Operator's Manual

INTRODUCTION
1.2

System Architecture

The SeaBat T-Series Subsea sonar system consists of a Subsea Sonar Processor (SSP), a
receiver unit, and a projector unit (or two projector units). The receiver and projector units each
connects to the SSP via a dedicated cable. With AUV operation, the SeaBat T-Series Subsea
sonar system is installed and configured to operate autonomously requiring only a startup
command to function. With ROV operation, user displays and system control originate within the
customer-furnished survey laptop. To feed 22-60VDC power and control the operation of the
sonar, the SSP provides an Ethernet and power input connector. Sensor data may be interfaced
to the SSP via dedicated ports.
S
ONAR HEAD ASSEMBLY
EM7219-1
or EM7218-1
Receiver
1.3

System Operation

The projector unit of the sonar head assembly transmits a pulse of acoustic energy, which travels
through the water medium and is reflected by the seafloor or any objects in its path. The reflected
signal is detected by the receiver unit of the sonar head assembly, digitized by internal
electronics, and sent to the SSP for beamforming and processing. The SSP can act as a single
point of interfacing for sonar and sensor data for precise time stamping of these data prior to
broadcast over standard Ethernet connection to the logging system.
SeaBat T-Series Subsea Operator's Manual
Version 7
Subsea
Sonar Processor
(SSP)
Deep operation (6000m)
TC2160
Projector
Shallow operation (400m)
TC2181
Projector

Figure 1: SeaBat T-Series Subsea System Configuration

Page 2
Time
AUX
Motion
sensors
PPS
Trigger
Sound velocity
Optional TC2163
Projector
January 31, 2019