Log in

Relevant bibliographies by topics / Rotary-wing UAV / Journal articles

To see the other types of publications on this topic, follow the link: Rotary-wing UAV.

Journal articles on the topic 'Rotary-wing UAV'

Author: Grafiati

Published: 4 June 2021

Last updated: 19 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Rotary-wing UAV.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Krishnakumar, R., K. Senthil Kumar, and T. Anand. "Design and Development of Vertical Takeoff and Horizontal Transition Mini Unmanned Aerial Vehicle." Advanced Materials Research 1016 (August 2014): 436–40. http://dx.doi.org/10.4028/www.scientific.net/amr.1016.436.

Full text

Abstract:

In recent years Unmanned Aerial Vehicles (UAV) has become a significant segment of the aviation industry. They can be chosen to be designed as fixed wing or Rotary wing type. Fixed-wing aircraft has the performance of fast forward movement, long range and superior endurance due to its gliding capabilities with no power. Unlike the fixed wing models, rotary wing mini-copters are able to fly in all directions, hover in a fixed position with minimal space for takeoff and landing. This makes them the perfect instrument for detailed inspection work or surveying. Implementing a hybrid UAV has the ad

APA, Harvard, Vancouver, ISO, and other styles

2

Peng, Kemao. "Autonomous Mission Management Based Nonlinear Flight Control Design for a Class of Hybrid Unmanned Aerial Vehicles." Guidance, Navigation and Control 01, no. 02 (June 2021): 2150009. http://dx.doi.org/10.1142/s2737480721500096.

Full text

Abstract:

In this paper, a nonlinear flight control law is designed for a hybrid unmanned aerial vehicle (UAV) to achieve the advanced flight performances with the autonomous mission management (AMM). The hybrid UAV is capable of hovering like quadrotors and maneuvering as fixed-wing aircraft. The main idea is to design the flight control laws in modules. Those modules are organized online by the autonomous mission management. Such online organization will improve the UAV autonomy. One of the challenges is to execute the transition flight between the rotary-wing and fixed-wing modes. The resulting close

APA, Harvard, Vancouver, ISO, and other styles

3

ÜNAL, Beytullah, Tamer SAVAŞ, and Işıl YAZAR. "DESIGN OF A SPRAYING QUADCOPTER." First Issue of 2019, no. 2019.01 (December 18, 2019): 3–9. http://dx.doi.org/10.23890/ijast.2019.0101.

Full text

Abstract:

Today, coupled with technological development, UAV (Unmanned Aero Vehicle) systems show an important improvement in civil area applications. UAV systems have active tasks with cost-effectively solutions in several areas like defense, logistics, engineering and agriculture. Especially, in agricultural applications, UAV system usage contributes to development of the critical parameters of this sector as efficiency and sustainability. Thus, in agricultural areas, improvement and usage of unmanned systems are of importance. In this study, a remote control rotary wing UAV system that has ability to

APA, Harvard, Vancouver, ISO, and other styles

4

Gonzalez, José Cerdeira, Roberto Ortiz Garrido, and Antonio Eduardo Carrilho da Cunha. "Rotary-Wing UAV Mission Planning Aided by Supervisory Control." IFAC Proceedings Volumes 43, no. 12 (2010): 324–30. http://dx.doi.org/10.3182/20100830-3-de-4013.00054.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Zhan, Cheng, and Renjie Huang. "Energy Efficient Adaptive Video Streaming With Rotary-Wing UAV." IEEE Transactions on Vehicular Technology 69, no. 7 (July 2020): 8040–44. http://dx.doi.org/10.1109/tvt.2020.2993303.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Ahmed, Bilal, Hemanshu R. Pota, and Matt Garratt. "Flight control of a rotary wing UAV using backstepping." International Journal of Robust and Nonlinear Control 20, no. 6 (May 12, 2009): 639–58. http://dx.doi.org/10.1002/rnc.1458.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Zeng, Yong, Jie Xu, and Rui Zhang. "Energy Minimization for Wireless Communication With Rotary-Wing UAV." IEEE Transactions on Wireless Communications 18, no. 4 (April 2019): 2329–45. http://dx.doi.org/10.1109/twc.2019.2902559.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Yan, Hua, Yunfei Chen, and Shuang-Hua Yang. "New Energy Consumption Model for Rotary-Wing UAV Propulsion." IEEE Wireless Communications Letters 10, no. 9 (September 2021): 2009–12. http://dx.doi.org/10.1109/lwc.2021.3090772.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Guo, Huiqiang, Mingzhe Li, Pengfei Sun, Changfeng Zhao, Wenjie Zuo, and Xiaoying Li. "Lightweight and maintainable rotary-wing UAV frame from configurable design to detailed design." Advances in Mechanical Engineering 13, no. 7 (July 2021): 168781402110349. http://dx.doi.org/10.1177/16878140211034999.

