Measurement and Analysis Methods for Determination of Effective Swath Width from Unmanned Aerial Vehicles

2020 ◽  
pp. 62-85
Author(s):  
Bradley K. Fritz ◽  
Daniel E. Martin
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Aerial Vehicles ◽  
Analysis Methods ◽  
Measurement And Analysis

A Method for Estimating the Area of Damaged Croplands and Woodlands with the Use of Unmanned Aerial Vehicles (Drones)

2017 ◽  
Author(s):  
Tomasz Podciborski ◽  
Jacek Kil
Keyword(s):  
Natural Disasters ◽  
Unmanned Aerial Vehicles ◽  
Spatial Information ◽  
Rapid Development ◽  
Spatial Development ◽  
Measurement Methods ◽  
Loss Assessment ◽  
Aerial Vehicles ◽  
Extent Of Damage

Growing social demand for access to spatial information spurs the rapid development of measurement methods and systems for registering the results of spatial evaluations and analyses (Kwietniewski 2008). Any assessment of spatial development is carried out on the basis of information obtained from specific sources (Kowalczyk 2007). The main objective of this study was to propose a method for assessing the extent of damage caused by natural disasters to croplands and woodlands with the use of unmanned aerial vehicles (drones). The main aim was achieved through detailed goals, including determination of the causes of natural disasters, description of the field inspection procedure and development of loss assessment principles. The proposed method was verified in selected research sites, and the resulting damage report detailing cropland losses is presented in the study.

Determination of the spectral characteristics of the rough water surface on digital photographs from unmanned aerial vehicles

2018 ◽  
Vol 62 (6) ◽  
pp. 703-711
Author(s):  
Malinnikov V.A. ◽  
◽  
Uchaev D.V. ◽  
Uchaev Dm.V. ◽  
Silevich A.S. ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Water Surface ◽  
Spectral Characteristics ◽  
Digital Photographs ◽  
Aerial Vehicles ◽  
Rough Water

scholarly journals SURVEY OF ARCHAEOLOGICAL SITES OF GORNY ALTAY USING UAV

2021 ◽  
Vol 26 (2) ◽  
pp. 56-64
Author(s):  
Evgeny P. Krupochkin ◽  
◽  
Sergei I. Sukhanov ◽  
Dmitry A. Vorobyov ◽  
◽  
...  
Keyword(s):  
Coordinate System ◽  
Unmanned Aerial Vehicles ◽  
Local Coordinate System ◽  
Archaeological Sites ◽  
Control Points ◽  
Heritage Sites ◽  
Gps Survey ◽  
Aerial Vehicles ◽  
Russian Federa Tion

The article describes a methodology for determining the boundaries of archaeological sites using GPS survey and unmanned aerial vehicles (UAVs) with subsequent registration in the cadastral record. The method of georeferencing and photogrammetric processing of orthophotomaps using a system of control points has been tested. The digital photogrammetric program Agisoft Metashape (company Agisoft LLC, St. Petersburg) was chosen for the research. By means the program an orthomosaic was obtained with georeferencing with the Local Coordinate System (LCS-04). The result of the work was the construction of topographic plans and the determination of the boundaries of archaeological sites in accordance with the "Methodology for determining the boundaries of the territories of archaeologi-cal heritage sites, recommended for use by the letter of the Ministry of Culture of the Russian Federa-tion No. 12-01- 39/05-AB dated 27.01.2012".

scholarly journals PROCESSING ECHO SIGNALS REFLECTED FROM UNMANNED AERIAL VEHICLES AND RECEIVED BY RADAR

T-Comm ◽  
2021 ◽  
Vol 15 (9) ◽  
pp. 48-54
Author(s):  
Ivan D. Petrov ◽  
◽  
Viacheslav P. Shkodyrev ◽  
Keyword(s):  
Spectral Analysis ◽  
Unmanned Aerial Vehicles ◽  
Unmanned Aircraft ◽  
Spectral Signature ◽  
Modern World ◽  
Future Research ◽  
Spectral Signatures ◽  
Aerial Vehicles ◽  
Deep Integration

In the modern world, with the surge of usage of the unmanned aerial vehicles many tasks related to detection of aerial objects have arisen and also the determination of their type within the cities and the countryside. Such tasks are the recognition and classification of aerial objects using radar stations. Aerial objects that need to be detected usually are unmanned aircraft and birds. Processing the signal received by radar from the aerial object to obtain a proper spectral signature is needed to solve such tasks. The most informative detail for determining the type of the aerial object is the presence or absence of the micro-Doppler effect in the spectral signatures. The perpose of this paper is to carry out and compare two strategies for filtering echo signals from interference and obtaining their spectral signatures. The first strategy involves application of several methods for filtering the echo signal, followed by a standard spectral analysis. The second strategy adds to the previous one the use of an autocorrelation and calculating spectral density. Comparison of the of the applied strategies for processing echo signals from aerial objects showed that the use of the autocorrelation results in a more pronounced, regular and refined spectral signature relative to the first approach with only filtering and spectral analysis . The application of these strategies for processing signals reflected from aerial objects will be used in a future research to design a system with deep integration of the physical and computational components.

scholarly journals АНАЛІЗ СУЧАСНОГО СТАНУ РОЗВИТКУ ВИСОТНИХ БЕЗПІЛОТНИХ ЛІТАЛЬНИХ АПАРАТІВ

2019 ◽  
pp. 28-41
Author(s):  
Тамара Павловна Цепляева ◽  
Антон Юрьевич Мигунов
Keyword(s):  
High Altitude ◽  
Unmanned Aerial Vehicles ◽  
Statistical Data ◽  
Unmanned Vehicles ◽  
Future Research ◽  
Aerial Vehicles ◽  
Wide Range ◽  
Range Of Functions

The development of unmanned aerial vehicles, at this time, is of great interest, both of the largest aircraft building companies and design enthusiasts, and among the total amount of development, the volume of high-altitude unmanned vehicles occupies one of the leading positions. In this regard, a very topical issue is the analysis of existing developments and the determination of the vector of future research in this direction. High-altitude unmanned vehicles have a wide range of functions, both in the field of military and civilian use. The work collected and analyzed statistical data of high-altitude unmanned aerial vehicles to determine advances in the design of high-altitude unmanned aerial vehicles (UAVs). The current classification of UAVs was considered, as a result of the analysis of statistical data, options for its expansion were proposed. The flight characteristics of high-altitude UAVs are described. There are charts and tables showing the place of highaltitude UAVs in their total number. Also, flight performance, aerodynamic schemes and engine type, which are the most rational for high-altitude unmanned aerial vehicles according to their purpose and class, are defined.

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