Blar i Institutt for elektroniske systemer på forfatter "Tollefsen, Dag"

Viser treff 1-6 av 6

    • A method for remote sensing of acoustic ship noise 

      Coward, Stian (Master thesis, 2013)
      Ship noise in the ocean due to commercial shipping has gained increased interest in recent years because of its potential impact on marine life and the ocean environment. Hence, rapid methods to estimate the source level ...

    • Estimation of harmonic signatures in underwater noise from small boats 

      Faltin, Ole Gunnar Mathisen (Master thesis, 2015)
      This thesis explores underwater noise from small boats. There has been an in- creased focus on anthropogenic noise in the marine environment within the EU in the past years. The focus of the thesis is to study the noise ...

    • Mid-frequency sound propagation under a rough sea-ice cover 

      Isachsen, Lina Thu (Master thesis, 2021)
      I denne masteravhandlingen studeres forplantning av lyd i sjøvann under en isflate, med formål om kommunikasjon under is. Dette kan anvendes til navigasjon under is, klimaovervåking og havmodellering. For å adressere dette ...

    • Ship track estimation from single hydrophone data 

      Larsen, Magnus (Master thesis, 2014)
      Passive acoustic range estimation and source tracking using hydrophones have been a problem because of the complexity of the underwater channel. This thesis is concerned with a fast method for the estimation of ship velocity ...

    • Source localization in the ocean via machine learning 

      Iversen, Simon Andre (Master thesis, 2018)
      This study investigated source localization in the ocean using machine learning meth-ods. By interpreting the sound waves emitted by the source, localization can be acquired.In order to interpret the pressure, the machine ...

    • Source Range Estimation in the Ocean using Time Difference of Multipath Arrivals 

      Skurtveit, Narve Garshol (Master thesis, 2016)
      Passive acoustic ranging in the underwater channel is a challenging task. It has been studied and used in military applications such as passive sonar, but also by marine biologists for mammal detection and ranging. Effective ...