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 20 of 36 for “"sensor calibration"”.
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Simultaneous sensor calibration and path estimation
… presents two topics related to the simultaneous calibration of a network of imaging sensors, i.e. cameras, and the recovery of the trajectory of an object moving among those sensors. The non-overlapping fields of view for the cameras do not cover the entire scene, and therefore there are time …
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Methods for Optimal Model Fitting and Sensor Calibration
… registration. In this thesis the problem of sensor network self calibration is investigated. Sensor networks play an increasingly important role with the increased availability of mobile, antenna equipped, devices. The application areas can be extended with knowledge of the different sensors …
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Hyper-Spectral Sensor Calibration Extrapolated from Multi-Spectral Measurements
Hyper-spectral (HS) sensors are the instruments of choice for remote sensing applications involving environmental monitoring, littoral survey, and military assessment. Accurate band-to-band sensor radiometric calibration is critical for successful data mining of such HS spectral sets. Current …
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Deterministic sensor calibration methods for distributed inertial navigation systems
This Thesis was approved for publication on 2022-07-22 at 13:21.
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Design of a Testbed for Haptic Sensor Calibration and Characterization
… a 6-axis test bed for the characterization and calibration of haptic force sensors. This test bed can apply and measure contact forces up to 10N anywhere within a 60x60x60mm volume, at angles up to ±10 degrees from the normal. A procedure for haptic sensor calibration and characterization was …
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Robot kinematics: applications in virtual reality based pedagogy and sensor calibration
… robotics, virtual reality, and inertial sensors, this thesis investigates the effectiveness of using desktop virtual reality tools to help university-level students with the visualization of fundamental concepts in robot kinematics. Specifically, it examines how the new “Rotation Tool” …
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Person Profiles and Sensor Calibration for Intent Recognition in Socially Aware Navigation
… data more reliably. To do this tracking well, calibration between the sensors in critical, so we propose an iterative method for calibration that can produce a result not just for robots with sensors aligned toward the face of the target but also for sensor arrays that may observe the target …
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Toward Auto-Calibration of Navigation Sensors for Miniature Autonomous Underwater Vehicles
… components used in the vehicle. Availability of calibration algorithms built into the sensors also diminishes. Thus, there is a need for developing automatic sensor calibration techniques. This thesis presents the theoretical and simulation results of calibration algorithms developed for an …
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Microscopic and spectral characterisation of optical Fibre Bragg gratings
… structure FBGs were investigated using standard sensor calibration techniques which monitor wavelength shifts with changes in temperature and strain.
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Air Circulation Under Reduced Atmospheric Pressures
… capabilities. Data is collected using various sensors placed inside the Low</p> <p>Pressure Test Bed (LPTB) Chamber at Kennedy Space Center. Data from those sensors</p> <p>became non-linear at various pressures below 25 kPa. We introduced mathematical</p> <p>calibration corrections and found …
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A Study in Object Detection and Classification Performance by Sensing Modality for Autonomous Surface Vessels
… The evaluation methodology encompasses multi-sensor calibration, real-time performance analysis, and the introduction of a late-fusion strategy in the image frame to reduce bounding-box uncertainty. Performance metrics include training requirements, precision, recall, mean average precision …
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Statistical inference with unreliable binary observations
… in which a signal is observed by a set of sensors with uncertain parameters, such as highly scaled comparator circuits in an analog-to-digital converter. These sensor outputs are not used to form a quantized representation of the signal but are used directly to make decisions in statistical …
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Modeling the Thermal Performance of an Intelligent MEMS Pressure Sensor with Self-Calibration Capabilities
… increased the demand for more reliable pressure sensors. One of the best methods to ensure reliability is by regularly calibrating the sensor, checking its functionality and accuracy. By integrating a micro-actuator with a pressure sensor, the sensor can self-calibrate, eliminating the …
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Design of a Micro Wireless Instrumented Payload for Unmanned Vehicle Testing
… for the ARM7 processor was written to allow sensor calibration and data transmission, and a user interface was designed to run on a personal computer. The finished design is a tiny 3''x5''x1'', and weighs a mere 0.8 pounds including battery and antennas. It is capable of continuously …
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Observing Seasonal Cycles in Greenhouse Gas Fluxes with Automatic Flushing Chambers in a Low-Arctic Lake
… Chambers (AFCs) equipped with CH₄ and CO₂ sensors for continuous monitoring of GHG fluxes. Over the summer of 2024, four AFCs were deployed on Lake Badesø, located near Nuuk, Greenland, to measure fluxes during the ice-free season. The aims were to test the performance of low-cost sensors …
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Field-structured chemiresistors : tunable sensors for chemical-switch arrays
… to chemiresistors, which are resistance-based sensors for volatile organic compounds. This material is a polymer composite containing Au-coated magnetic particles organized into electrically conducting pathways by magnetic fields. This improved material overcomes the various problems inherent …
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Resource efficient information integration in cyber-physical systems
… the quality of information (QoI) provided by the sensor nodes and the consumption of system resources. On one hand, individual sensors are not reliable, due to various possible reasons including incomplete observations, environment and circuit board noise, poor sensor quality, lack of sensor …
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Optimization Of A Non-Contact Single Phase Drive Ultrasonic Micromotor: Via Design And Analysis Of Engineered Stator Curvature And Surface Acoustic Streaming Actuators
… micromotor as a rotation platform for inertial sensor calibration, we fabricated a gyroscope and showed a method of attaching a separate chip to a released motor using a focused ion beam nano-welding process.
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Overcoming Thermal Challenges to Acquire Absolute Pressure Measurements in Rotating Detonation Engines Using Piezoresistive Pressure Transducers
… simultaneously with pressure measurements. The sensor calibration is performed to obtain correlation between (a) sensor temperature and 5th-wire voltage output and (a) sensor temperature and zero-offset voltage output. The sensor was implemented in recessed configuration into an RDE. Thermal …
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Minimalist multi-agent filtering and guidance
… have allowed robots to be equipped with powerful sensors, complex actuators, computers with high processing capabilities, and high bandwidth communication links. This trend has enabled the development of sophisticated algorithms and systems to solve tasks such as navigation, patrolling, coverage, …
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