Searched for: subject%3A%22Information%255C%2Btheory%22
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de Jong, N.J. (author), Otten, M.P.G. (author), Cuenca, M.C. (author), Uysal, F. (author), de Wit, J.J.M. (author)
This paper investigates the benefits of multichannel processing for inverse synthetic aperture radar (ISAR) imaging. There are potential advantages of multichannel processing in radar systems, for example, improved motion estimation, clutter suppression, extraction of supporting information, such as sea wave direction and speed, and ship wake...
conference paper 2021
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Devecchi, B.A. (author), Benoist, K.W. (author), Scheers, L.C.W. (author), Veerman, H.E.T. (author), Binsbergen, S.A. (author), van Eijk, A.M.J. (author)
Infrared imaging of the sea surface is used for many purposes, such as remote sensing of large oceanographic structures, environmental monitoring, surveillance applications and platform signature research. Many of these studies rely on determining the contrast of a target feature with its background and therefore benefit from accurately...
conference paper 2019
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Heiligers, M.J.C. (author), Huizing, A.G. (author)
conference paper 2018
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van Leeuwen, C.J. (author), Pawełczak, P. (author)
We propose a novel incomplete cooperative algorithm for distributed constraint optimization problems (DCOPs) denoted as Cooperative Constraint Approximation (CoCoA). The key strategy of the algorithm is to use a semi-greedy approach in which knowledge is distributed amongst neighboring agents, and assigning a value only once instead of an...
conference paper 2017
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Gallardo, L.F. (author), Möller, S. (author), Beerends, J. (author)
The performance of automatic speech recognition based on coded-decoded speech heavily depends on the quality of the transmitted signals, determined by channel impairments. This paper examines relationships between speech recognition performance and measurements of speech quality and intelligibility over transmission channels. Different to...
conference paper 2017
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Langley, D.J. (author), Tel, J.W. (author)
Protests that target firms’ socially irresponsible behavior are increasingly organized via digital media. This study uses two methods to investigate the effects that online protests and mitigating firm responses have on shareholders’ and consumers’ evaluation. The first method is a financial analysis that includes an event study which measures...
conference paper 2017
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van Rossum, W. (author), Huizing, A. (author)
In a phased array radar which uses Multiple Input Multiple Output (MIMO) techniques, each (group of) element(s) transmits a different waveform. This extra degree of freedom in the design of a phased array radar potentially yields an advantage for improved suppression of sidelobe clutter and jamming. In this paper a Space-Time Block Coding (STBC)...
conference paper 2015
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van Berlo, L.A.H.M. (author), Natrop, M. (author)
Building Information Modelling (BIM) is accepted as the new technology for design, engineering and collaboration AEC projects. BIM can be seen as a collection of objects, properties and relations. Many parties in the construction process use the data in their benefit. There is a group of people that has very specific needs on using BIM data: the...
article 2015
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Stefanovic, C. (author), Popovski, P. (author), Jorguseski, L. (author), Sernec, R. (author)
SUNSEED, 'Sustainable and robust networking for smart electricity distribution', is a 3-year project started in 2014 and partially funded under call FP7-ICT-2013-11. The project objective is to research, design and implement methods for exploitation of existing communication infrastructure of energy distribution service operators (DSO) and...
conference paper 2014
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van Foeken, E. (author), Kwakkernaat, M.R.J.A.E. (author)
The increasing demand for shared awareness in multi-platform sensor systems requires advanced wireless information sharing techniques. The analysis of these techniques requires information about communication resources and latency to be available in models. The work presented here introduces generic low complexity models that describe the...
conference paper 2011
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van Walree, P.A. (author), Jenserud, T. (author), Smedsrud, M. (author), TNO Defensie en Veiligheid (author)
In-situ measurements of the scattering function are used to drive a channel simulator developed in the context of underwater acoustic telemetry. Two operation modes of the simulator are evaluated. A replay mode is accomplished by interpolation of measured impulse responses. A second, stochastic mode delivers multiple realizations of a given...
