Search Constraints

Start Over
Filtering by: Subject Drone aircraft Remove constraint Subject: Drone aircraft Resource Type Masters Thesis Remove constraint Resource Type: Masters Thesis

Search Results

  • Unmanned aircraft systems for bridge inspection : testing and developing end-to-end operational workflow

    Creator:
    Gillins, Matthew N.
    Abstract:
    Bridge inspections are vital for monitoring the health and serviceability of transportation infrastructure throughout the world. However, inspections can be logistically-challenging, expensive, and dangerous. For example, inspections may require climbing, as well as the use of scaffolding, ladders, rescue boats, bucket trucks, and/or under-bridge inspection vehicles. Small, multirotor unmanned aircraft...
    Resource Type:
    Masters Thesis
    Full Text:
    : Unmanned Aircraft Systems for Bridge Inspection: Testing and Developing End- to-End Operational Workflow

  • Pacific Madrone Leaf Blight Detection with Unmanned Aerial Systems and Machine Learning

    Creator:
    Barker, Matthew I.
    Abstract:
    Ground-based assessments of foliar diseases including leaf blight are time-consuming and costly. We investigated the potential for using an unmanned aerial system (UAS) in conjunction with a multispectral sensor to determine whether we could more efficiently and reliably detect and quantify leaf blight in Pacific madrones. Our methods included ground-based...
    Resource Type:
    Masters Thesis
    Full Text:
    , unmanned aircraft systems, image processing, machine learning, and many others. I had little prior

  • A Multivariate Comparison of Drone-Based Structure from Motion and Drone-Based Lidar for Dense Topographic Mapping Applications

    Creator:
    Simpson, Chase H.
    Abstract:
    Unmanned aircraft systems (UAS), also known as drones, are an increasingly popular method of collecting surveying and mapping data. Two common drone-based mapping techniques are lidar and structure from motion (SfM) photogrammetry, and a frequently-heard (yet nearly impossible to answer) question is: “which is better?” The most common metric for...
    Resource Type:
    Masters Thesis
    Full Text:
    November 14, 2018. Title: A Multivariate Comparison of Drone-Based Structure from Motion and Drone

  • Target-based coverage extension of 802.11 MANETs via constrained UAV mobility

    Creator:
    Johnson, Taylor N.
    Abstract:
    MANETs are known to be useful in situations where mobile nodes need to communicate and coordinate in dynamic environments with no access to fixed network infrastructure. However, connectivity problems can occur when sub-groups within a MANET move out of communication range from one another. The increasingly prolific use of UAVs...
    Resource Type:
    Masters Thesis
    Full Text:
    increase connectivity. 3.1. Constant-Radius Movement Decision Model Fixed wing aircraft such as UAVs are

  • Development of mullite-zirconia composite feedstocks for powder injection molding

    Creator:
    Martin, Renee A.
    Abstract:
    Mullite-zirconia composites have been slated for use in a novel miniature ceramic turbine engine components developed for unmanned air vehicle (UAV) engine applications. Economically feasible production of these complex components requires the use of a near-net shape process such as powder injection molding (PIM). This thesis explores the development and...
    Resource Type:
    Masters Thesis

  • A hierarchical neuro-evolutionary approach to small quadrotor control

    Creator:
    Shepherd, Jack F., III
    Abstract:
    Quadrotors are unique among Micro Aerial Vehicles in providing excellent maneuverability (as opposed to winged flight),while maintaing a simple mechanical construction (as opposed to helicopters). This mechanical simplicity comes at a cost of increased controller complexity. Quadrotors are inherently unstable, in the sense that they are essentially unflyable by a...
    Resource Type:
    Masters Thesis
    Full Text:
    territory. Similarly military missions employ surveillance aircraft and ground scouts. Although immediate

  • Lift Enhancement of Pliant Wings Through Bio-Mimicry

    Creator:
    Osterberg, Nathaniel Brent
    Abstract:
    Flexible aerodynamic surfaces have been shown to favorably influence flight characteristics at low Reynolds numbers by increasing lift, angle of attack at stall, and resistance to perturbation. The objective of the research presented within this thesis is to investigate the influence of two aspects of flight observed in biological flyers,...
    Resource Type:
    Masters Thesis
    Full Text:
    . Micro aerial vehicles (MAVs) or aircraft that are smaller than 15 cm in all dimensions and operate at

  • Multi-Robot Coordination : Applications in Orchard Bin Management and Informative Path Planning

    Creator:
    Zhang, Yawei
    Abstract:
    Efficient coordination is desired for multi-robot systems in many scenarios. In this research, we first provide a multi-robot system to help human workers during tree fruit harvest. We present an auction-based method to coordinate a team of self-propelled bin carriers to retrieve fruit bins. Second, we propose a more general...
    Resource Type:
    Masters Thesis

  • Learning-based control and coordination of autonomous UAVs

    Creator:
    Bell, Adam R.
    Abstract:
    Uninhabited aerial vehicles, also called UAVs are currently controller by a combination of a human pilot at a remote location, and autopilot systems similar to those found on commercial aircraft. As UAVs transition from remote piloting to fully autonomous operation, control laws must be developed for the tasks to be...
    Resource Type:
    Masters Thesis
    Full Text:
    autopilot systems similar to those found on commercial aircraft. As UAVs transition from remote piloting

  • Planning Under Uncertainty for Unmanned Aerial Vehicles

    Creator:
    Skeele, Ryan
    Abstract:
    Unmanned aerial vehicle (UAV) technology has grown out of traditional research and military applications and has captivated the commercial and consumer markets, showing the ability to perform a spectrum of autonomous functions. This technology has the capability of saving lives in search and rescue, fighting wildfires in environmental monitoring, and...
    Resource Type:
    Masters Thesis