Searched for: subject%3A%22Space%255C%2Bapplications%22
(1 - 20 of 20)
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Kuiper, S. (author), Doelman, N.J. (author), Overtoom, T. (author), Nieuwkoop, E. (author), Russchenberg, T. (author), van Riel, M.J.C.M. (author), Wildschut, J.A. (author), Baeten, M.J.J. (author), Spruit, W.E.T. (author), Brinkers, S. (author), Human, J.D. (author)
To increase the collecting power and to improve the angular imaging resolution, space telescopes are evolving towards larger primary mirrors. The aerial density of the telescope mirrors needs to be kept low, however, to be compatible with the launch requirements. A light-weight (primary) mirror will introduce additional optical aberrations to...
conference paper 2017
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de Goeij, B.T.G. (author), Otter, G.C.J. (author), van Wakeren, J.M.O. (author), Veefkind, J.P. (author), Vlemmix, T. (author), Ge, X. (author), Levelt, P.F. (author), Dirks, B.P.F. (author), Toet, P.M. (author), van der Wal, L.F. (author), Jansen, R. (author)
In recent years TNO has investigated and developed different innovative opto-mechanical designs to realize advanced spectrometers for space applications in a more compact and cost-effective manner. This offers multiple advantages: a compact instrument can be flown on a much smaller platform or as add-on on a larger platform; a low-cost...
conference paper 2017
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Leijtens, J. (author), Vliegenthart, W. (author), Lampridis, D. (author), Vacanti, G. (author), Monna, B. (author), Bechthum, E. (author), Hagenaars, K. (author), van der Heide, E. (author), Kruijff, M. (author), van Breukelen, E. (author), Lemair, A. (author)
conference paper 2017
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van der Wal, L.F. (author), de Goeij, B.T.G. (author), Jansen, R. (author), Oosterling, J.A.J. (author), Snijders, B. (author)
The market for nano-and microsatellites is developing rapidly. There is a strong focus on 2D imaging of the Earth's surface, with limited possibilities to obtain spectral information. More demanding applications, such as monitoring trace gases, aerosols or water quality still require advanced imaging instruments, which are large, heavy and...
conference paper 2016
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Jacobs, S. (author), Bekers, D. (author), Monni, S. (author), Otten, M. (author), Van Rossum, W. (author), Gerini, G. (author), Germani, C. (author), Fortini, D. (author), Toso, G. (author)
This contribution addresses the problem of designing a sparse active array antenna for spaceborne SAR applications at Ka-band. The main driver for the design is limiting the recurring manufacturing costs associated to the number of active modules, while preserving main performance and insuring a certain level of industrial feasibility. A sparse...
conference paper 2015
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Minoglou, K. (author), San Segundo Bello, D. (author), Sabuncuoglu Tezcan, D. (author), Haspeslagh, L. (author), van Olmen, J. (author), Merry, B. (author), Cavaco, C. (author), Mazzamuto, F. (author), Toqué-Trésonne, I. (author), Moirin, R. (author), Brouwer, E.A.M. (author), Toccafondi, M. (author), Preti, G. (author), Rosmeulen, M. (author), de Moor, P. (author)
Both ESA and the EC have identified the need for a supply chain of CMOS imagers for space applications which uses solely European sources. An essential requirement on this supply chain is the platformization of the process modules, in particular when it comes to very specific processing steps, such as those required for the manufacturing of...
conference paper 2014
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Steiner, R. (author), Pesch, A. (author), Erdmann, L.H. (author), Burkhardt, M. (author), Gatto, A. (author), Wipf, R. (author), Diehl, T. (author), Vink, H.J.P. (author), van den Bosch, B.G. (author)
The main challenges of fabricating diffraction gratings for use in earth monitoring spectrometers are given by the requirements for low stray light, high diffraction efficiency and a low polarization sensitivity. Furthermore the use in space also requires a high environmental stability of these gratings. We found that holography in combination...
conference paper 2013
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van Heijningen, M. (author), van der Bent, G. (author), Rodenburg, M. (author), van Vliet, F.E. (author), Quay, R. (author), Brückner, P. (author), Schwantuschke, D. (author), Jukkala, P. (author), Narhi, T. (author)
Solid-state power amplifiers at W-band (75 - 110 GHz) are attractive for the generation of local-oscillator (LO) power for super-heterodyne receivers operating at sub-millimetre wave frequencies, as needed for example in future space instruments for Earth observation. Apart from space applications there is a growing interest for these devices in...
conference paper 2012
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Grooters, R. (author), Heijningen, M. (author), van Vliet, F.E. (author)
TNO has a long history in design and development of dedicated RF MMICs to be used in all kind of applications and for different popular frequency bands, especially related to RADAR applications. These designs make use of the leading available MMIC processes, and commercialisation of some of these products is realized by introducing them as part...
