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Article
Open AccessGreatBlue: a 55-Pound Vertical-Takeoff-and-Landing Fixed-Wing sUAS for Science; Systems, Communication, Simulation, Data Processing, Payloads, Package Delivery, and Mission Flight Performance
As small, uncrewed systems (sUAS) grow in popularity and in number, larger and larger drone aircraft will become more common–up to the FAA limit of 55 pound gross take-off weight (GTOW) and beyond. Due to thei...
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Article
Correction to: Spatial estimation of actual evapotranspiration over irrigated turfgrass using sUAS thermal and multispectral imagery and TSEB model
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Article
Spatial estimation of actual evapotranspiration over irrigated turfgrass using sUAS thermal and multispectral imagery and TSEB model
Green urban areas are increasingly affected by water scarcity and climate change. The combination of warmer temperatures and increasing drought poses substantial challenges for water management of urban landsc...
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Article
LAI estimation across California vineyards using sUAS multi-seasonal multi-spectral, thermal, and elevation information and machine learning
In agriculture, leaf area index (LAI) is an important variable that describes occurring biomass and relates to the distribution of energy fluxes and evapotranspiration components. Current LAI estimation method...
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Article
Downscaling UAV land surface temperature using a coupled wavelet-machine learning-optimization algorithm and its impact on evapotranspiration
Monitoring evapotranspiration (ET) is possible through land surface temperature (LST) measured by satellites and unmanned aerial vehicles (UAV). The assumption that the higher resolution of LST may improve the...
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Article
Assessment of different methods for shadow detection in high-resolution optical imagery and evaluation of shadow impact on calculation of NDVI, and evapotranspiration
Significant efforts have been made recently in the application of high-resolution remote sensing imagery (i.e., sub-meter) captured by unmanned aerial vehicles (UAVs) for precision agricultural applications fo...
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Reference Work Entry In depth
Cyber-Physical Systems Enabled by Small Unmanned Aerial Vehicles
Cyber-physical systems (CPS) are tightly coupled systems of hardware and software providing large-scale, closed-loop control or management of high-level, complex dynamical systems. Effective cyber-physical sys...
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Reference Work Entry In depth
Concept of Operations of Small Unmanned Aerial Systems: Basis for Airworthiness Towards Personal Remote Sensing
Unmanned aerial systems (UASs) have rapidly grown into a significant application for civilian operations. However, regulations and guidelines have lagged, leading to uncertainty for domestic development. Withi...
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Article
Battery State-Of-Charge Based Altitude Controller for Small, Low Cost Multirotor Unmanned Aerial Vehicles
Small unmanned aerial vehicles (UAV) are typically driven by Lithium polymer batteries. The batteries have their own dynamics, which changes during discharge. Classical approaches to altitude control assume a ...
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Article
A Survey and Categorization of Small Low-Cost Unmanned Aerial Vehicle System Identification
Remote sensing has traditionally be done with satellites and manned aircraft. While these methods can yield useful scientific data, satellites and manned aircraft have limitations in data frequency, process ti...
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Article
Pitch Loop Control of a VTOL UAV Using Fractional Order Controller
Pitch loop control is the fundamental tuning step for vertical takeoff and landing (VTOL) unmanned aerial vehicles (UAVs), and has significant impact on the flight. In this paper, a fractional order strategy i...
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Article
Fractional-Order Complementary Filters for Small Unmanned Aerial System Navigation
Orientation estimation is very important for development of unmanned aerial systems (UASs), and is performed by combining data from several sources and sensors. Kalman filters are widely used for this task, ho...
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Article
Concept of Operations for Personal Remote Sensing Unmanned Aerial Systems
Unmanned Aerial Systems (UASs) have rapidly grown into a significant part of the world-wide aviation budget. However, regulations and official standards have lagged significantly. Within the U.S., there has be...
