1-2
Figure 1-2: 850 kHz Side Scan Imagery of Machen Shipwreck
Sub-Bottom Sonar: The 2300 system has enhanced sub-bottom profiling capabilities with multiple low-
frequency transducers and a PVDF receiver. The system mounts multiple transmit transducers in a 4 x 1-
10 kHz configuration that provides improved directionality and the ability to focus power where needed.
200-Watt amplifiers drive each transducer and utilize wideband, Gaussian, and optional quadratic pulses
that emphasize the lower end of the frequency spectrum over a wideband pulse. The PVDF receive panel
provides 2D directionality and improved sensitivity over simple line arrays.
Figure 1-3: 4 x 1-10 kHz Sub-Bottom Imagery
Swath Bathymetry Option: MPES bathymetry is available on the platform. The Multi-Phase Echo Sounder
(MPES) produces real-time, high-resolution, three-dimensional (3D) maps of the seafloor while providing
co-registered simultaneous dual-frequency side scan imagery.
2300 COMBINED SONAR SYSTEM
019849_REV_B