Full text

Abstract:

Rotary-wing unmanned aerial vehicles (UAVs) are widespread in both the military and civilian applications. However, there are still some problems for the UAV design such as the long design period, high manufacturing cost, and difficulty in maintenance. Therefore, this paper proposes a novel design method to obtain a lightweight and maintainable UAV frame from configurable design to detailed design. First, configurable design is implemented to determine the initial design domain of the UAV frame. Second, topology optimization method based on inertia relief theory is used to transform the initia

APA, Harvard, Vancouver, ISO, and other styles

10

Kumar, K. Senthil, and A. Mohamed Rasheed. "Development of Rotary Wing Mini UAS for Civilian Applications." Unmanned Systems 01, no. 02 (October 2013): 247–58. http://dx.doi.org/10.1142/s2301385013400050.

Full text

Abstract:

This research paper is about team Dhaksha's accomplishment in designing, developing and testing a slew of Rotary Wing Mini Unmanned Aerial Systems for entry into various international aerial robotics/unmanned aerial vehicle (UAV) competitions and civilian applications. Dhaksha, the Unmanned Aircraft System (UAS), developed by the team at Madras Institute of Technology (MIT) campus of Anna University, Chennai, Tamil Nadu, India, with its stable design presented stiff competition to other contestants during the May 2012 technology demonstration called UAVForge organized by Defense Advanced Resea

APA, Harvard, Vancouver, ISO, and other styles

11

Wang, Fei, Peidong Liu, Shiyu Zhao, Ben M. Chen, Swee King Phang, Shupeng Lai, Tao Pang, Biao Wang, Chenxiao Cai, and Tong H. Lee. "Development of an Unmanned Helicopter for Vertical Replenishment." Unmanned Systems 03, no. 01 (January 2015): 63–87. http://dx.doi.org/10.1142/s2301385015500053.

Full text

Abstract:

This paper presents an intelligent and robust guidance, navigation and control solution for a rotary-wing UAV to carry out an autonomous cargo transportation mission between two moving platforms. Different from the conventional GPS/INS-only navigation scheme, this solution also integrates sophisticated Lidar and vision systems capable of precisely locating cargo loading and unloading positions. Besides, another complementary GPS/INS system is set up on the moving platforms with communication to the unmanned helicopter so that the controlled UAV is able to follow the dynamic platforms with good

APA, Harvard, Vancouver, ISO, and other styles

12

Martawireja, Abdur Rohman Harits, and Hadi Supriyanto. "Penentuan Lintasan Pergerakan Quadcopter Berbasis GPS (Global Positioning System)." Jurnal Teknologi dan Rekayasa Manufaktur 1, no. 2 (December 23, 2019): 1–14. http://dx.doi.org/10.48182/jtrm.v1i2.7.

Full text

Abstract:

UNMANNED AERIAL VEHICLE (UAV) merupakan sebuah kendaraan udara tanpa awak yang dapat dikendalikan. Terdapat dua tipe UAV, yakni fixed wing dan rotary wing. Quadcopter menjadi salah satu tipe UAV rotary wing yang banyak digunakan dalam berbagai kebutuhan, seperti eksplorasi dan pengambilan citra. Pada penelitian ini Quadcopter berfungsi sebagai kendaraan yang harus bergerak mengikuti lintasan, dimana lintasan yang dikuti oleh Quadcopter berasal dari GPS yang dihasilkan oleh objek yang diikuti (Modul Utama). Tipe GPS yang terpasang pada Quadcopter (GPS1) maupun pada Modul Utama (GPS2) adalah GPS

APA, Harvard, Vancouver, ISO, and other styles

13

Kong, Changduk, Jongha Park, and Myoungcheol Kang. "A Study on Transient Performance Characteristics of the Canard Rotor Wing Type Unmanned Aerial Vehicle Propulsion System During Flight Mode Transition." Journal of Engineering for Gas Turbines and Power 128, no. 3 (September 28, 2005): 573–78. http://dx.doi.org/10.1115/1.2135821.

