624 Hits in 5.2 sec

Formation Flight Optimization Using Extremum Seeking Feedback

Paolo Binetti, Kartik B. Ariyur, Miroslav Krstic, Franco Bernelli
2003 Journal of Guidance Control and Dynamics  
The procedure involves the design of a new wake robust formation hold autopilot and transformation of the closed-loop aircraft dynamics to a form in which a newly available rigorous design procedure for  ...  Optimal formation ight is attained by online minimization of an easily measurable objective, the pitch angle of the wingman.  ...  We rst apply the design algorithm to the design of the vertical separation optimization loop that sets the reference z ref for the longitudinal aircraft dynamics with autopilot.  ... 
doi:10.2514/2.5024 fatcat:6kiw5yf4ybfgnjxx3b2lxegjhq

Smart aerosonde UAV longitudinal flight control system based on genetic algorithm

Ahmed Elbatal, Ahmed Medhat Youssef, Mohamed M. Elkhatib
2021 Bulletin of Electrical Engineering and Informatics  
Synthesis of a flight control system for such an aircraft that achieves stable and acceptable performance across a specified flying envelope in the presence of uncertainties represents an attractive and  ...  This study uses the genetic self-tuning PID algorithm to develop an intelligent flight control system for the aerosonde UAV model.  ...  Trial and error: depend on adding and subtracting algorithm, which is an easy way for implementing a solution, however, it takes much processing time with the unease tuning process. b.  ... 
doi:10.11591/eei.v10i5.2342 fatcat:oim5ixgdjzgwhhnehbjw5i4gti

Simplified brain storm optimization approach to control parameter optimization in F/A-18 automatic carrier landing system

Junnan Li, Haibin Duan
2015 Aerospace Science and Technology  
The control parameters in the autopilot and auto-throttle control module are optimized by minimizing a set of objective functions defined in the time domain.  ...  The design of automatic carrier landing system is a crucial technique for carrier-based aircraft, since it facilitates landing of aircraft on carriers in various severe weather conditions, such as low  ...  The control parameters in the H-dot command autopilot and APCS are optimized by minimizing a set of objective functions defined in the time domain.  ... 
doi:10.1016/j.ast.2015.01.017 fatcat:makzbrffxrfuxfuee3rzjxg5te

On the Tradeoff Between Electrical Power Consumption and Flight Performance in Fixed-Wing UAV Autopilots

Eduard Bertran, Alex Sanchez-Cerda
2016 IEEE Transactions on Vehicular Technology  
This paper sets out a study of the autopilot design for fixed wing UAVs taking into account the aircraft stability, and also the power consumption as a function of the selected control strategy.  ...  A beneficial consequence of this sample time enlargement is that the clock rate of the UAV autopilots may be proportionally reduced.  ...  Máirtín O'Droma (University of Limerick) for his help and constructive criticism in the review and edition of this paper.  ... 
doi:10.1109/tvt.2016.2601927 fatcat:ohcbdd5fjjfphnsgf4dzcokcjm

Design of a total energy control autopilot using constrained parameter optimization

1991 Journal of Guidance Control and Dynamics  
LY pitch attiude and pitch rate for stabilization of the aircraft longitudinal rigid-body modes.  ...  In particular, the design algorithm developed in Ref. 6 provides a convenient framework for designing optimal low-order controllers.  ... 
doi:10.2514/3.20733 fatcat:vynpwf5onngm7fxywcpcnevpwi

Subject Index

1983 Journal of Guidance Control and Dynamics  
New Strapdown Attitude Algorithm G33-050 Covariance Analysis of a Carrier Device Processing Algorithm for Stellar Sensors G83-043 Time-Optimized North-South Stationkeeping G83-039 An Onboard Navigator  ...  Observers as Noise Filters in an Automatic Aircraft Landing System G83-019 Control Characteristics of a Buoyant Quad- Rotor Research Aircraft G83-015 A Unifying Framework for Longitudinal Flying Qualities  ... 
doi:10.2514/3.8535 fatcat:emfshe4yorcjtbbdflip4cugri

A Tube-based Robust MPC for a Fixed-wing UAV: an Application for Precision Farming [article]

Martina Mammarella, Elisa Capello
2018 arXiv   pre-print
In this research, a guidance algorithm and a robust control system are combined to guarantee the robustness of the system to additive noise (i.e. wind disturbance) and uncertainties (i.e. model parameter  ...  A small fixed-wing UAV with an autonomy of about 1 hour is proposed as case study, to reduce the cost of monitoring and increasing the stability performance of the system.  ...  Gianluca Ristorto, Senior Engineer at MAVTech srl, for the insightful discussion on precision farming scenario and on the hardware in the loop tests.  ... 
arXiv:1805.04295v1 fatcat:nkwhyqcqyfezjchkxrpgevqt7i

Designing An Optimal Pid Controller For Control The Plans Height, Based On Control Of Autopilot By Using Evolutionary Algorithms

Mohammad Fiuzy, Javad Haddadnia, Seyed Kamaleddin Mousavi Mashhadi
2013 Journal of Mathematics and Computer Science  
Mentioned factors, caused damage in control of sensitive military and research aircraft. So researchers had to find a solution for this problem.  ...  on height of an Unmanned Aircraft Vehicle (UAV).  ...  According to this Figure, there is a good response time for the linear model.  ... 
doi:10.22436/jmcs.06.04.02 fatcat:pmuj253cnjcdjiqktkc6o343o4