conference paper 2011
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Do, M.N. (author), Suijker, E.M. (author), van Heijningen, M. (author), van Vliet, F.E. (author), Seelmann-Eggebert, M. (author), Quay, R. (author), Langrez, D. (author), Cazaux, J-L. (author)
In space applications, due to the large number of sources of interferences, RF receivers have to be as robust as possible to maintain good operation of the satellite. The system must maintain its performance under severe jamming conditions and the performance must not degrade when exposed to high input powers. To address the receivers’...
conference paper 2010
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Fischer, H.R. (author), Semprimoschnig, C.O.A. (author)
In this work, a new method, the scanning thermal microscopy method, is applied to study the durability of polymeric materials for space applications. The method was applied to study ground-tested as well as space-retrieved materials. Space-grade silicones, high-temperature polyimides, and the well-known second-surface-mirror-material,...
article 2009
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Neerincx, M.A. (author), Lindenberg, J. (author), Smets, N. (author), Grant, T. (author), Bos, A. (author), Olmedo-Soler, A. (author), Brauer, U. (author), Wolff, M. (author), TNO Defensie en Veiligheid (author)
For manned long-duration missions to the Moon and Mars, there is a need for a Mission Execution Crew Assistant (MECA) that empowers the cognitive capacities of human-machine teams during planetary exploration missions in order to cope autonomously with unexpected, complex and potentially hazardous situations. MECA requirements are being derived...
conference paper 2006
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Welland, W.H.M. (author), Cianfanelli, S. (author), van der Heijden, A.E.D.M. (author), Leeming, W. (author), TNO Defensie en Veiligheid (author)
In this paper, recent activities on the development of Hydrazinium Nitroformate (HNF) and HNF based propellants are discussed from different perspectives -programmatic, technical, and strategic. From a programmatic point of view, the current programmes on HNF and their goals are discussed in relation to the Milestone Decision Points that have...
conference paper 2006
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Janssen, E.G.O.N. (author), Tse, T.C. (author), Vanrobaeys, X. (author), Hagenbeek, D. (author), Chaerle, L. (author), van der Straeten, D. (author), Mas, J.L. (author), Elvira, J. (author), Hovland, S. (author), TNO Bouw en Ondergrond (author)
The capacity of producing fresh food meeting crew's nutritional requirements is an essential need for long-term planetary missions. To this end, the European Space Agency (ESA) has commissioned a feasibility study of Food Production Units (FPU) for their application in microgravity, transit and planetary environments. This paper describes the ...
conference paper 2005
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Haeseler, D. (author), Bombelli, V. (author), Vuillermoz, P. (author), Lo, R. (author), Maree, A.G.M. (author), Caramelli, F. (author), Prins Maurits Laboratorium TNO (author)
A study has been performed under contract from ESA/ESTEC identifying the development needs in Europe in the field of new green propellant utilization. Criteria for green propellants are defined and discussed. Promising propellants are identified together with their rating w.r.t. those criteria, in particular establishing a measure of the...
conference paper 2004
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Swinkels, B.L. (author), Wendrich, T.J. (author), Bhattacharya, N. (author), Wielders, A.A. (author), Braat, J.J.M. (author), Technisch Physische Dienst TNO - TH (author)
Space interferometers consisting of several free flying telescopes, such as the planned Darwin mission, require a complex metrology system to make all the components operate as a single instrument. This metrology system consists of various sub-systems to monitor distances, angles and speeds. Our research focuses on one of these sub-systems that...
conference paper 2004
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Stoll, M.P. (author), Buschmann, C. (author), Court, A.J. (author), Laurila, T. (author), Moreno, J. (author), Moya, I. (author), Technisch Physische Dienst TNO - TH (author)
Detecting vegetation fluorescence from space would provide new insight on terrestrial biosphere response to climate variability, and help quantifying atmospheric carbon sequestration. This paper outlines technical and scientific studies undertaken for the preparation of the FLEX-Fluorescence Explorer space mission proposed to ESA in the...
conference paper 2003
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TNO Fysisch en Elektronisch Laboratorium (author), van den Berg, T.W. (author), Smeenk, R.J.M. (author), Mazy, A. (author), Jacques, P. (author), Argüello, L. (author), Mills, S. (author)
The activity "Virtual Reality applied to Teletesting" is related to a wider European Space Agency (ESA) initiative of cost reduction, in particular the reduction of test costs. Reduction of costs of space related projects have to be performed on test centre operating costs and customer company costs. This can accomplished by increasing the...
conference paper 2003
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Fysisch en Elektronisch Laboratorium TNO (author), Jense, G.J. (author)
conference paper 1993
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Fysisch en Elektronisch Laboratorium TNO (author), Jense, G.J. (author), Kuijper, F. (author)
Virtual environmens(VE) technology is expected to make a big impact on future training and simulation systems. Direct stimulation of human senses (eyesight, auditory, tactile) and new paradigms for user input will improve the realism of simulations and thereby the effectiveness of training and simulation systems. After briefly summarising...
conference paper 1992
Searched for: subject%3A%22Space%255C%2Bapplications%22
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