Browsing OU - Theses by Author "Chilson, Phillip"
Now showing items 1-12 of 12
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Antenna Synthesis Through Characteristic Modal Analysis for Small Unmanned Aerial System Applications
Robinson, Garrett (2019-05-10)Historically, antennas for airborne applications have been a separate class unto themselves. They have unique requirements for conformality, structural integrity, and long-range communication. Furthermore, the must ... -
AN ASSESSMENT OF OKLAHOMA WINTER WEATHER THROUGH THE HIGH-RESOLUTION LENS OF UNMANNED AERIAL VEHICLES
Tripp, Daniel (2019-12-13)Winter weather can lead to power grid failures, disruption of transportation, and can impact the local economy. Specifically in the southern Great Plains, short term model analyses struggle to identify the depth and magnitude ... -
Boundary Layer Profiling Using Rotary-Wing Unmanned Aircraft Systems: Filling the Atmospheric Data Gap
Greene, Brian (2018-08)The planetary boundary layer (PBL) is comprised of energy exchanges with the Earth’s surface, and as such plays a large factor in the evolution of weather con- ditions. However, traditional methods of observing the atmosphere, ... -
The Design and Manufacture of a Vertical Takeoff and Landing Fixed Wing Unmanned Aerial System for Use in Atmospheric Sampling
Logue, Jordan (2019-12)The creation of a prototype vertical takeoff and landing fixed wing unmanned aerial system for use in sampling of trace gases, aerosols, and volatile organic compounds is described. A conceptual design framework is devised ... -
Exploring Tornado Debris Signature Hypotheses Using Radar Simulations and Large-Eddy Simulations
Cross, Rachael (2021)Tornadoes can loft various types and sizes of debris, sometimes resulting in a polarimetric radar signature called the TDS (Tornado Debris Signature). The presence of a TDS in the radar data can help confirm the occurrence ... -
Macroscale population estimates for a migrant songbird using weather radar
Broadfoot, Kyle (2017)Changes in migratory bird populations can signal environmental change occurring on the wintering grounds, the breeding grounds, or along the migratory route between them. Aerial insectivores (swifts, swallows, etc.) ... -
Observations of Cold Front Features at High Spatiotemporal Resolution Using the Atmospheric Imaging Radar
Mahre, William Andrew (2016-08-12)Over the past 40+ years, cold front vertical structure has been studied for the purpose of increased understanding of convection initiation and aviation safety. Traditional scanning radars tend to not be well-suited for ... -
Observing system simulation experiment studies on the use of small UAV for boundary-layer sampling
Moore, Andrew (2018)A long-desired component to the U.S. operational observing systems is the capability to measure vertical profiles of wind, temperature and moisture in the lower troposphere at high spatial and temporal resolution. This ... -
Observing System Simulation Experiments Using Small Unmanned Aerial Vehicles in Various Configurations to Improve High-Resolution Forecasts of Convection
Shenoy, Vivek (2021)There has been a lot of interest and development of small Unmanned Aerial Vehicles (sUAVs) to obtain atmospheric measurements for research and operations. Some have proposed a 3D Mesonet concept to add vertical profiling ... -
Spatially-Temporally Resolved Sampling System for Carbon Dioxide Concentration in The Atmospheric Boundary Layer: A Low-Cost UAS Approach
Britto Hupsel de Azevedo, Gustavo (2020-05-08)Given the consensus around the importance of atmospheric carbon dioxide (CO2) to human life on earth, its monitoring has grown significantly in the past 60 years. However, there is still a knowledge gap regarding the ... -
Structure-Independent Conformal Quasi-Isotropic Antennas for Small Unmanned Aircraft System Applications
Poydence, Taylor (2017-12-15)Communication systems for aircraft are often implemented through antennas that protrude from the airframe and contain radiation nulls - which have detrimental effects on the aerodynamics of the craft and its ability to ... -
UAV-Based In Situ Antenna Characterization: Analysis and Design Requirements
Duthoit, Simon (2018-05-11)This thesis proposes to characterize antennas in situ with Unmanned Aerial Vehicles (UAVs), especially within the framework of weather radar and 5th generation wireless systems (5G) antennas. Specifically, it is concerned ...