Full text

Abstract:

A propulsion system of the CRW (Canard rotor wing) type UAV (unmanned aerial vehicle) was composed of the turbojet engine, exhaust nozzles (including some tip jet nozzles and a main nozzle), and the duct system (including straight ducts, curved ducts, and master valve). The CRW-type UAV has three different flight modes, such as the rotary wing mode for takeoff and landing, the high-speed forward flight mode with the fixed wing, and the transition flight mode between the previously mentioned two flight modes. In order to evaluate transient performance characteristics of the CRW-type UAV propuls

APA, Harvard, Vancouver, ISO, and other styles

14

Ahmed, Bilal, and Hemanshu R. Pota. "Flight Control of a Rotary wing UAV including Flapping Dynamics." IFAC Proceedings Volumes 44, no. 1 (January 2011): 10373–78. http://dx.doi.org/10.3182/20110828-6-it-1002.01021.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Xie, Hui, Alan F. Lynch, and Martin Jagersand. "Dynamic IBVS of a rotary wing UAV using line features." Robotica 34, no. 9 (December 9, 2014): 2009–26. http://dx.doi.org/10.1017/s0263574714002707.

Full text

Abstract:

SUMMARYIn this paper we propose a dynamic image-based visual servoing (IBVS) control for a rotary wing unmanned aerial vehicle (UAV) which directly accounts for the vehicle's underactuated dynamic model. The motion control objective is to follow parallel lines and is motivated by power line inspection tasks where the UAV's relative position and orientation to the lines are controlled. The design is based on a virtual camera whose motion follows the onboard physical camera but which is constrained to point downwards independent of the vehicle's roll and pitch angles. A set of image features is

APA, Harvard, Vancouver, ISO, and other styles

16

Serrenho, Felipe Gonçalves, José Antonio Apolinário, António Luiz Lopes Ramos, and Rigel Procópio Fernandes. "Gunshot Airborne Surveillance with Rotary Wing UAV-Embedded Microphone Array." Sensors 19, no. 19 (October 1, 2019): 4271. http://dx.doi.org/10.3390/s19194271.

Full text

Abstract:

Unmanned aerial vehicles (UAV) are growing in popularity, and recent technological advances are fostering the development of new applications for these devices. This paper discusses the use of aerial drones as a platform for deploying a gunshot surveillance system based on an array of microphones. Notwithstanding the difficulties associated with the inherent additive noise from the rotating propellers, this application brings an important advantage: the possibility of estimating the shooter position solely based on the muzzle blast sound, with the support of a digital map of the terrain. This

APA, Harvard, Vancouver, ISO, and other styles

17

Alarcón, Francisco, Manuel García, Ivan Maza, Antidio Viguria, and Aníbal Ollero. "A Precise and GNSS-Free Landing System on Moving Platforms for Rotary-Wing UAVs." Sensors 19, no. 4 (February 20, 2019): 886. http://dx.doi.org/10.3390/s19040886.

Full text

Abstract:

This article presents a precise landing system that allows rotary-wing UAVs to approach and land safely on moving platforms, without using GNSS at any stage of the landing maneuver, and with a centimeter level accuracy and high level of robustness. This system implements a novel concept where the relative position and velocity between the aerial vehicle and the landing platform are calculated from the angles of a cable that physically connects the UAV and the landing platform. The use of a cable also incorporates a number of extra benefits, such as increasing the precision in the control of th

APA, Harvard, Vancouver, ISO, and other styles

18

D., Dr Sivaganesan. "Wireless UAV Rotary Wing Communication with Ground Nodes Using Successive Convex Approximation and Energy Saving Mode." IRO Journal on Sustainable Wireless Systems 2, no. 2 (May 26, 2020): 100–107. http://dx.doi.org/10.36548/jsws.2020.2.006.

Full text

Abstract:

Communication with several ground nodes (GNs) is enabled through wireless communications by means of a rotary-wing unmanned aerial vehicle (UAV). For every GN, the requirements of communication throughput is satisfied while minimizing the communication and propulsion related energy thereby reducing the total energy consumption of the UAV. The total completion time of the mission, the GN time allocation for communication as well as the trajectory of UAV are optimized jointly to formulate the problem of energy minimization. The UAV rotary wing model of power consumption for propulsion power in a

APA, Harvard, Vancouver, ISO, and other styles

19

Wang, Zhen, Miaowen Wen, Shuping Dang, Lisu Yu, and Yuhao Wang. "Trajectory design and resource allocation for UAV energy minimization in a rotary-wing UAV-enabled WPCN." Alexandria Engineering Journal 60, no. 1 (February 2021): 1787–96. http://dx.doi.org/10.1016/j.aej.2020.11.027.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Unal, Beytullah, Tamer Savas, and Isil Yazar. "Design of a Pesticide Spraying Quadcopter." International Journal of Aviation Science and Technology vm01, is01 (September 10, 2020): 9–13. http://dx.doi.org/10.23890/ijast.vm01is01.0102.

