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Zhenxin Zhang, Meng Zhang, Guoxi Li, Shilong Qin and Chunxiao Xu
The actuator, which generally consists of motors, electrical regulations, and propellers, is the key component of the quadrotor Unmanned Aerial Vehicle. During the operation of the UAV, actuators are prone to degrade performance and even cause serious fa...
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Ioannis K. Kapoulas, Antonios Hatziefremidis, A. K. Baldoukas, Evangelos S. Valamontes and J. C. Statharas
Various types of small drones constitute a modern threat for infrastructure and hardware, as well as for humans; thus, special-purpose radar has been developed in the last years in order to identify such drones. When studying the radar signatures, we obs...
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Yutao Jing, Xianghe Wang, Juan Heredia-Juesas, Charles Fortner, Christopher Giacomo, Rifat Sipahi and Jose Martinez-Lorenzo
This work designed a disturbance-observer-based nonlinear sliding mode surface controller (SMC) and validated the controller using a simulated PX4-conducted quadcopter. To achieve this goal, this research (1) developed a dynamic mathematical model; (2) b...
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Muhammad Baber Sial, Yuwei Zhang, Shaoping Wang, Sara Ali, Xinjiang Wang, Xinyu Yang, Zirui Liao and Zunheng Yang
Most of the recent research on distributed formation control of unmanned aerial vehicle (UAV) swarms is founded on position, distance, and displacement-based approaches; however, a very promising approach, i.e., bearing-based formation control, is still ...
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Adrien Michez, Stéphane Broset and Philippe Lejeune
In the context of global biodiversity loss, wildlife population monitoring is a major challenge. Some innovative techniques such as the use of drones?also called unmanned aerial vehicle/system (UAV/UAS)?offer promising opportunities. The potential of UAS...
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Giuseppe Ciaburro and Gino Iannace
In recent years, security in urban areas has gradually assumed a central position, focusing increasing attention on citizens, institutions and political forces. Security problems have a different nature?to name a few, we can think of the problems derivin...
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Ola Hall, Sigrun Dahlin, Håkan Marstorp, Maria Francisca Archila Bustos, Ingrid Öborn and Magnus Jirström
Yield estimates and yield gap analysis are important for identifying poor agricultural productivity. Remote sensing holds great promise for measuring yield and thus determining yield gaps. Farming systems in sub-Saharan Africa (SSA) are commonly characte...
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Ibrahim Wahab, Ola Hall and Magnus Jirström
The application of remote sensing methods to assess crop vigor and yields has had limited applications in Sub-Saharan Africa (SSA) due largely to limitations associated with satellite images. The increasing use of unmanned aerial vehicles in recent times...
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Ângela Maria Klein Hentz, Paul J. Kinder, Jason A. Hubbart and Elliott Kellner
Physical Habitat Assessments (PHA) are useful to characterize and monitor stream and river habitat conditions, but can be costly and time-consuming. Alternative methods for data collection are getting attention, such as Unmanned Aerial Vehicles (UAV). Th...
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