Results 101 to 110 of about 11,538 (196)

Drones and the Fourth Amendment: Redefining Expectations of Privacy [PDF]

, 2015
Drones have gained notoriety as a weapon against foreign terrorist targets; yet, they have also recently made headlines as an instrument for domestic surveillance.
Koerner, Matthew R.
core   +1 more source

Training of Crisis Mappers and Map Production from Multi-sensor Data: Vernazza Case Study (Cinque Terre National Park, Italy) [PDF]

, 2012
This aim of paper is to presents the development of a multidisciplinary project carried out by the cooperation between Politecnico di Torino and ITHACA (Information Technology for Humanitarian Assistance, Cooperation and Action).
Boccardo, Piero, Chiabrando, Filiberto, Facello, Anna, Gnavi, Loretta, Lingua, Andrea Maria, Maschio, Paolo Felice, Pasquale, F., Spanò, A.   +7 more
core  

Review of agricultural spraying technologies for plant protection using unmanned aerial vehicle (UAV) [PDF]

International Journal of Agricultural and Biological Engineering, 2021
Haibo Chen, Yubin Lan, Bradley K Fritz, W. Clint Hoffmann, Shengbo Liu   +4 more
openaire   +1 more source

The potential of geospatial technology for monitoring peatland environments [PDF]

, 2018
There have been significant advances in the spectral and spatial resolution of data collected from spaceborne, airborne and terrestrial based geospatial technologies over the past 20 years.
Chico, G, Clutterbuck, B, Labadz, J, Midgley, N   +3 more
core  

Reducing environmental exposure to PPPs in super-high density olive orchards using UAV sprayers

Frontiers in Plant Science
The increasing demand for optimizing the use of agricultural resources will require the adoption of cutting-edge technologies and precision farming management.
Luis Sánchez-Fernández, María Barrera-Báez, Jorge Martínez-Guanter, Manuel Pérez-Ruiz   +3 more
doaj   +1 more source

Codebook-Based Beam Tracking for Conformal ArrayEnabled UAV MmWave Networks

, 2020
Millimeter wave (mmWave) communications can potentially meet the high data-rate requirements of unmanned aerial vehicle (UAV) networks. However, as the prerequisite of mmWave communications, the narrow directional beam tracking is very challenging ...
Gao, Hui, Han, Zhu, Pan, Miao, Xu, Wenjun, Zhang, Jinglin, Zhang, Ping   +5 more
core  

Research on distance measurement of plant protection UAV based on millimeter-wave radar

Journal of Physics: Conference Series
Abstract Plant protection UAVs need to be kept at a certain altitude to ensure the safety of UAV operations when performing imitation ground flight operations. Aiming at the problems of limited measuring range, weak anti-jamming ability, and high cost of UAV altimetry sensors, a UAV altimetry method based on millimeter-wave radar is ...
Yongwei Yu, Kai Liu, Liuqing Du
openaire   +1 more source

Small Quadrotor Plant Protection UAV System Based on Big Data

IOP Conference Series: Materials Science and Engineering, 2018
Shuting Zeng, Qingfeng Xia
openaire   +1 more source

Multi-stage bidirectional informed-RRT * plant protection UAV path planning method based on A * algorithm domain guidance. [PDF]

Front Plant Sci
Li J, Gao Y, Li Z, Zhang W, Yu W, Hu Y, Liu H, Li C.   +7 more
europepmc   +1 more source

Determination of the effective swath of a plant protection UAV adapted to mist nozzles in mountain Nangguo pear orchards. [PDF]

Front Plant Sci
Liu Y, Yao W, Guo S, Yan H, Yu Z, Meng S, Chen D, Chen C.   +7 more
europepmc   +1 more source