Full text

Abstract:

Today, coupled with technological development, UAV (Unmanned Aerial Vehicle) systems show an important improvement in civil area applications. UAV systems have active tasks with cost-effective solutions in several areas like defense, logistics, engineering and agriculture. Especially in agricultural applications, UAV system usage contributes to improvement of the critical parameters of this sector as efficiency and sustainability. Thus, in agricultural areas, improvement and usage of unmanned systems are of importance. In this study, a remote-control rotary wing UAV system that has the ability

APA, Harvard, Vancouver, ISO, and other styles

21

Mat, Amir Rasydan, Liew Mun How, Omar Kassim Ariff, M. Amzari M. Zhahir, and Ramly Mohd Ajir. "Autonomous Aerial Hard Docking of Fixed and Rotary Wing UAVs: Task Assessment and Solution Architecture." Applied Mechanics and Materials 629 (October 2014): 176–81. http://dx.doi.org/10.4028/www.scientific.net/amm.629.176.

Full text

Abstract:

This paper covers exploratory efforts that attempt to address limitations and restrictions in the operating envelope of UAVs, and proposes a conceptual solution to the problem. UAVs, like aircraft, can be categorized into two main types: fixed wing and rotary wing. A fixed wing UAV flies using wings that generate lift caused by the vehicle’s forward airspeed and the shape of the wings. The greatest advantage of fixed wing UAVs obtained from utilizing aerodynamic lift is its long range and high endurance performance. However, this primary advantage comes from the fact that most fixed wing UAVs

APA, Harvard, Vancouver, ISO, and other styles

22

Park, Jongho, and Jaehyun Yoo. "Indoor Mapping Guidance Algorithm of Rotary-Wing UAV Including Dead-End Situations." Sensors 19, no. 22 (November 7, 2019): 4854. http://dx.doi.org/10.3390/s19224854.

Full text

Abstract:

A mapping guidance algorithm of a quadrotor for unknown indoor environments is proposed. A sensor with limited sensing range is assumed to be mounted on the quadrotor to obtain object data points. With obtained data, the quadrotor computes velocity vector and yaw commands to move around the object while maintaining a safe distance. The magnitude of the velocity vector is also controlled to prevent a collision. The distance transform method is applied to establish dead-end situation logic as well as exploration completion logic. When a dead-end situation occurs, the guidance algorithm of the qu

APA, Harvard, Vancouver, ISO, and other styles

23

Ye, Han-Ting, Xin Kang, Jingon Joung, and Ying-Chang Liang. "Optimization for Full-Duplex Rotary-Wing UAV-Enabled Wireless-Powered IoT Networks." IEEE Transactions on Wireless Communications 19, no. 7 (July 2020): 5057–72. http://dx.doi.org/10.1109/twc.2020.2989302.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Wu, Fahui, Dingcheng Yang, Lin Xiao, and Laurie Cuthbert. "Energy Consumption and Completion Time Tradeoff in Rotary-Wing UAV Enabled WPCN." IEEE Access 7 (2019): 79617–35. http://dx.doi.org/10.1109/access.2019.2922651.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Park, Joon-Kyu, and Min-Gyu Kim. "Applicability Verification of Rotary Wing UAV for Rapid Construction of Geospatial Information." Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology 6, no. 4 (April 30, 2016): 73–80. http://dx.doi.org/10.14257/ajmahs.2016.04.45.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Saggiani, G. M., and B. Teodorani. "Rotary wing UAV potential applications: an analytical study through a matrix method." Aircraft Engineering and Aerospace Technology 76, no. 1 (February 2004): 6–14. http://dx.doi.org/10.1108/00022660410514955.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Zhan, Cheng, and Hong Lai. "Energy Minimization in Internet-of-Things System Based on Rotary-Wing UAV." IEEE Wireless Communications Letters 8, no. 5 (October 2019): 1341–44. http://dx.doi.org/10.1109/lwc.2019.2916549.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Ucgun, Hakan, Ugur Yuzgec, and Cuneyt Bayilmis. "A review on applications of rotary-wing unmanned aerial vehicle charging stations." International Journal of Advanced Robotic Systems 18, no. 3 (May 1, 2021): 172988142110158. http://dx.doi.org/10.1177/17298814211015863.