Design, modeling and tuning of modified PID controller for autopilot in MAVs

Xu-Hui Chen, Ejaz Ul Haq, Jiawei Lin
2016 2016 17th IEEE/ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing (SNPD)  
The use of Unmanned Aircraft Vehicle or (UAV) in sensitive and important Operation is required and there is a need for autopilot that can tune the MAV in different environment conditions.  ...  The developed model is suitable for PID controller in autopilot.  ...  We also acknowledge R&D Centre, MSEC, Bangalore for the support and facility provided.  ... 
doi:10.1109/snpd.2016.7515943 dblp:conf/snpd/ChenHL16 fatcat:hg6js6mnhrc5pebxwywmis5ofa

Autonomous Maneuver Tracking for Self-Piloted Vehicles

David P. Boyle, Gregory E. Chamitoff
1999 Journal of Guidance Control and Dynamics  
In general, the performance of both lateral and longitudinal controllers for the nominal UAV model are characterized by a short-response time, with little overshoot, and a fast-settling time (1.5 s for  ...  D., Looze, D., and Ostroff, A., “Investi- gation of an Automatic Trim Algorithm for Restructurable Aircraft Control,” Proceedings of the IEEE 1986 National Aerospace and Electronics Confer- ence, NAECON  ... 
doi:10.2514/2.4371 fatcat:3nvzf3aacvg6dp52yahvein6pi

Hardware-in-the-loop Testbed for Autopilot Development using Flight Simulation and Parallel Kinematics

Stephan Schulz, Hagen Hasberg, Rene Büscher
2020 Zenodo  
The testbed integrates the real-time stimulation of motion sensors by a Stewart platform using the attitude of the simulated aircraft from a real-time flight simulation.  ...  This paper presents a testbed for Hardware-in-the-loop stimulation of flight controllers and their sensors in a real-time simulation environment.  ...  ACKNOWLEDGEMENTS The authors would like to acknowledge the financial support of the German Federal Ministry of Economics and Energy (BMWi) for this project under the ZIM program.  ... 
doi:10.5281/zenodo.3757918 fatcat:cta67prcsrckxonx2qaot6dlhm

Control of Multi-Agent Collaborative Fixed-Wing UASs in Unstructured Environment

A Ram Kim, Shawn Keshmiri, Aaron Blevins, Daksh Shukla, Weizheng Huang
2019 Journal of Intelligent and Robotic Systems  
Lateral acceleration is used for lateral guidance of aircraft and the aircraft pitch attitude error is used for longitudinal guidance of multi-agent unmanned aerial systems.  ...  An optimal control based path planning using virtual points was developed and constrained with aircraft dynamical limitations.  ...  In addition, the authors would like to thank our UAS pilot Matt Tener and KUAE undergraduate student Grant Godfrey for all of their support during flight testing operations.  ... 
doi:10.1007/s10846-019-01057-3 fatcat:4hqyjzxskngi3hnrdaedytuibe

Hardware Implementation of Aircraft Landing Controller by Evolutionary Computation and DSP

Jih-Gau Juang, Hou-Kai Chiou
2008 IFAC Proceedings Volumes  
This paper presents a hybrid control scheme for the aircraft automatic landing system. PID control law is adopted in the controller design.  ...  Control gains are selected by real-valued genetic algorithms. Different crossover methods are utilized to improve the performance of conventional automatic landing system.  ...  This paper presents an application of a DSP chip for designing a PID-GA controller for aircraft landing system.  ... 
doi:10.3182/20080706-5-kr-1001.00029 fatcat:zv27255myfb2tpc4alce26febi

Aircraft Landing Control Based on CMAC and GA Techniques

Wen-Pin Lin, Jih-Gau Juang
2008 IFAC Proceedings Volumes  
This paper presents an intelligent control scheme that uses a cerebellar model articulation controller (CMAC) and genetic algorithms (GA) in aircraft automatic landing control and to make automatic landing  ...  The proposed intelligent controller can act as an experienced pilot and guide the aircraft to a safe landing in severe turbulence environment.  ...  Therefore, in this paper we adopted a real-value GA to search the control parameters of the autopilot.  ... 
doi:10.3182/20080706-5-kr-1001.01450 fatcat:zumk2tgqvbgwzkyhxz6pu7qhn4

Subject Index 1990

1990 Journal of Guidance Control and Dynamics  
G9-163 Control of an Aircraft in Downbursts G90-118 Optimal Paths Through Downbursts G90-117 Aircraft Stability and Control Flight Robust Control Design with Real-Parameter Uncertainty and Unmodeled Dynamics  ...  Optimization G90-168 Qualitative Study of a Pianar Pursuit Evasion Game in the Atmosphere G90-160 Inertial Energy Distribution Error Control for Optimal Wind-Shear Penetration G90-136 Efficient Algorithm  ... 
doi:10.2514/3.56530 fatcat:ilb2hvh3qffodp4wp35zhcnfly
« Previous Showing results 1 — 15 out of 624 results