Essays about: "hydrophone"

Showing result 1 - 5 of 8 essays containing the word hydrophone.

  1. 1. Blind Acoustic Feedback Cancellation for an AUV

    University essay from Linköpings universitet/Reglerteknik

    Author : Hampus Frick; [2023]
    Keywords : acoustical feedback; adaptive filter; least leaky mean square; Kalman; blind source separation; independent component analysis; complex independent component analysis; degenerative unmixing estimation technique; convolutive mixture;

    Abstract : SAAB has developed an autonomous underwater vehicle that can mimic a conventional submarine for military fleets to exercise anti-submarine warfare. The AUV actively emits amplified versions of received sonar pulses to create the illusion of being a larger object. READ MORE

  3. 2. Harbour Porpoise Click Train Classification with LSTM Recurrent Neural Networks

    University essay from KTH/Teknisk informationsvetenskap

    Author : Filip Ärlemalm; [2017]
    Keywords : ;

    Abstract : The harbour porpoise is a toothed whale whose presence is threatened in Scandinavia. Onestep towards preserving the species in critical areas is to study and observe the harbourporpoise population growth or decline in these areas. Today this is done by using underwateraudio recorders, so called hydrophones, and manual analyzing tools. READ MORE

  4. 3. Array Element Localisation

    University essay from Lunds universitet/Matematisk statistik

    Author : Axel Sundberg; Olle Bristedt; [2017]
    Keywords : Mathematics and Statistics;

    Abstract : Abstract—This article have been written in cooperation with The Swedish Defense Research Agency (FOI). The article proposes a method to calibrate hydrophone positions for improved underwater survailence in The Baltic Sea. READ MORE

  5. 4. Evaluation of live fish as an echolocation enrichment for the bottlenose dolphin (Tursiops truncatus)

    University essay from Linköpings universitet/Institutionen för fysik, kemi och biologi

    Author : Veronika Karczmarz; [2016]
    Keywords : Echolocation; Bottlenose dolphins; Sonar; Enrichment; Live fish; Goldfish; Welfare; Zoo animals;

    Abstract : Bottlenose dolphins (Tursiops truncatus) kept in zoos and dolphinarias rarely get an outlet for their echolocation abilities as their pool environment is often quite barren. Not much research has been carried out on enrichments promoting echolocation for dolphins in human care. READ MORE

  6. 5. Assessment of Shear Wave Elastography Acoustic Output - a Simulation and Experimental Study

    University essay from KTH/Skolan för teknik och hälsa (STH)

    Author : Cristiana Golfetto; [2016]
    Keywords : Technology;

    Abstract : Shear Wave Elastography (SWE) is a medical imaging modality which is able to measure tissue stiffness through the speed of ultrasound-induced shear waves. Pre- vious studies have reviewed the safety aspects of clinical ultrasound, highlighting the harmlessness of the technique. READ MORE