Full text

Abstract:

Today’s technology allows people to remotely control and monitor many systems. In these technological systems, robots or unmanned vehicles are generally used, which are controlled remotely without human interaction. Unmanned aerial vehicle (UAV), which does not have a pilot on it, is one of the unmanned vehicles capable of flying either remotely or automatically. UAVs are among the systems that are used in many fields for military, civil, and academic purposes and are constantly developing in parallel with the advancement of technology. One of the biggest problems of UAVs that are effectively

APA, Harvard, Vancouver, ISO, and other styles

29

Kang, Keeryun, and J. V. R. Prasad. "Development and Flight Test Evaluations of an Autonomous Obstacle Avoidance System for a Rotary-Wing UAV." Unmanned Systems 01, no. 01 (June 20, 2013): 3–19. http://dx.doi.org/10.1142/s2301385013500015.

Full text

Abstract:

This paper presents the development and flight-testing of an obstacle avoidance system that can provide a rotary-wing unmanned aerial vehicle (UAV) the autonomous obstacle field navigation capability in uncertain environment. The system is composed of a sensor, an obstacle map generation algorithm from sensor measurements, an online path planning algorithm, and an adaptive vehicle controller. The novel approach of path planning presented in the paper is the integration of a newly developed receding horizon (RH) trajectory optimization scheme with a global path searching algorithm. The develope

APA, Harvard, Vancouver, ISO, and other styles

30

Hoang Dinh, Thinh, and Hieu Le Thi Hong. "Detection and localization of helipad in autonomous UAV landing: a coupled visual-inertial approach with artificial intelligence." Transport and Communications Science Journal 71, no. 7 (September 30, 2020): 828–39. http://dx.doi.org/10.47869/tcsj.71.7.8.

Full text

Abstract:

Autonomous landing of rotary wing type unmanned aerial vehicles is a challenging problem and key to autonomous aerial fleet operation. We propose a method for localizing the UAV around the helipad, that is to estimate the relative position of the helipad with respect to the UAV. This data is highly desirable to design controllers that have robust and consistent control characteristics and can find applications in search – rescue operations. AI-based neural network is set up for helipad detection, followed by optimization by the localization algorithm. The performance of this approach is compar

APA, Harvard, Vancouver, ISO, and other styles

31

Hoang Dinh, Thinh, and Hieu Le Thi Hong. "Detection and localization of helipad in autonomous UAV landing: a coupled visual-inertial approach with artificial intelligence." Transport and Communications Science Journal 71, no. 7 (September 30, 2020): 828–39. http://dx.doi.org/10.25073/tcsj.71.7.8.

Full text

Abstract:

Autonomous landing of rotary wing type unmanned aerial vehicles is a challenging problem and key to autonomous aerial fleet operation. We propose a method for localizing the UAV around the helipad, that is to estimate the relative position of the helipad with respect to the UAV. This data is highly desirable to design controllers that have robust and consistent control characteristics and can find applications in search – rescue operations. AI-based neural network is set up for helipad detection, followed by optimization by the localization algorithm. The performance of this approach is compar

APA, Harvard, Vancouver, ISO, and other styles

32

Kimball, Sytske K., Carlos J. Montalvo, and Madhuri S. Mulekar. "Assessing iMET-XQ Performance and Optimal Placement on a Small Off-the-Shelf, Rotary-Wing UAV, as a Function of Atmospheric Conditions." Atmosphere 11, no. 6 (June 20, 2020): 660. http://dx.doi.org/10.3390/atmos11060660.