article 2008
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Yang, H. (author), Schenk, T.C.W. (author), Smulders, P.F.M. (author), Fledderus, E.R. (author), TNO Informatie- en Communicatietechnologie (author)
This work investigates the joint impact of quantization and clipping, caused by analog-to-digital converters (ADCs) with low bit resolutions, on single- and multi-carrier block transmission systems in wireless multipath environments. We consider single carrier block transmission with frequency domain equalization (SC-FDE) and the multi-carrier...
conference paper 2008
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Trieschnigg, D. (author), Meij, E. (author), de Rijke, M. (author), Kraaij, W. (author), TNO Informatie- en Communicatietechnologie (author)
Over the years, the notion of concept relatedness has attracted considerable attention. A variety of approaches, based on ontology structure, information content, association, or context have been proposed to indicate the relatedness of abstract ideas. We propose a method based on the cross entropy reduction between language models of concepts...
conference paper 2008
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Rehatschek, H. (author), Sorschag, R. (author), Rettenbacher, B. (author), Zeiner, H. (author), Nioche, J. (author), de Jong, F. (author), Ordelmann, R. (author), van Leeuwen, D. (author), TNO Defensie en Veiligheid (author)
MediaCampaign's scope is on discovering and inter-relating advertisements and campaigns, i.e. to relate advertisements semantically belonging together, across different countries and different media. The project's main goal is to automate to a large degree the detection and tracking of advertisement campaigns on television, Internet and in the...
conference paper 2008
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Marck, J.W. (author), Kester, L.J.H.M. (author), Bergmans, J. (author), van Iersel, M. (author), van Foeken, E. (author), TNO Defensie en Veiligheid (author)
Research fields such as Network Enabled Capabilities, ubiquitous computing and distributed sensor networks, etc. deal with a lot of information and a lot of different processes to fuse data to a desired level of situation awareness. Already quite some research is done in applying information theoretic concepts to sensor management. Effective...
conference paper 2008
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Marck, J.W. (author), van Gosliga, S.P. (author), TNO Defensie en Veiligheid (author)
Decision support systems require a form of situation awareness. to generate situation awareness information is needed. not all available information is necessary or equally influential. this paper proposes a way to determine which and when information is relevant. the goal of this is to minimize communication and processing of irrelevant...
conference paper 2008
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Veugen, P.J.M. (author), TNO Informatie- en Communicatietechnologie (author)
The class of multiple-repetition strategies is known to achieve capacity for specific discrete memorylesschannels with noiseless feedback. We show, given an arbitrary discrete memoryless channel with noiselessfeedback, that the repetition parameters should be chosen close to the self information of a transmissionerror to maximise the...
article 2007
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Brümmer, N. (author), Burget, L. (author), Černocký, J.H. (author), Glembek, O. (author), Grézl, F. (author), Karafiát, M. (author), van Leeuwen, D.A. (author), Matějka, P. (author), Schwarz, P. (author), Strasheim, A. (author), TNO Defensie en Veiligheid (author)
This paper describes and discusses the "STBU" speaker recognition system, which performed well in the NIST Speaker Recognition Evaluation 2006 (SRE). STBU is a consortium of four partners: Spescom DataVoice (Stellenbosch, South Africa), TNO (Soesterberg, The Netherlands), BUT (Brno, Czech Republic), and the University of Stellenbosch ...
article 2007
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ter Haar, R. (author), Bronsvoort, W.F. (author), de Kraker, K.J. (author), TNO Defensie en Veiligheid (author)
In the conceptual design phase of warships, important decisions are made based on relatively little information. It isdecided here whether a concept is feasible, and whether the resulting model should be the basis for further development. The conceptual design phase is characterised by the frequent use of rule of the thumb methods. These methods...
conference paper 2007
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van Vossen, R. (author), Trampert, J. (author), TNO Defensie en Veiligheid (author)
Near-surface wavefield perturbations can be very complex and completely mask the target reflections. Despite this complexity, conventional methods rely on parameterizations characterized by simple time and amplitude anomalies to compensate for these perturbations. Determining and compensating for time shifts is generally referred to as (residual...
article 2007
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