Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"magnetic compass"”.
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The Mouse Magnetic Compass
All five classes of vertebrates use the geomagnetic field for spatial orientation. The geomagnetic field can be used to derive both 'map' and 'compass' information. There is evidence for two different mechanisms used to sense the magnetic field, the radical pair mechanism (RPM) and the magnetite …
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Behavioral Investigation of the Light-Dependent Magnetoreception Mechanism of Drosophila melanogaster
Use of a magnetic compass has been demonstrated in all major classes of vertebrates as well as several classes of invertebrates, and is proposed to involve a photo-induced radical pair mechanism (RPM). My dissertation research consisted of characterizing a magnetic compass in a model species, …
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Characterizing the Role of Magnetic Cues Underlying Spatial Behavior
In the 50+ years since the discovery of magnetic compass orientation by migratory songbirds, evidence for the use of magnetic cues has been obtained for a range of taxonomic groups, including several classes of vertebrate and invertebrate taxa. Surprisingly, however, the biophysical mechanisms and …
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Mechanisms of Compass Orientation in C57BL/6 Laboratory Mice
Compass orientation or menotaxis is defined as the ability to orient at a specific angle relative to a directional cue. Cues used for compass orientation include the sun, stars, moon, geomagnetic field and polarized light. While there is evidence in a variety of organisms for compass orientation, …
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Orientation in migratory birds: orientation mechanisms and their underlying neurobiological background
… and physiological mechanisms underlying the magnetic compass orientation of night-migratory birds. Behavioural observation show that night-migratory garden warblers (Sylvia borin) use stereotype sideways movement of the head (head scans) to detect the reference direction provided by the …
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Toward Auto-Calibration of Navigation Sensors for Miniature Autonomous Underwater Vehicles
… algorithms developed for an electronic magnetic compass and heading rate sensor. Development of the Autonomous Systems and Controls Laboratory's first miniature AUV is also presented.
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Kalman filter estimation of underwater vehicle position and attitude using Doppler velocity aided inertial motion unit
… accelerometers, roll and pitch sensors, gyro and magnetic compasses, depth sensor, and various types of acoustic positioning systems. A doppler velocimeter is added to this sensor suite to improve the performance of the filter. As an integral part of the filter, magnetic compass and gyrocompass …
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Single Transponder Range Only Navigation Geometry (STRONG) applied to REMUS autonomous under water vehicles
… algorithm vice dead reckon navigation with a magnetic compass and Doppler Velocity Log alone (DVL).
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Single Transponder Range Only Navigation Geometry (STRONG) applied to REMUS autonomous under water vehicles
… algorithm vice dead reckon navigation with a magnetic compass and Doppler Velocity Log alone (DVL)
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Scalable Autonomous Operations of Unmanned Assets
… a Unmanned Ground Vehicle (UGV) or a solar compass to a UAV; Position sensor accuracy of a GPS sensor on a UAV is improved by referencing the position of a UGV which is calculated by using three GPS sensors and Weighted Centroid Localization (WCL) method; Orientation sensor accuracy is …
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Investigating bird flight characteristics and habitat use to better understand ornithological impacts of wind farms
… with inbuilt laser rangefinder, digital magnetic compass and inclinometer, which has been applied to collection of bird flight data for estimating collision<br/>risk. This was undertaken using structures of known values and GPS technology, already applied to the collection of bird flight …