Journal ArticleDOI
System identification modeling of a small-scale unmanned rotorcraft for flight control design
About:
This article is published in Journal of The American Helicopter Society.The article was published on 2002-01-01. It has received 236 citations till now. The article focuses on the topics: Scale (ratio).read more
Citations
More filters
Journal ArticleDOI
Survey of advances in guidance, navigation, and control of unmanned rotorcraft systems
TL;DR: The main objective of this paper is to present a comprehensive survey of RUAS research that captures all seminal works and milestones in each GNC area, with a particular focus on practical methods and technologies that have been demonstrated in flight tests.
Journal ArticleDOI
Tracking control of small-scale helicopters using explicit nonlinear MPC augmented with disturbance observers
TL;DR: In this article, a nonlinear model predictive controller (MPC) and nonlinear disturbance observer is designed to estimate the influence of the external force/torque introduced by wind turbulences, unmodelled dynamics and variations of the helicopter dynamics.
Journal ArticleDOI
Computer Vision on Mars
Larry Matthies,Mark Maimone,Andrew E. Johnson,Yang Cheng,Reg G. Willson,Carlos Y. Villalpando,Steve Goldberg,Andres Huertas,Andrew Neil Stein,Anelia Angelova +9 more
TL;DR: The design and performance of computer vision algorithms used on Mars in the NASA/JPL Mars Exploration Rover (MER) mission was a major step forward in the use ofComputer vision in space.
Proceedings ArticleDOI
Nonlinear model for a small-size acrobatic helicopter
Abstract: A nonlinear model for small-size helicopters was developed and validated using flight data collected on a small-size acrobatic helicopter. The model concentrates on the key effects in the dynamics of small-size helicopter, resulting in a simple model featuring a small set of physical parameters. Validation of the model by comparison of model responses to real flight-test data showed good fidelity for a wide range of conditions including acrobatic maneuvers. The model is integrated into a real-time hardware-inthe-loop simulation environment used for the development of flight control systems and path-planning algorithms that are needed for highly maneuverable autonomous small-size helicopters.
Dissertation
Autonomous aerobatic maneuvering of miniature helicopters
TL;DR: Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2003 as mentioned in this paper, was the first work to address the problem of space flight.
References
More filters
Book
Engineering Applications of Correlation and Spectral Analysis
TL;DR: This chapter discusses single-Input/Single-Output Relationships, nonstationary data analysis techniques, and procedures to Solve Multiple- Input/Multiple-Output Problems.
Book
Dimensional analysis and theory of models
TL;DR: Dimensional analysis as discussed by the authors is a technique that involves the study of dimensions of physical quantities and is used primarily as a tool for obtaining information about physical systems too complicated for full mathematical solutions to be feasible.
Book
Helicopter Flight Dynamics: The Theory and Application of Flying Qualities and Simulation Modelling
TL;DR: In this article, the authors present a new chapter on degraded flying qualities, drawing examples from flight in poor visibility, failure of control functions, and encounters with severe atmospheric disturbances, and fully embracing the consequences of degraded flying quality during the design phase will contribute positively to safety.