Edgetech 2000-DSS, User Hardware Manual

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1-1
1.0
OVERVIEW
The EdgeTech 2000-DSS Combined Side Scan Sonar and Sub-Bottom Profiling System is a combination
frequency modulated (FM) dual frequency side scan sonar and a high resolution FM sub-bottom profiler
that uses EdgeTech’s proprietary Full Spectrum “chirp” technologies to simultaneously generate both high
resolution side scan imagery at longer ranges and high resolution cross sectional images of the seabed at
deeper penetrations than conventional continuous wave (CW) systems.
The 2000-DSS Combined Side Scan Sonar and Sub-Bottom Profiling System is available with a choice of
two dual frequency configurations for the side scan sonar: 100/400 kHz and 300/600 kHz. The 2000-DSS
uses a high frequency, 2–16 kHz sub-bottom sonar for higher resolution sub-bottom imaging in water
depths up to 2000 meters.
The two side scan frequencies and the sub bottom frequency are transmitted simultaneously as linearly
swept wide band high energy acoustic pulses (also called "chirp pulses") over a full spectrum frequency
range, and the received echoes are processed into high signal-to-noise (SNR) images, which can be directly
displayed as shades of gray or color on a computer monitor and printed on a continuous feed thermal
printer. The data can also be stored in real time onto a large capacity hard drive and archived onto a DVD.
1.1 2000 Series Applications
Applications for the 2000 Series Combined Side Scan Sonar and Sub-Bottom Profiling System are many, a
few of which are the following:
•
Archeological surveys
•
Geological/geophysical surveys
•
Sediment classification
•
Buried cable and pipeline surveys
•
Dredging and coastal studies
•
Pre/post dredging surveys
•
Scour/erosion investigation
•
Marine construction surveys