Essays about: "Depth sounding"

Showing result 1 - 5 of 6 essays containing the words Depth sounding.

  1. 1. Analytic comparison of multibeam echo soundings

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Terje Ole Slinning; [2016]
    Keywords : multibeam echo system; geography; GIS; bathymetry and seafloor; hysical geography and ecosystem science; Earth and Environmental Sciences;

    Abstract : This study makes a numeric and visual comparison of two different multibeam echo sounding (MBES) surveys performed at the exact same location, in an effort to establish how reliable and comparable the vertical depth measurements are. The horizontal position uncertainty is not issued in this study. READ MORE

  3. 2. Water Depth Estimation Using Ultrasound Pulses for Handheld Diving Equipment

    University essay from Linköpings universitet/Institutionen för systemteknik; Linköpings universitet/Tekniska högskolan

    Author : Katarina Mollén; [2015]
    Keywords : Depth sounding; Echo sounding; Underwater ultrasounding; Time of flight estimation; Time delay estimation; Matched filter; Cross correlation; GCC; PHAT; ML;

    Abstract : This thesis studies the design and implementation of an ultra-sonic water depth sounder. The depth sounder is implemented in a hand-held smart console used by divers. READ MORE

  4. 3. A practical assessment of frequency electromagnetic inversion in a near surface geological environment

    University essay from Lunds universitet/Geologiska institutionen

    Author : Mattias Letellier; [2012]
    Keywords : frequency; electromagnetic; sounding; inversion; GEM-2 frekvens; elektromagnetiska; sondering; GEM-2; Earth and Environmental Sciences;

    Abstract : Under de senaste 15 åren har användningen av frekvenselektromagnetiska sonderingsinstrument inom geofysiska undersökningar drivit forskningen framåt för att förbättra den använda metoden. En av dessa tekniker är inversion vilket är den process som omvandlar elektromagnetiska data till djupvärden för geologiska lager. READ MORE

  5. 4. A study of the correlation between soil-rock sounding and column penetration test data

    University essay from KTH/Jord- och bergmekanik

    Author : Johan Fransson; [2011]
    Keywords : soil-rock sounding; column penetration; correlation;

    Abstract : Lime-cement columns have been used in Sweden to improve poor soil conditions since the 1970’s. The method is inexpensive and flexible, but is difficult to test since the columns are manufactured in-situ. Many test-methods have been developed for testing the column strength during the years. READ MORE

  6. 5. Resistivity and IP measurements at the Bolmen Tunnel and Ådalsbanan, Sweden

    University essay from Lunds universitet/Geologiska institutionen

    Author : Miriam Cegrell; Jimmy Mårtensson; [2008]
    Keywords : resistivity; induced polarisation IP ; geophysics; geology; Bolmen; Ådalsbanan; resistivitet; inducerad polarisation IP ; geofysik; geologi; Earth and Environmental Sciences;

    Abstract : In all tunnel construction projects geophysical methods are important as a foundation for engineering geological conceptual models. Detailed information about the condition and the physical properties of rocks at depth is desirable, and geophysical methods have the potential to exploit these properties. READ MORE