Results 61 to 70 of about 13,806 (183)

Altitude Stabilization of VTOL System With Nonlinear Control Strategy

open access: yesIEEE Access
The Vertical Take-Off and Landing (VTOL) system is a highly nonlinear system operating in severe ambient conditions, reflects the attention of the control engineering community.
Muhammad Ilyas   +4 more
doaj   +1 more source

Attitude controls for VTOL aircraft [PDF]

open access: yes, 1971
Systems consist of single duct system with two sets of reaction control nozzles, one linked mechanically to pilot's controls, and other set driven by electric servomotors commanded by preselected combinations of electrical ...
Pauli, F. A.
core   +1 more source

Using Deep Learning to Automate Orangutan Nest Detections on Aerial Images Collected With Drones

open access: yesAmerican Journal of Primatology, Volume 87, Issue 12, December 2025.
Graphical abstract of the deep learning study to detect orangutan nests on images acquired by drones. ABSTRACT Traditional orangutan distribution and density monitoring requires costly line transect methods on the ground to detect their nests. Recently researchers have started to use unoccupied aerial vehicles, hereafter referred to as drones, to ...
Serge Wich   +8 more
wiley   +1 more source

Anti-Disturbance for ST-VTOL UAV via Sliding Mode Control with Enhanced Observer

open access: yesDrones
As a classical disturbance observation method, the extended state observer (ESO) is commonly used in controllers for disturbance estimation and feedback control.
Jiahui Zhang   +6 more
doaj   +1 more source

Utilising Drones in Agriculture: A Review on Remote Sensors, Image Processing and Their Application

open access: yesModern Agriculture, Volume 3, Issue 2, December 2025.
The utilisation of drones in agriculture involves the integration of advanced sensing technologies, data analytics and targeted applications. Drones equipped with sensors such as RGB, multispectral and hyperspectral capture diverse spatial and spectral data.
Chetan Yumnam   +10 more
wiley   +1 more source

Design and Control of Range-Extender-Based Compound-Wing Unmanned VTOL

open access: yesDrones
This paper proposes a power architecture for a Compound-Wing Unmanned VTOL to supply power during the hovering state. To enhance the hovering efficiency of the UAV while considering the cruising efficiency, the layout structure of a traditional Compound ...
Xu Peng   +6 more
doaj   +1 more source

Design and performance analyses of a fixed wing battery VTOL UAV

open access: yesEngineering Science and Technology, an International Journal, 2020
The objective of this paper is to explain the design steps and performance analyses including energy consumption of a fixed-wing (FW) vertical take-off and landing (VTOL) unmanned air vehicle (UAV).
Özgür Dündar   +2 more
doaj   +1 more source

Aircraft control system [PDF]

open access: yes, 1973
An aircraft control system is described which is particularly suited to rotary wing aircraft. Longitudinal acceleration and course rate commands are derived from a manual control stick to control translational velocity of the aircraft along a flight path.
Koziol, J. S., Jr.   +3 more
core   +1 more source

Study of dynamics of X-14B VTOL aircraft [PDF]

open access: yes
Research was initiated to investigate certain facets of modern control theory and their integration with a digital computer to provide a tractable flight control system for a VTOL aircraft.
Loscutoff, W. V.   +3 more
core   +1 more source

Spiral Approach for Non‐Software Product and Engineering System Development

open access: yesSystems Engineering, Volume 28, Issue 6, Page 779-802, November 2025.
ABSTRACT This article explored the spiral development process, sometimes called “evolutionary acquisition” in military sectors, and reviewed major non‐software applications in the engineering literature. The spiral development process was originally developed for the design of software while minimizing and managing risk, but the principles can be ...
Isha Amod Gujarathi   +2 more
wiley   +1 more source

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