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.
Results
Showing 1 to 20 of 77 for “"Sensor performance"”.
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NAVSPASUR sensor performance study
The Naval Space Surveillance Command (NAVSPASUR) has been in existence since the late 1950's. Operating with a formidable array of three large transmitters and six receiving stations, the command has carried out the mission of surveilling and cataloging a
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Properties and sensor performance of zinc oxide thin films
Reactively sputtered ZnO thin film gas sensors were fabricated onto Si wafers. The atmosphere dependent electrical response of the ZnO micro arrays was examined. The effects of processing conditions on the properties and sensor performance of ZnO films were investigated. Using AFM, SEM, XRD and …
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Effects of wideband complex electromagnetic properties of soils on geophysical sensor performance, The
… and ground penetrating radar (GPR) suffer performance degradation as a function of site specific complex electromagnetic soil properties (permittivity, permeability and conductivity). Knowledge of these soil properties from the kHz to the GHz frequency range can be used to predict and …
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The Effects of Sensor Performance as Modeled by Signal Detection Theory on the Performance of Reinforcement Learning in a Target Acquisition Task
… experiences to increase their future mission performance. To achieve adaptive behavior and decision making capabilities this study used Reinforcement Learning algorithms. In this research the effects of sensor performance, as modeled through Signal Detection Theory (SDT), on the ability of RL …
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Development and evaluation of wind tunnel testing methodology for ADAS camera perception in rain
… weather, particularly rain, continues to degrade sensor perception and effectiveness. Despite this, few studies address sensor degradation due to rain, with no established standards for benchmarking sensor performance loss. The objective of this thesis is to develop a methodology that surpasses …
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Methodology development and evaluation of automotive LiDAR performance in rain
… cruise control, and emergency braking rely on sensors to capture environmental data. However, sensor performance degrades in adverse weather conditions. For instance, light detection and ranging (LiDAR) sensors are affected when driving in rain due to soiling, which causes light attenuation by …
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Development and Implementation of Laboratory Test Methods for the Evaluation of Wearable Head Impact Sensors
With a rise in wearable sensor technology and the desire to investigate head impacts in previously unstudied groups, wearable head impact sensors have reached nation-wide popularity for their promising benefits to consumers and researchers. However, there are risks in relying on such technology …
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Control and design of a single degree-of-freedom magnetic levitation demonstration
… and noise in both magnet physics and sensor performance can cause instability. This thesis investigates methods of building and controlling a stable, single degree-of-freedom magnetic suspension system that will be robust to changes in ambient conditions. Synchronous detection is a …
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Utilizing I/Q data to enhance radar detection and accuracy metrics
… advanced FPGAs into novel radio frequency (RF) sensors has resulted in significantly increased sensor capabilities while at the same time dramatically increasing the size of the data associated with test events. This work focuses on the development of management tools to analyze these large …
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Plasmonic Optical Sensors: Performance Analysis and Engineering Towards Biosensing
… of plasmonics. This thesis focuses on performance analysis for plasmonic sensors and implementation of plamonic optical sensors with novel nanofabrication techniques. A universal performance analysis model is established for general two-dimensional plasmonic sensors. This model is based …
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Maximizing AUV slow speed performance
… the same as that required for optimum sensor performance, a variable speed capability extending to the bottom of the vehicle speed range is sought. Optimizing Odyssey IIB AUV performance for slower speed operations and extended duration missions necessitates a multi-disciplinary review …
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Fingerprint testing protocols for optical sensors
… testing protocols for optical fingerprint sensors. Angle of rotation, translation, lighting, and device placement have been identified in this work as variables potentially affecting system performance and protocols were developed to evaluate their effects on optical fingerprint sensor …
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Low noise cmos image sensors
… tend to interfere with workflow. CMOS image sensors have been explored as a solution because of their high performance, low noise and small footprint. Reducing the noise floor on CMOS image sensors makes it possible to develop a general image sensor that can be used for several low light …
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Photonic Crystal Lorentz Force Magnetometer for Out-of-Plane Magnetic Field Sensing
… of highly sensitive and accurate microsensors is crucial for advancing modern sensing technologies with the goal of integrating increasingly complex circuits onto compact devices, such as smart phones and wearables. In this work, a Lorentz force magnetometer was designed based on the …
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Electro-optical systems and neural-inspired processing: A system architecture and technology analysis with applications to law enforcement small arms fire indication systems
… The technology focus is on electro-optical sensors and neural-inspired processing. Dual-color, high-rate, imaging, and high-performance indication systems are all evaluated. A platform-level design decomposition that starts with the customer needs and finishes with the sensor and processor …
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Utilization Of A Large-Scale Wireless Sensor Network For Intrusion Detection And Border Surveillance
… destinations marked for apprehension. Wireless Sensor Networks (WSNs) are promising for border security surveillance because they enable enforcement teams to monitor events in the physical environment. In this work, probabilistic models have been presented to investigate senor development …
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Planning under uncertainty for dynamic collision avoidance
… avoidance algorithm for every combination of sensor and aircraft configurations, we investigate automatic generation of collision avoidance algorithms given models of aircraft dynamics, sensor performance, and intruder behavior. We first formulate the problem within the Partially Observable …
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Development of Electrochemical Immunosensor for Oral Cancer: Initial Outcome
… use of a nanoengineered electrochemical immunosensor targeting the S100A7 protein, a biomarker associated with OSCC risk. The biosensor's sensitivity and specificity were assessed across a range of clinically relevant concentrations in artificial serum and artificial saliva, simulating …
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High resolution, low cost, privacy preserving human motion tracking system via passive thermal sensing
… from an array of inexpensive single-bit thermal sensors. Since thermal sensor performance is currently limited by lengthy refractory periods, the motion tracking system is further developed in the visible spectrum to demonstrate a proof of concept. A single array of sensors is coupled with …
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Inverse Problems in Structural Mechanics
… of a distributed sensing fiber optic sensor for a smart bed using Genetic Algorithms (GA), where the sensor performance is maximized. The sensing fiber optic cable is represented by a Non-uniform Rational B-Splines (NURBS) curve, which changes the placement of a set of infinite number …
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