Essays about: "Echolocation"

Showing result 1 - 5 of 14 essays containing the word Echolocation.

  1. 1. DRONAR: Obstacle echolocation using ego-noise

    University essay from Linköpings universitet/Institutionen för systemteknik

    Author : Henrik Nilsson; [2023]
    Keywords : Drone; Autonomous systems; Obstacle avoidance; Sound; Noise; Planning; SONAR; Ego-noise; Multi-rotor aerial vehicle; Unmanned areal vehicle; Drönare; Autonoma system; Hinderundvikning; Ljud; Oljud; Planering; SONAR; Egenljud; Multirotorfordon; Obemannat luftfordon;

    Abstract : You do not want your drone to crash. Therefore, safety systems should be put in place to prevent such an event, and obstacle avoidance is a major part of this. Today, the most successful techniques use cameras or light detection and ranging (LIDAR) to find and avoid obstacles; but to improve resiliency, multiple systems should be used. READ MORE

  3. 2. Making nets more acoustically visible : Floats as passive mitigation measures to reduce bycatch of harbour porpoise (Phocoena phocoena) in gillnets

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Frida Rosshagen; [2023]
    Keywords : toothed whales; harbour porpoise; Phocoena phocoena; incidental capture; bycatch; fisheries; fishing gear; ; gillnet; mitigation; reduction; low-cost; passive acoustic reflector; float;

    Abstract : Incidental capture in fishing gear is today affecting at least 112 marine mammal species worldwide and for many smaller toothed whale species (Odontocete), gillnets are considered to be the largest problem. Although some effective mitigation measures exists, these are often context specific and many might be hard to implement due to reasons such as high costs and maintenance. READ MORE

  4. 3. An Analysis of Data Compression Algorithms in the Context of Ultrasonic Bat Bioacoustics

    University essay from Linnéuniversitetet/Institutionen för datavetenskap och medieteknik (DM)

    Author : Max Anderson; Benjamin Anderson; [2022]
    Keywords : bioacoustics; data compression; bats; audio data; ultrasonic;

    Abstract : Audio data compression seeks to reduce the size of sound files, making them easier to store and transfer, and is thus a highly valued tool for those working with large sets of audio data. For example, some biologists work with audio recordings of bats, which are well known for their frequent use of ultrasonic echolocation, and so these biologists can accrue massive amounts of high frequency audio data. READ MORE

  5. 4. Analyzing the use of Humidity Cue in Navigation of Drosophila melanogaster

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Kalle Andersson; [2022]
    Keywords : Technology and Engineering;

    Abstract : Humidity is one of the main abiotic factor of ecosystems and affects animals behaviour, fitness and distribution. Due to their small size and inability to thermoregulate using metabolism, insects, such as the fruit fly Drosophila Melanogaster, are especially reliant on humidity. READ MORE

  6. 5. Sonar based enrichment and detection of hidden fish by bottlenose dolphins (Tursiops truncatus)

    University essay from Linköpings universitet/Biologi

    Author : Lovisa Larsson; [2020]
    Keywords : Dolphin; Tursiops truncatus; Echolocation; Enrichment; Sonar;

    Abstract : Dolphins at Kolmården dolphinarium were given a set of 20 floating fish hides, in order to simulate aforaging situation. The idea was to motivate the dolphins to use echolocation, in order to differentiatebetween hides which contained fish and hides that were empty. READ MORE