Full text

Abstract:

The accuracy and precision of iMET-XQ (InterMET Inc., Grand Rapids, MI, USA) temperature measurements in ten different locations on an off-the shelf rotary-wing unmanned aerial vehicle (rw-UAV) were assessed, as a function of atmospheric conditions. The rw-UAV hovered near an instrumented South Alabama Mesonet tower. The mean ± standard deviation of all the temperature differences between the tower and the ten iMET-XQ sensors for all experiments are −0.23 °C ±0.24 °C. Both the UAV and the environment influence the accuracy and precision of the iMET-XQ temperature measurements. Heat generated b

APA, Harvard, Vancouver, ISO, and other styles

33

Ahmed, Bilal, and Hemanshu R. Pota. "Dynamic Compensation for Control of a Rotary wing UAV Using Positive Position Feedback." Journal of Intelligent & Robotic Systems 61, no. 1-4 (October 27, 2010): 43–56. http://dx.doi.org/10.1007/s10846-010-9487-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Prasetyo, Mustafa Dwi, and Mohamad Yamin. "PENGUJIAN WAHANA UNMANNED AERIAL VEHICLE (UAV) AMPHI-FLY EVO 1.0 UNTUK MISI PENCARIAN DAN PENYELAMATAN." Jurnal Ilmiah Teknologi dan Rekayasa 23, no. 3 (2018): 220–32. http://dx.doi.org/10.35760/tr.2018.v23i3.2471.

Full text

Abstract:

UAV (Unmanned Aerial Vehicle) merupakan sebuah wahana udara jenis fixed-wing, rotary-wing, ataupun pesawat yang mampu mengudara pada jalur yang ditentukan tanpa kendali langsung oleh pilot. UAV dapat digunakan untuk membantu kinerja dari BASARNAS, BNPPD dalam proses pencarian dan penyelamatan korban bencana. Untuk menunjang kegiatan tersebut, UAV harus melewati pengujian terlabih dahulu. Pada penelitian ini dilakukan pengujian terhadap wahana UAV AMPHI-FLY Evo 1.0 yang meliputi pengujian terhadap frame, propeller udara, kamera, transmitter, GPS, baterai dan sensor accelerometer. Pengujian dila

APA, Harvard, Vancouver, ISO, and other styles

35

Kim, Min-Seong, and Byung Hyuk Kwon. "Estimation of Sensible Heat Flux and Atmospheric Boundary Layer Height Using an Unmanned Aerial Vehicle." Atmosphere 10, no. 7 (June 30, 2019): 363. http://dx.doi.org/10.3390/atmos10070363.

Full text

Abstract:

In this work, sensible heat flux estimated using a bulk transfer method was validated with a three-dimensional ultrasonic anemometer or surface layer scintillometer at various sites. Results indicate that it remains challenging to obtain temperature and wind speed at an appropriate reference height. To overcome this, alternative observations using an unmanned aerial vehicle (UAV) were considered. UAV-based wind speed and sensible heat flux were indirectly estimated and atmospheric boundary layer (ABL) height was then derived using the sensible heat flux data. UAV-observed air temperature was m

APA, Harvard, Vancouver, ISO, and other styles

36

Kwak, Kyung-Hwan, Seung-Hyeop Lee, A.-Young Kim, Kwon-Chan Park, Sang-Eun Lee, Beom-Soon Han, Joohyun Lee, and Young-San Park. "Daytime Evolution of Lower Atmospheric Boundary Layer Structure: Comparative Observations between a 307-m Meteorological Tower and a Rotary-Wing UAV." Atmosphere 11, no. 11 (October 22, 2020): 1142. http://dx.doi.org/10.3390/atmos11111142.

Full text

Abstract:

A 307-m tall meteorological tower was used to evaluate meteorological observation data obtained using a rotary-wing unmanned aerial vehicle (UAV). A comparative study between the tower and UAV observations was conducted during the daytime (06:00 to 19:00 local time (LT)) in the summer of 2017 (16–18th August). Hourly vertical profiles of air temperature, relative humidity, black carbon (BC), and ozone (O3) concentrations were obtained for up to 300 m height. Statistical metrics for evaluating the accuracy of UAV observations against the tower observation showed positive (potential temperature)

APA, Harvard, Vancouver, ISO, and other styles

37

Hidayat, Husnul, and Bangun Muljo Sukojo. "Analysis of Horizontal Accuracy for Large Scale Rural Mapping Using Rotary Wing UAV Image." IOP Conference Series: Earth and Environmental Science 98 (December 2017): 012052. http://dx.doi.org/10.1088/1755-1315/98/1/012052.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Samal, Mahendra Kumar, Sreenatha Anavatti, Tapabrata Ray, and Matthew Garratt. "A computationally efficient approach for NN based system identification of a rotary wing UAV." International Journal of Control, Automation and Systems 8, no. 4 (August 2010): 727–34. http://dx.doi.org/10.1007/s12555-010-0403-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Song, Bonggeun, and Kyunghun Park. "Detection of Aquatic Plants Using Multispectral UAV Imagery and Vegetation Index." Remote Sensing 12, no. 3 (January 25, 2020): 387. http://dx.doi.org/10.3390/rs12030387.

