Title page for etd-1019114-205855


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URN etd-1019114-205855
Author Ssu-yu Chen
Author's Email Address No Public.
Statistics This thesis had been viewed 5386 times. Download 273 times.
Department Institute of Undersea Technology
Year 2014
Semester 1
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Development of chirp sonar system and Its application
Date of Defense 2014-11-17
Page Count 99
Keyword
  • offshore southwestern Taiwan
  • sub-bottom profiler
  • chirp sonar
  • reflection coefficien
  • seismic images
  • Abstract Acoustical sub-bottom profiler (Chirp sonar) is widely used as a survey tool to image sediment structure. Chirp sonar data inversion has been used to determine sediment layering and physical properties in underwater acoustics applications. Chirp sonar echoes can be used to measure acoustic reflection coefficients at normal incidence to the seabed and attenuation roll-off rates of surficial sediments. The aim of this research is to (1) develop acoustical sub-bottom profiler and (2) to estimated seabed reflection coefficient and compare with coring data. This research is to integrate acoustic transducer, amplifier, and DAQ system as a independent system for acoustic profiler. The developed prototype of the acoustical sub-bottom profiler has been used and tested in the southwestern sea off Taiwan. This tool lends itself to various tasks that include imaging fluidized mud greater 40 meters, sediment classification, marine geotechnical surveys, hazardous waste target location, geological surveys, archeological surveys, mapping clam populations, military and offshore oil applications, and full ocean depth sub-bottom imaging.
    Advisory Committee
  • Chau-Chang Wang - chair
  • Andrea Y.Y. Chang - co-chair
  • Chi-Fang Chen - co-chair
  • Linus Y.S. Chiu - advisor
  • Files
  • etd-1019114-205855.pdf
  • Indicate in-campus at 2 year and off-campus access at 3 year.
    Date of Submission 2014-11-25

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