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Full-Text Articles in Engineering
On The Enhancement Of Penetrating Radar Target Location Accuracy With Visual-Inertial Slam, Joshua Girard
On The Enhancement Of Penetrating Radar Target Location Accuracy With Visual-Inertial Slam, Joshua Girard
Graduate College Dissertations and Theses
This paper presents research concerning the use of visual-inertial Simultaneous Localization And Mapping (SLAM) algorithms to aid in Continuous Wave (CW) radar target mapping. SLAM is an established field in which radarhas been used to internally contribute to the localization algorithms. Instead, the application in this case is to use SLAM outputs to localize radar data and construct three-dimensional target maps which can be viewed in augmented reality. These methods are transferable to other types of radar units and sensors, but this paper presents the research showing how the methods can be applied to calculate depth efficiently with CW radar …
Open-Source Wearable Sensors For Detecting Fall Risk In Patients With Multiple Sclerosis, Conor Joyce
Open-Source Wearable Sensors For Detecting Fall Risk In Patients With Multiple Sclerosis, Conor Joyce
Graduate College Dissertations and Theses
Wearable sensors are growing in popularity in the medical field to help measurephysiological signals from patients. The M-Sense Research Group at the University of Vermont uses wearable sensors to measure accelerometer and gyroscope data of patients with multiple sclerosis amongst other clinical applications. The sensors are attached directly to a patient’s skin on the chest and thigh and are worn for anywhere from an hour or two when being monitored in the lab or for five weeks when wearing the sensors at home. Current wearable sensors are closed source and do not allow recorded data to be seen in real …
Reference Governors For Mimo Systems And Preview Control: Theory, Algorithms, And Practical Applications, Yudan Liu
Graduate College Dissertations and Theses
The Reference Governor (RG) is a methodology based on predictive control for constraint management of pre-stablized closed-loop systems. This problem is motivated by the fact that control systems are usually subject to physical restrictions, hardware protection, and safety and efficiency considerations. The goal of RG is to optimize the tracking performance while ensuring that the constraints are satisfied. Due to structural limitations of RG, however, these requirements are difficult to meet for Multi-Input Multi-Output (MIMO) systems or systems with preview information. Hence, in this dissertation, three extensions of RG for constraint management of these classes of systems are developed. The …
Constraint-Aware And Efficiency-Aware Control Of Air-Path In Fuel Cell Vehicles, Eli Bacher-Chong
Constraint-Aware And Efficiency-Aware Control Of Air-Path In Fuel Cell Vehicles, Eli Bacher-Chong
Graduate College Dissertations and Theses
Fuel cell technology offers the potential for clean, efficient, robust energy productionfor both stationary and mobile applications. But without fast and robust control systems, fuel cells cannot hope to maintain real-life efficiencies near enough to their theoretical potential. This work studies control and constraint management techniques to regulate a nonlinear multivariable air-path system for a proton exchange membrane fuel cell (PEMFC). The control objectives are to avoid oxygen starvation, run at the maximum net efficiency, achieve fast tracking of air flow and pressure set-points, and be easy to calibrate. To operate at maximum efficiency, a set-point map is generated for …
Three Branch Diversity Systems For Multi-Hop Iot Networks, Sakil Ahmed Chowdhury
Three Branch Diversity Systems For Multi-Hop Iot Networks, Sakil Ahmed Chowdhury
Graduate College Dissertations and Theses
Internet of Things (IoT) is an emerging technological paradigm connecting numerous smart objects for advanced applications ranging from home automation to industrial control to healthcare. The rapid development of wireless technologies and miniature embedded devices has enabled IoT systems for such applications, which have been deployed in a variety of environments. One of the factors limiting the performance of IoT devices is the multipath fading caused by reflectors and attenuators present in the environment where these devices are deployed. Leveraging polarization diversity is a well-known technique to mitigate the deep signal fades and depolarization effects caused by multipath. However, neither …