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Tauţan, A.M. (author), Young, A. (author), Wentink, E. (author), Wieringa, F.P. (author)
Methods for analyzing various motion artifacts in photoplethysmography (PPG) signals, recorded by a wristworn device are reported. The analysis looks both at intrinsic PPG signal properties, through standard deviation, skew and kurtosis, but also at its relationship to five possible motion reference signals, through the correlation coefficient...
conference paper 2015
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Fucke, L. (author), Groen, E. (author), Goman, M. (author), Abramov, N. (author), Wentink, M. (author), Nooij, S. (author), Zaichik, L.E. (author), Khrabrov, A. (author)
The objective of the European research project SUPRA (Simulation of Upset Recovery in Aviation) is to develop technologies that eventually contribute to a reduction of risk of Loss of control - in flight (LOC-I) accidents, today's major cause of fatal accidents in commercial aviation. To this end the project developed novel concepts to improve...
conference paper 2012
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Hogema, J.H. (author), Wentink, M. (author), Bertollini, G.P. (author)
The use of large displacement yaw cueing is becoming more common as a part of the motion cueing in driving simulators. It is expected that driving behaviour, comfort and realism will be positively affected by adding a yaw table, especially during low-speed turning manoeuvres. We used TNO's advanced motion platform Desdemona to explore the...
conference paper 2012
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Correia Grácio, B.J. (author), Wentink, M. (author), Bos, J.E. (author), van Paassen, M.M. (author), Mulder, M. (author)
In motion simulation, motion cueing algorithms are used to transform vehicle inertial cues into inertial cues that are within the simulator physical limits. Most motion cueing algorithms aim to minimize the error between these vehicle inertial cues and those generated by the simulator. Although this is one way to approach the problem, one can...
conference paper 2012
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Correia Grácio, B.J. (author), Wentink, M. (author), Bos, J.E. (author), van Paassen, M.M. (author), Mulder, M. (author)
In the field of motion simulation it was found that a visual amplitude equal to the inertial amplitude does not always provide the best perceived match between visual and inertial motion. This result is thought to be caused by the “quality” of the motion cues delivered by the simulator motion and visual systems. This paper studies how different...
conference paper 2012
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Ledegang, W.D. (author), Groen, E.L. (author), Wentink, M. (author)
This paper investigates how pilots' control behavior and motion perception during a simulated roll maneuver depends on the level of normal g load using a centrifuge-based simulator. Fourteen commercial pilots participated in the study, actively controlling a series of coordinated bank angle changes between -30 and +30 degrees. By changing the...
conference paper 2012
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Ledegang, W.D. (author), Groen, E.L. (author), Wentink, M. (author)
The aim of the collaborative European research project ‘Simulation of UPset Recovery in Aviation’ (SUPRA) is to develop breakthrough simulator technologies for teaching pilots to detect and recover from adverse flight upsets that could lead to unusual attitudes and loss-of-control. In the project, the high-performance research simulator...
conference paper 2011
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van Rooij, L. (author), Welten, J.C. (author), Broos, W.J.C. (author), op den Camp, O.M.G.C. (author), Wentink, M. (author)
conference paper 2011
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Correia Grácio, B.J. (author), van Paassen, M.M. (author), Mulder, M. (author), Wentink, M. (author), TNO Defensie en Veiligheid (author)
Generally, motion simulators present motion and visual cues different from each other due to the physical limitations of the motion platform. Nonetheless, high fidelity motion platforms are capable of simulating some maneuvers one-to-one, i.e., motion cues equal to visual cues. However, one-to-one simulation is normally not preferred by subjects...
conference paper 2010
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Feenstra, P. (author), van der Horst, A.R.A. (author), Correia Grácio, B.J. (author), Wentink, M. (author)
The goal of the presented study was to explore how simulator motion cueing affects the driver’s control performance of a car. We looked at steering behavior as a measure of control performance. The experimental task was a slalom maneuver where the car velocity was limited to 70 km/h. Subjective and objective variables were measured. This paper...
