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van der Ploeg, C. (author), Alirezaei, M. (author), van de Wouw, N. (author), Esfahani, P.M. (author)In this article, we propose a tractable nonlinear fault estimation filter along with explicit performance bounds for a class of linear dynamical systems in the presence of both additive and nonlinear multiplicative faults. We consider the case, where both faults may occur simultaneously and through an identical dynamical relationship, a setting...article 2022
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Heras, M.L.G. (author), Garcia, A.C. (author), Soriano, J.C. (author), De La Haba, J.L.G. (author), Le Roy-Naneix, I. (author), Kemkemian, S. (author), Thorsell, M. (author), Brandfass, M. (author), Brouard, P. (author), Boman, T. (author), Durst, S. (author), Nanni, A. (author), De Wit, J.J.M. (author), Calfa, U. (author), Sakalas, M. (author)The project European active electronically scanned array with Combined Radar, Electronic Warfare (EW) and Communications (COMMs) functions for military applications, called CROWN, was launched in July 2021 under the European program of Preparatory Action for Defence Research (PADR) and Electromagnetic Spectrum Dominance Call. It responds to the...conference paper 2022
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Akesson, B. (author), Nasri, M. (author), Nelissen, G. (author), Altmeyer, S. (author), Davis, R.I. (author)This paper presents results and observations from a survey of 120 industry practitioners in the feld of real-time embedded systems. The survey provides insights into the characteristics of the systems being developed today and identifes important trends for the future. It extends the results from the survey data to the broader population that it...article 2022
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Keyvani Janbahan, A. (author), van der Veen, G. (author), Tamer, M.S. (author), Sadeghian Marnani, H. (author), Goosen, H. (author), van Keulen, F. (author)The real-time and accurate measurement of tip-sample interaction forces in Tapping Mode Atomic Force Microscopy (TM-AFM) is a remaining challenge. This obstruction fundamentally stems from the causality of the physical systems. Since the input of the dynamic systems propagates to the output with some delay, and multiple different inputs can...article 2020
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Akesson, B. (author), Nasri, M. (author), Nelissen, G. (author), Altmeyer, S. (author), Davis, R.I. (author)This paper presents results and observations from a survey of 120 industry practitioners in the field of real time embedded systems. The survey provides insights into the characteristics of the systems being developed today and identifies important trends for the future. The survey aims to inform both academics and practitioners, helping to...conference paper 2020
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Hussain, I. (author), Bletsas, K. (author), Awan, M.A. (author), Akesson, B. (author), Souto, P.F. (author), Tovar, E. (author)The well-known model of Vestal aims to avoid excessive pessimism in the quantification of the processing requirements of mixed-criticality systems, while still guaranteeing the timeliness of higher-criticality functions. This can bring important savings in system costs, and indirectly help meet size, weight and power constraints. This efficiency...conference paper 2019
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Awan, M.A. (author), Bletsas, K. (author), Souto, P.F. (author), Akesson, B. (author), Tovar, E. (author)In mixed-criticality systems, tasks of different criticality share system resources, mainly to reduce cost. Cost is further reduced by using adaptive mode-based scheduling arrangements, such as Vestal's model, to improve resource efficiency, while guaranteeing schedulability of critical functionality. To simplify safety certification, servers...conference paper 2019
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Wessels, J.F.M. (author), van der Mark, P.J. (author), Bektas, K.E. (author), Bakker, J. (author), van der Voort, M. (author)Transportation infrastructure assets are designed to meet pre-specified reliability, availability, maintainability and safety (RAMS) requirements. Electrical and mechanical components are critical elements with respect to the RAMS-criteria. Unplanned failure of these components lead to societal impact, unsafe situations or costs. The trend in...conference paper 2019
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van de Wouw, D.W.J.M. (author), ter Haar, F.B. (author), Dubbelman, G. (author), de With, P.H.N. (author)We propose a real-time change detection system to be used as a vehicle-mounted early-warning system for indicators of improvised explosive devices. Within the context of military route clearance, the system automatically detects suspicious changes in the environment with respect to a previous patrol. For this purpose, historical images of the...article 2019
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Catthoor, F. (author), Basten, T. (author), Zompakis, N. (author), Geilen, M.C.W. (author), Kjeldsberg, P.G. (author)The focus of this book is on the principles and the use of the system scenario approach. This concept effectively supports the efficient realization of systems in the presence of strong dynamic behavior. The efficiency can be obtained in a multi-dimensional cost space. Realizations can involve the mapping of applications on some type of...bookPart 2019
