Page 67 of 133
Version 3.0 REV r000
Date 25-08-2010
7 SONIC 2024/2022 THEORY OF OPERATION
The Sonic 2024/2022 transmits a shaped continuous wave pulse at the user- selected frequency.
The transmit pulse is narrow in the along-track direction, but very wide in the across-track direction.
The reflected acoustic energy is received via the Sonic 2024/2022 receivers; within the Receive
Module the beams are formed and the bottom detection process takes place. The resultant bottom
detections (range and bearing) are then sent via Ethernet, through the deck lead, to the SIM. The
SIM then sends the data out to the Sonic Control software and the data collection software.
7.1 Sonic 2024/2022 Sonar Head Block Diagram
Receive Module
Receivers
Wet Controller
Beam Former
Bottom Detection
To SIM
Gigabit Ethernet
Transmitter Board
Projector
Transmitter Power
Supply
Low Voltage Power
Supply
Med. Voltage Power
Supply
48 DCV from
SIM
Figure 66: SONIC 2024 Sonar Head Block Diagram
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