Results 21 to 30 of about 138,234 (252)

Cruise Missile Integrated Air Defense System Penetration: Modeling the S-400 System

open access: yesInternational Journal of Aviation, Aeronautics, and Aerospace, 2017
This research determines improved flight-path routes that make maximum utilization of terrain-masking opportunities, and defending radar and missile system equipment performance and launch timing constraints, in order to avoid radar detection and ...
Michael Pelosi, Amie K Honeycutt
doaj   +1 more source

A Spatiotemporal Sequence of Sensitization to Slits and Semaphorins Orchestrates Commissural Axon Navigation

open access: yesCell Reports, 2019
Summary: Accurate perception of guidance cues is crucial for cell and axon migration. During initial navigation in the spinal cord, commissural axons are kept insensitive to midline repellents.
Aurora Pignata   +9 more
doaj   +1 more source

Data-Driven Guidance and Control for Asteroid Landing Based on Real-Time Dynamic Mode Decomposition

open access: yesIEEE Access, 2023
Navigation and control near asteroids are challenging due to high levels of uncertainty, necessitating a high degree of autonomy and safety. To address this challenge, we propose a novel method for leveraging data-driven approaches, which have garnered ...
Taiga Kajikawa   +3 more
doaj   +1 more source

Experimental results of a terrain relative navigation algorithm using a simulated lunar scenario [PDF]

open access: yes, 2015
This paper deals with the problem of the navigation of a lunar lander based on the Terrain Relative Navigation approach. An algorithm is developed and tested on a scaled simulated lunar scenario, over which a tri-axial moving frame has been built to ...
Ansalone, Luigi   +2 more
core   +1 more source

Differences in protein mobility between pioneer versus follower growth cones [PDF]

open access: yes, 2007
Navigating growth cones need to integrate, process and respond to guidance signals, requiring dynamic information transfer within and between different compartments.
Bak   +25 more
core   +3 more sources

Digitalization of Educational and Methodological Support for the Training of Aviation Dispatchers

open access: yesInternational Journal of Aviation, Aeronautics, and Aerospace, 2021
The tasks of improving the educational process of training civil aviation dispatchers on the basis of the development and implementation of digital teaching aids are considered.
Zair Ziyaevich Shamsiev
doaj   +1 more source

Improving Airplane Touchdown Control by Utilizing the Adverse Elevator Effect

open access: yesInternational Journal of Aviation, Aeronautics, and Aerospace, 2014
The main objective of this original research article is to understand the short-term dynamic behavior of the transport-category airplane during landing flare elevator control application.
Nihad E Daidzic
doaj   +1 more source

Non-linear autopilot design using the philosophy of variable transient response [PDF]

open access: yes, 2009
The novel non-linear controller design methodology of Variable Transient Response (VTR) is presented in this research. The performance of VTR is compared to that of successful non-linear controller designs (such as Robust Inverse Dynamics Estimation and ...
Brindley, Joseph   +2 more
core   +1 more source

Dynamic modelling of parafoil system based on aerodynamic coefficients identification

open access: yesAutomatika, 2023
This study focuses on the identification of aerodynamic coefficients through airdrop data based on a known six-degree-of-freedom (6-DOF) model. Since the precise modelling of the parafoil system is a prerequisite for design of guidance, navigation and ...
Ligan Zhao   +3 more
doaj   +1 more source

Motion Planning for Optimal Information Gathering in Opportunistic Navigation Systems [PDF]

open access: yes, 2013
Motion planning for optimal information gathering in an opportunistic navigation (OpNav) environment is considered. An OpNav environment can be thought of as a radio frequency signal landscape within which a receiver locates itself in space and time by
Humphreys, Todd E., Kassas, Zaher M.
core   +1 more source

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