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Pacini, F. (author), Paoli, G. (author), Cayón, I. (author), Rivera, T. (author), Sarmiento, B. (author), Kebkal, K. (author), Kebkal, O. (author), Kebkal, V. (author), Geelhoed, J. (author), Schipperijn, B. (author), Dol, H.S. (author), Skogseth, T. (author)The management of a heterogeneous mix of underwater vehicles needs a robust and reliable communication network, able to connect the remote command and control station (typically ashore or on board of a support ship) with nodes and vehicles in the deep sea. on the basis of this scenario, the infrastructure shall satisfy requirements such as:...conference paper 2018
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Bryllert, T. (author), Svedin, J. (author), Karlsson, M. (author), Gandini, E. (author), Llombart, N. (author), Drakinskiy, V. (author), Stake, J. (author)We present a 220 GHz imaging radar prototype that has been developed in the European Defense Agency (EDA) project TIPPSI. The purpose of the development was to demonstrate short-range high-resolution 3D imaging for security applications at checkpoints, and to guide the development of stand-off real-time millimeter wave and sub-millimeter wave...conference paper 2018
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Ara, H.A. (author), Geilen, M. (author), Behrouzian, A. (author), Basten, A.A. (author)In multi-media applications, bufers represent storage spaces that are used to store the data communicated between diferent tasks in the application, and throughput refers to the rate at which output data is produced by the application. The capacities of the bufers inluence the throughput, by altering the waiting times for tasks that need to read...conference paper 2018
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Satsangi, Y. (author), Whiteson, S. (author), Oliehoek, F.A. (author), Bouma, H. (author)Automated tracking is key to many computer vision applications. However, many tracking systems struggle to perform in real-time due to the high computational cost of detecting people, especially in ultra high resolution images. We propose a new algorithm called PartiMax that greatly reduces this cost by applying the person detector only to the...conference paper 2017
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van Loon, R.J. (author), Brouwer, R.F.T. (author), Martens, M.H. (author)Internationally, drowsy driving is associated with around 20% of all crashes. Despite the development of different detection methods, driver drowsiness remains a disconcerting public health issue. Detection methods can estimate drowsiness by directly measuring the physiology of the driver, or they can measure the effect that drowsiness has on...article 2015
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Kester, L.J.H.M. (author), van Willigen, W. (author), de Jongh, J.F.C.M. (author)This article proposes a safety check extension to Adaptive Cruise Control systems where the critical headway time is estimated in real-time. This critical headway time estimate enables automated reaction to crisis circumstances such as when a preceding vehicle performs an emergency brake. We discuss a method for critical headway approximation...conference paper 2014
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van Rossum, W.L. (author), Otten, M.P.G. (author), van Dorp, Ph. (author)A light weight SAR, suitable for use on short range tactical UAV, has been designed and built. The system consists of a fully digital receive array, and a very compact active transmit antenna. The approximate weight of the complete system is 6 kg, with power consumption below 75 W, depending on the required data acquisition volume. This X-band...conference paper 2012
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Doelman, N.J. (author), Fraanje, P.R. (author), Houtzager, I. (author), Verhaegen, M. (author), TNO Industrie en Techniek (author)An optimal control method to reject turbulence-induced wavefront distortions in an Adaptive Optics system is discussed. Details of a data-driven control approach are presented where the emphasis is put on the estimation of the optimal predictor of the wavefront disturbance. Several algorithms capable of finding the predictor parameters from the...conference paper 2009
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Bosse, T. (author), van Maanen, P.P. (author), Treur, J. (author), TNO Defensie en Veiligheid (author)In this paper a simulation model for visual attention is discussed and formally analysed. The model is part of the design of an agent-based system that supports a naval officer in its task to compile a tactical picture of the situation in the field. A case study is described in which the model is used to simulate a human subject's attention. The...article 2009
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Cantarini, J. (author), Hildebrandt, D. (author), König, R. (author), Klinkhamer, J.F.F. (author), Moddemeijer, K. (author), Vliegenthart, W.A. (author), Wolf, R. (author), TNO Industrie en Techniek (author)For the Wendelstein 7-X stellarator, which will allow quasicontinuous operation (τ30 min) with 10 MW of electron cyclotron radiation heating power, a conceptual design study for an IR/visible viewing system (IVVS) has been elaborated. Ten such systems, as part of the machine protection system, will be required for real time monitoring of all ten...article 2008
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