conference paper 2010
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Valente Pais, A.R. (author), van Paassen, M.M. (author), Mulder, M. (author), Wentink, M. (author), TNO Defensie en Veiligheid (author)
Following a previous study in the Simona simulator on perception of coherent visual and inertial cues in a flight simulator, an experiment is performed in the Desdemona simulator to investigate the influence of the frequency of visual and inertial stimuli on the limits of the perceived coherence zone. The coherence zone is defined as the range...
conference paper 2010
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Valente Pais, A.R. (author), van Paassen, M.M. (author), Mulder, M. (author), Wentink, M. (author), TNO Defensie en Veiligheid (author)
The development and tuning of flight simulator motion filters relies on understanding human motion perception and its limitations. Of particular interest to flight simulation is the study of visual-inertial coherence zones. Coherence zones refer to combinations of visual and inertial cues that, although not being physically coherent, still...
conference paper 2010
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Correia Grácio, B.J. (author), Wentink, M. (author), Groen, E. (author), Bles, W. (author), TNO Defensie en Veiligheid (author)
In centrifuge simulators pilots experience the G-forces and fast G-onsets encountered in the real fighter aircraft. The motion cueing principle that drives these simulators is based on creating G-forces by increasing the centripetal force of the centrifuge through a rotation of the simulator arm. The centrifuge usually spins at a constant 1.4 G...
conference paper 2009
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Wentink, M. (author), Correia Grácio, B.J. (author), Bles, W. (author), TNO Defensie en Veiligheid (author)
In the real world in which we move around, inertial and visual motion are usually equal; what you see is what you feel. In a simulator, however, this is usually not the case. On the contrary, due to the relatively small motion space of even the largest simulators, the inertial motion cues must be filtered and scaled down considerably. Typically,...
conference paper 2009
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Valente Pais, A.R. (author), van Paassen, M.M. (author), Mulder, M. (author), Wentink, M. (author), TNO Defensie en Veiligheid (author)
The importance of motion perception knowledge for flight simulation is widely recognized. The development and tuning of motion filters relies on understanding the human motion perception mechanisms and its limitations. Particularly interesting for flight simulation is the study of visual-vestibular coherence zones. Coherence zones refer to...
conference paper 2009
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TNO Defensie en Veiligheid (author), Correia Grácio, B. (author), Wentink, M. (author), Feenstra, P.J (author), Mulder, M. (author), Paassen M.M. van, (author), Bles, W. (author)
During advanced driving manoeuvres, drivers can be hypothesized to use all the available cues to optimize their performance. Fixed-base simulators are commonly used for training of these advanced driving manoeuvres, despite the fact that motion cues are not present. In this experiment we hypothesize that motion feedback improves driver...
conference paper 2009
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TNO Defensie en Veiligheid (author), Feenstra, P.J (author), Wentink, M. (author), Correia Grácio, B. (author), Bles, W. (author)
The goal of this study was to assess the effect of an increasing motion space on the fidelity of driving simulation in the Desdemona research simulator. The experimental task was a standardized slalom maneuver where the car velocity was limited to 70 km/h. Subjective measures, which included eight statements on realism and task performance were...
conference paper 2009
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Groen, E.L. (author), Wentink, M. (author), Trujillo, M. (author), Huhne, R. (author), TNO Defensie en Veiligheid (author)
Unsuccessful recovery from unusual flight attitudes, or “airplane upset”, is considered an important factor in civil aviation accidents. It is generally recognized that there is a clear need for enhanced training of recovery procedures from unusual flight attitudes, i.e. situations where an aircraft unintentionally exceeds the parameters of the...
conference paper 2008
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Wentink, M. (author), Valente Pais, R. (author), Mayrhofer, Mi. (author), Feenstra, P. (author), Bles, W. (author), TNO Defensie en Veiligheid (author)
conference paper 2008
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TNO Defensie en Veiligheid (author), Wentink, M. (author), Grácio, B. (author), Groen, E. (author), Feenstra, P. (author), Bles, W. (author)
conference paper 2008
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