Searched for: author:"Schleijpen, H.M.A."
(1 - 20 of 45)

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Veerman, H.E.T. (author), Schleijpen, H.M.A. (author), Brettschneider, S.A. (author), Amram, R. (author)
The observable infrared signature of naval platforms is crucial in determining survivability and is therefore an important issue in warfare. Increased detectability in the EM spectrum leads to higher susceptibility against threats like sea skimming anti-ship missiles. The infrared platform signature is not a fixed quantity but a highly dynamic...
conference paper 2020
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Schleijpen, H.M.A. (author), van Binsbergen, S.A. (author), Geljon, M. (author), Meuken, D. (author), Deiana, D. (author)
This paper will report on a first series of experiments of High Energy Laser effects on drones and drone components at TNO. After a description of the 30kW L3O laser facility at TNO, the experimental results will be discussed. The experiments were performed in an indoor facility and some considerations will be given on how to set up the...
conference paper 2020
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van Binsbergen, S.A. (author), van Zelderen, B. (author), Veraar, R.G. (author), Bouquet, F. (author), Halswijk, W.H.C. (author), Schleijpen, H.M.A. (author)
In performance prediction of IR sensor systems for missile detection, apart from the sensor specifications, target signatures are essential variables. Very often, for velocities up to Mach 2-2.5, a simple model based on the aerodynamic heating of a perfect gas was used to calculate the temperatures of missile targets. This typically results in...
conference paper 2017
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van Iersel, M. (author), Mack, A. (author), van Eijk, A.M.J. (author), Schleijpen, H.M.A. (author)
Looking through the atmosphere, it is sometimes difficult to see the details of an object. Effects like scintillation and blur are the cause of these difficulties. Exhaust plumes of e.g. a ship can cause extreme scintillation and blur, making it even harder to see the details of what lies behind the plume. Exhaust plumes come in different shapes...
conference paper 2014
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Toet, A. (author), Benoist, K.W. (author), van Lingen, J.N.J. (author), Schleijpen, H.M.A. (author)
There are many weapon systems in which a human operator acquires a target, tracks it and designates it. Optical countermeasures against this type of systems deny the operator the possibility to fulfill this visual task. We describe the different effects that result from stimulation of the human visual system with high intensity (visible) light,...
conference paper 2013
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Schleijpen, H.M.A. (author), Degache, M.A.C. (author), Veerman, H.E.T. (author), van Sweeden, R. (author), Devecchi, B.A. (author)
Infrared guided missiles are a threat for modern naval forces. The vulnerability of ships can be reduced by applying countermeasures such as infrared decoys and infrared signature reduction. This paper presents recent improvements in a simulation toolset which can be used for assessing the effectiveness of these measures. The toolset consists of...
conference paper 2012
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Schwering, P.B.W. (author), van den Broek, S.P. (author), Liem, K.D. (author), Schleijpen, H.M.A. (author)
conference paper 2012
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Degache, M.A.C. (author), Schleijpen, H.M.A. (author)
One of the TNO missions in support of the Dutch Ministry of Defence is to provide means for the assessment of operational electro-optical system performance in the various theaters. To quantify the impact of both the environment and actors? intrinsic properties in a maritime scenario, TNO has defined a simulation framework using EOSTAR Pro ...
conference paper 2012
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van den Broek, S.P. (author), Schwering, P.B.W. (author), Liem, K.D. (author), Schleijpen, H.M.A. (author)
In maritime operational scenarios, such as smuggling, piracy, or terrorist threats, it is not only relevant who or what an observed object is, but also where it is now and in the past in relation to other (geographical) objects. In situation and impact assessment, this information is used to determine whether an object is a threat. Single...
conference paper 2012
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Schleijpen, H.M.A. (author), Degache, M.A.C. (author), de Lange, D.J.J. (author), van Eijk, A.M.J. (author)
Over the last decades, despite considerable efforts to assess the impact of the environment on EO (Electro-Optical) propagation, very few, if any, operational tools have been made available to national Forces. Compared to the radar domain, the existing tools in the EO domain are still behind the desired Technology Readiness Level (TRL). The...
conference paper 2011
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Mieremet, A.L. (author), Schleijpen, H.M.A. (author), van Putten, F.J.M. (author), Veerman, H.E.T. (author), TNO Defensie en Veiligheid (author)
A theoretical and experimental study is performed to eliminate the effect of retroreflection of a camera by using masks. Theoretically, different types of masks are studied in terms of their capability to reduce the strength of the retroreflected signal while maintaining good camera image quality. Experimentally, the strength of retroreflected...
article 2010
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Schleijpen, H.M.A. (author), TNO Defensie en Veiligheid (author)
Target tracking and laser-based pointing from airborne platforms can be degraded significantly by the propagation environment around an airborne platform including zones of severe turbulence generated by rotor downwash and engine exhausts. This is the topic of the EDA study group ERG 108.019 on “Laser beam propagation and imaging through severe...
conference paper 2010
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Schleijpen, H.M.A. (author), TNO Defensie en Veiligheid (author)
The protection of ships against infrared guided missiles is a concern for modern naval forces. The vulnerability of ships can be reduced by applying countermeasures such as infrared decoys and infrared signature reduction. This paper presents a set of simulation tools which can be used for assessing the effectiveness of these measures. The...
conference paper 2010
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Oudart, C. (author), Michel, A.M. (author), Lonnoy, J. (author), Roux, N. (author), Lucas, A. (author), Lefebre, M. (author), Godard, A. (author), Schleijpen, H.M.A. (author), Degache, M.A.C. (author)
conference paper 2010
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Schleijpen, H.M.A. (author), Schoemaker, R.M. (author)
conference paper 2010
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van den Heuvel, J.C. (author), Schoemaker, R.M. (author), Schleijpen, H.M.A. (author)
conference paper 2010
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Schoemaker, R.M. (author), Schleijpen, H.M.A. (author), TNO Defensie en Veiligheid (author)
The protection of ships against infrared guided missiles is a concern for modern naval forces. The vulnerability of ships can be reduced by applying countermeasures such as infrared decoys and infrared signature reduction. This paper will present a set of simulation tools which can be used for assessing the effectiveness of these measures. The...
conference paper 2010
document
Schleijpen, H.M.A. (author), TNO Defensie en Veiligheid (author)
Target tracking and laser-based pointing from airborne platforms can be degraded significantly by the propagation environment around an airborne platform including zones of severe turbulence generated by rotor downwash and engine exhausts. This is the topic of the EDA study group ERG 108.019 on "Laser beam propagation and imaging through severe...
conference paper 2009
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van den Heuvel, J.C. (author), Schoemaker, R.M. (author), Schleijpen, H.M.A. (author), TNO Defensie en Veiligheid (author)
Current coastal operations have to deal with threats at short range in complex environments with both neutral and hostile targets. There is a need for fast identification, which is possible with a laser range profiler. A number of field trials have been conducted to validate the concept of identification with a laser range profile. A laser range...
conference paper 2009
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Kusmierczyk-Michulec, J.T. (author), Schleijpen, H.M.A. (author), TNO Defensie en Veiligheid (author)
The radiation coming from a laser which operates in the coastal zone can be detected not only when a detector is placed in front of the laser beam but also when it is located outside the main beam direction. The reason is that in a real detection scheme the power collected by a detector not only comes from direct radiation but also from other...
conference paper 2009
Searched for: author:"Schleijpen, H.M.A."
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