Full text

Abstract:

In this study, aquatic plants in a small reservoir were detected using multispectral UAV (Unmanned Aerial Vehicle) imagery and various vegetation indices. A Firefly UAV, which has both fixed-wing and rotary-wing flight modes, was flown over the study site four times. A RedEdge camera was mounted on the UAV to acquire multispectral images. These images were used to analyze the NDVI (Normalized Difference Vegetation Index), ENDVI (Enhance Normalized Difference Vegetation Index), NDREI (Normalized Difference RedEdge Index), NGRDI (Normalized Green-Red Difference Index), and GNDVI (Green Normalize

APA, Harvard, Vancouver, ISO, and other styles

40

Xu, Yu, Wenda Sun, and Ping Li. "A Miniature Integrated Navigation System for Rotary-Wing Unmanned Aerial Vehicles." International Journal of Aerospace Engineering 2014 (2014): 1–13. http://dx.doi.org/10.1155/2014/748940.

Full text

Abstract:

This paper presents the development of a low cost miniature navigation system for autonomous flying rotary-wing unmanned aerial vehicles (UAVs). The system incorporates measurements from a low cost single point GPS and a triaxial solid state inertial/magnetic sensor unit. The navigation algorithm is composed of three modules running on a microcontroller: the sensor calibration module, the attitude estimator, and the velocity and position estimator. The sensor calibration module relies on a recursive least square based ellipsoid hypothesis calibration algorithm to estimate biases and scale fact

APA, Harvard, Vancouver, ISO, and other styles

41

Teske, Milton E., Daniel A. Wachspress, and Harold W. Thistle. "Prediction of Aerial Spray Release from UAVs." Transactions of the ASABE 61, no. 3 (2018): 909–18. http://dx.doi.org/10.13031/trans.12701.

Full text

Abstract:

Abstract. This article summarizes the ability of CHARM+AGDISP to predict the drift and deposition of sprays released from rotary wing unmanned aerial vehicles (UAVs). This predictive capability results from merging algorithms for spray transport, as found in AGDISP (AGricultural DISPersal), with CHARM (Comprehensive Hierarchical Aeromechanics Rotorcraft Model). The resulting software tracks the release of spray droplets from nozzles on the UAV to deposition on the ground. To date, both AGDISP and CHARM, a code that provides a complete representation of the time-varying, unsteady flow field sur

APA, Harvard, Vancouver, ISO, and other styles

42

Wang, Zhen, Wenjun Xu, Dingcheng Yang, and Jiaru Lin. "Joint Trajectory Optimization and User Scheduling for Rotary-Wing UAV-Enabled Wireless Powered Communication Networks." IEEE Access 7 (2019): 181369–80. http://dx.doi.org/10.1109/access.2019.2959637.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Qi, Juntong, Dalei Song, Hong Shang, Nianfa Wang, Chunsheng Hua, Chong Wu, Xin Qi, and Jianda Han. "Search and Rescue Rotary-Wing UAV and Its Application to the Lushan Ms 7.0 Earthquake." Journal of Field Robotics 33, no. 3 (July 6, 2015): 290–321. http://dx.doi.org/10.1002/rob.21615.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Wanngoen, Saetunand, Saengphet, and Tantrairatn. "Angle of Attack Sensor for Small Fixed-Wing Unmanned Aerial Vehicles." Proceedings 39, no. 1 (January 7, 2020): 19. http://dx.doi.org/10.3390/proceedings2019039019.

Full text

Abstract:

The angle of attack (AOA) is an important parameter for estimating aerodynamic parameter the performance and stability of aircraft. Currently, AOA sensors are used in general aircraft. However, there is no a reasonable-price AOA sensor that is compatible to a small fixed-wing unmanned aerial vehicles (UAVs). This research aims to designs and constructs angle of attract (AOA) sensor for small fixed-wing unmanned aircraft. Mechanism Design, which is similar to aerodynamic wheatear vane, can operate in airspeed 10–30 m/s. The direction of airfoil aligns with the air flow direction. When the AOA o

APA, Harvard, Vancouver, ISO, and other styles

45

Rudys, Saulius, Andrius Laučys, Dainius Udris, Raimondas Pomarnacki, and Domantas Bručas. "Functionality Investigation of the UAV Arranged FMCW Solid-State Marine Radar." Journal of Marine Science and Engineering 9, no. 8 (August 18, 2021): 887. http://dx.doi.org/10.3390/jmse9080887.

