Accession Number:

ADA610146

Title:

Forward Scan & 3-D Forward Look Sonars for Ocean Explorer AUV's

Descriptive Note:

Annual rept.

Corporate Author:

FLORIDA ATLANTIC UNIV BOCA RATON DEPT OF OCEAN ENGINEERING

Report Date:

2000-09-30

Pagination or Media Count:

7.0

Abstract:

The long-term goals of this research are to develop Forward Looking Sonar Systems FLSS for the Ocean Explorer and mini classes of AUV s, with specific emphasis on operation in a shallow water environment. Two types of sonar are being investigated that generate different seafloor images, one is a Forward Scan Sonar, FSS that generates a scan image and the second is a 3-D Forward Look Sonar 3-D FLS that generates a 3-D rendition of the sea floor terrain. The FSS acquires a complete beamformed image of the seafloor ahead of the AUV at a very fast frame rate 4 to 5 full forward sector frames per second providing the information needed for obstacle avoidance, navigation, mine recognition and terrain mapping. The 3-D FLS generates images at a slower rate but can be very effective in target recognition. For the FLSS, different versions are developed to operate from low frequency 250 kHz to high frequency 600 kHz or more.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Submarine Engineering
  • Acoustic Detection and Detectors
  • Target Direction, Range and Position Finding

Distribution Statement:

APPROVED FOR PUBLIC RELEASE