DATASONICS SIS-1500, System Manual

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SIS-1500 Seafloor Imaging System 1-7
SECTION 1 SIS-1500 Overview SIP-150 Sonar Image Processor
SIP-150 Sonar Image Processor Workstation
The SIP-150 Sonar Image Processor Workstation, which runs the Datasonics
Windows based Chirpscan
3
software, serves as the operator interface for
monitoring and controlling the system. The workstation includes a Pentium
based processor, Windows 95/NT and the following components:
•
1280 X 1024 high resolution color monitor
• Dual channel digital signal processor
• Graphics processor
•
Hard drive with a SCSI interface
•
Optional magneto-optical drive or Exabyte 8 mm
cartridge tape drive
•
CD ROM drive
• 1.44 megabyte floppy drive
• Drawer type integrated keyboard and pointing device
The workstation displays the port and starboard sidescan sonar data and the
pitch, roll, heading, course, and altitude data in separate display windows in
the Display area of the Main window. Also within the Main window is the
Parameter display, the Status display, the Sonar Controls box, and the
Auxiliary Controls box.
As the sonar data are received, the workstation processes the data using
matched-filter digital signal processing, applying continuous Short Time
Fourier Transforms (STFT) for each sweep or transmit cycle. In addition, the
full dynamic range of the processed data is recorded on digital storage media
while being displayed on a high resolution 1280 X 1024 monitor. An optional
printer or graphic recorder can be connected to print either the data currently
being recorded or previously recorded data.
In addition to the sonar data, the workstation integrates the tow vehicle status
information, the sensor data and the navigation data, if available, into the
sidescan sonar data records. The status information also includes various
tow vehicle hardware settings. The sensor data are input from the tow
vehicle’s pitch, roll, heading, and optional sensors, and the navigation data
are input from the ship’s navigation system.