Full text

Abstract:

Some models of marine radars are light-weight enough and thus are attractive for potential applications when arranged on UAVs. Elevating a marine radar to high altitudes provides a much wider field of view, however, this could lead to a higher radio interference level. The practical estimation of the radio interferences affecting the solid-state FMCW marine radar at altitudes up to 120 m was the main objective of this contribution. A rotary-wing octocopter UAV was developed and built for the experiments. Two different kinds of interferences were observed at higher altitudes. Ray-like interfere

APA, Harvard, Vancouver, ISO, and other styles

46

von Eichel-Streiber, Johannes, Christoph Weber, Jesús Rodrigo-Comino, and Jens Altenburg. "Controller for a Low-Altitude Fixed-Wing UAV on an Embedded System to Assess Specific Environmental Conditions." International Journal of Aerospace Engineering 2020 (June 16, 2020): 1–10. http://dx.doi.org/10.1155/2020/1360702.

Full text

Abstract:

The use of an appropriate sensor on an unmanned aerial vehicle (UAV) is vital to assess specific environmental conditions successfully. In addition, technicians and scientists also appreciate a platform to carry the sensors with some advantages such as the low costs or easy pilot management. However, extra requirements like a low-altitude flight are necessary for special applications such as plant density or rice yield. A rotary UAV matches this requirement, but the flight endurance is too short for large areas. Therefore, in this article, a fixed-wing UAV is used, which is more appropriate be

APA, Harvard, Vancouver, ISO, and other styles

47

Pádua, Luís, Pedro Marques, Jonáš Hruška, Telmo Adão, Emanuel Peres, Raul Morais, and Joaquim Sousa. "Multi-Temporal Vineyard Monitoring through UAV-Based RGB Imagery." Remote Sensing 10, no. 12 (November 29, 2018): 1907. http://dx.doi.org/10.3390/rs10121907.

Full text

Abstract:

This study aimed to characterize vineyard vegetation thorough multi-temporal monitoring using a commercial low-cost rotary-wing unmanned aerial vehicle (UAV) equipped with a consumer-grade red/green/blue (RGB) sensor. Ground-truth data and UAV-based imagery were acquired on nine distinct dates, covering the most significant vegetative growing cycle until harvesting season, over two selected vineyard plots. The acquired UAV-based imagery underwent photogrammetric processing resulting, per flight, in an orthophoto mosaic, used for vegetation estimation. Digital elevation models were used to comp

APA, Harvard, Vancouver, ISO, and other styles

48

Dalwadi, Nihal, Dipankar Deb, Mangal Kothari, and Stepan Ozana. "Disturbance Observer-Based Backstepping Control of Tail-Sitter UAVs." Actuators 10, no. 6 (June 3, 2021): 119. http://dx.doi.org/10.3390/act10060119.

Full text

Abstract:

The application scope of unmanned aerial vehicles (UAVs) is increasing along with commensurate advancements in performance. The hybrid quadrotor vertical takeoff and landing (VTOL) UAV has the benefits of both rotary-wing aircraft and fixed-wing aircraft. However, the vehicle requires a robust controller for takeoff, landing, transition, and hovering modes because the aerodynamic parameters differ in those modes. We consider a nonlinear observer-based backstepping controller in the control design and provide stability analysis for handling parameter variations and external disturbances. We car

APA, Harvard, Vancouver, ISO, and other styles

49

Jung, Yeondeuk, and Hyungsik Choi. "Actuator Mixer Design in Rotary-Wing Mode Based on Convex Optimization Technique for Electric VTOL UAV." Journal of the Korean Society for Aeronautical & Space Sciences 48, no. 9 (September 30, 2020): 691–701. http://dx.doi.org/10.5139/jksas.2020.48.9.691.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

KAWAKAMI, Kohei, Kenji NISHIGAKI, Shinichiro NISHIDA, Kazunori SAKURAMA, and Masaharu NISHIMURA. "719 Attitude stabilization on yaw axis of a rotary wing UAV with stators in the downwash." Proceedings of Conference of Chugoku-Shikoku Branch 2014.52 (2014): _719–1_—_719–3_. http://dx.doi.org/10.1299/jsmecs.2014.52._719-1_.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!