Proceedings ArticleDOI
A passive sensor for position and attitude estimation using an interferometric target
E. Feron,J. Paduano +1 more
- Vol. 2, pp 1663-1669
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TLDR
A new sensor technology aimed at better identifying the relative motion of two vehicles or in general two objects of large or small sizes is described.Abstract:
In this paper, we describe a new sensor technology aimed at better identifying the relative motion of two vehicles (eg the motion of a car from another car, or that of a ship from an helicopter etc.) or in general two objects of large or small sizes. The system described in this paper consists of an optical setup aimed at generating interference fringes made visible to one vehicle by the other vehicle (or, in general, to one object by the other object). The setup consists, on the one hand, of a flat target that generates interference fringes by using superimposed gratings; on the other hand, it includes an image acquisition system, such as a digital camera. There is a very widely documented use of gratings and moire effects to obtain relevant information about object shape and position.read more
Citations
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Proceedings ArticleDOI
Estimation and control of a quadrotor vehicle using monocular vision and moire patterns
TL;DR: In this article, a vision-based estimation and control of a quadrotor vehicle using a single camera relative to a novel target that incorporates the use of moire patterns is presented.
Journal ArticleDOI
Integration of a Triaxial Magnetometer into a Helicopter UAV GPS-Aided INS
Martin Barczyk,Alan F. Lynch +1 more
TL;DR: A novel magnetometer calibration procedure is implemented and compared with conventional approaches, and results confirm that the observability issue is resolved and demonstrate improvements in attitude estimation.
Patent
Passive positioning sensors
TL;DR: In this paper, the phase of the interference pattern was determined with a processor and the phase information was used to find the orientation of the viewer relative to the fringe pattern generator, and the distance to the generator was also found based on the interference patterns and position data relative to it.
Proceedings ArticleDOI
An experimental validation of magnetometer integration into a GPS-aided helicopter UAV navigation system
TL;DR: The integration of the calibrated magnetometer into the existing design of an existing navigation system for a helicopter Unmanned Aerial Vehicle (UAV) is experimentally shown to improve navigation filter accuracy.
Dissertation
Aggressive landing maneuvers for unmanned aerial vehicles
TL;DR: This thesis describes one possible control approach to enable landing of unmanned aircraft systems at all attitudes, including against walls and ceilings as a way to considerably enhance the operational capability of these vehicles.
References
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Proceedings ArticleDOI
A vision system for landing an unmanned aerial vehicle
TL;DR: Results from an actual flight test show the vision-based state estimates are accurate to within 5 cm in each axis of translation, and 5 degrees in eachaxis of rotation, making vision a viable sensor to be placed in the control loop of a hierarchical flight management system.
Proceedings ArticleDOI
Multiple view motion estimation and control for landing an unmanned aerial vehicle
TL;DR: A multiple view algorithm for vision based landing of an unmanned aerial vehicle is presented which exploits the rank deficiency of the so called multiple view matrix and shows how the use of multiple views significantly improves motion and structure estimation.
Proceedings ArticleDOI
Autonomous landing of airplanes by dynamic machine vision
E.D. Dickmanns,F.-R. Schell +1 more
TL;DR: The 4D approach to dynamic machine vision has been validated for the application area of on-board autonomous landing approaches in the visual flight regime with computing technology available today; sensors are a video-camera, inertial gyros and an air velocity meter.
Journal ArticleDOI
Autonomous landing of airplanes by dynamic machine vision
TL;DR: The 4D approach to dynamic machine vision has been validated for the application area of on-board autonomous landing approaches in the visual flight regime with computing technology available today; sensors are a video-camera, inertial gyros and an air velocity meter.
Proceedings ArticleDOI
Moire-based positioning system for microrobots
Ramon Estaña,Heinz Woern +1 more
TL;DR: In this article, a position sensing system called "MPS" is developed for microrobots with a resolution of 1 μm and a turn-around time of 0.2s.
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