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Paul, A. (author), Rafigh Doost, J. (author), Dou, X. (author), Pereira, S.F. (author)Nanostructures with steep side wall angles (swa) play a pivotal role in various technological applications. Accurate characterization of these nanostructures is crucial for optimizing their performance. In this study, we propose a far-field detection method based on coherent Fourier scatterometry (CFS) for accurate quantification of steep swa...journal article 2024
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Gong, J. (author)Quantum computers have gained widespread interest from both industry and academia in the last decade as they are very promising for solving problems intractable by classical computers. However, there is a limited number of qubits in current quantum processors, which impedes the practical applications of a quantum computer. To increase the number...doctoral thesis 2023
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- Hesam, A.S. (author), Pijpers, Frank (author), Rademakers, Fons (author), Al-Ars, Z. (author) poster 2023
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Refsgaard, Jens Christian (author), Mai, Juliane (author), Hrachowitz, M. (author), Jain, Sharad K. (author), Stisen, Simon (author)Catchment modelling has undergone tremendous developments during the past decades. In the 1970s, the focus was on simulation of catchment runoff with process descriptions and data inputs being lumped to the catchment scale. Later developments included spatially distributed models allowing data inputs and hydrological processes to be simulated at...journal article 2023
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Shokrolahzade, E. (author), De Martino, C. (author), Spirito, M. (author)In this contribution we present an approach to reduce the error arising from the variations of the lumped load, due to process spread, in probe level calibrations. First, full-wave electromagnetic (EM) simulations are employed to generate the nominal standard responses, then a parametric EM simulation of the load structure is used to generate a...conference paper 2023
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Mier Escurra, C. (author), Khamlichi, Abderrahim (author), Dalstein, Matthieu (author), Vidal, Jose Ramon (author), Garnacho, Fernando (author), Mor, Armando Rodrigo (author), Vu-Cong, Thanh (author)Driven by the voltage increase in high-voltage direct current (HVDC) gas-insulated substations (GISs), novel methods are needed for partial discharge (PD) detection and monitoring. This article shows a PD calibration method for very-high-frequency (VHF) magnetic and electric sensors in GIS. The calibration method uncertainty is tested in...journal article 2023
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Mier Escurra, C. (author), Mor, A. R. (author), Vaessen, P.T.M. (author)Partial discharge (PD) measurements in gasinsulated substations (GIS) are tested according to the standard IEC 60270. This “conventional” PD test method applies to electrically small devices. The equipment size increases the resonance, and attenuation, contributing to the total uncertainty. Additionally, when an ultra-high frequency (UHF) sensor...conference paper 2023
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Abunada, M.B.M. (author), Dhakal, Nirajan (author), Andyar, William Z. (author), Li, Yuke (author), Ajok, Pamela (author), Ghaffour, Noreddine (author), Schippers, Jan C. (author), Kennedy, M.D. (author)This study aimed to calibrate and validate the MFI-UF method in order to ensure the accuracy of particulate fouling measurements in RO. Firstly, the MFI-UF calibration was examined using two solutions of standard particles (dextran and polystyrene). Two main criteria were investigated: (i) MFI-UF linearity with particle concentrations at both...journal article 2023
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Petrov, N. (author), Yiğit, Erkut (author), Krasnov, O.A. (author), Yarovoy, Alexander (author)The paper presents the statistical analysis of trihedral corner reflectors RCS in presence of mass production and installation errors. It is shown that the degradation of RCS from its nominal value can be modeled by Beta distribution. The derived probability density functions (PDF) of corner reflector RCS is further exploited to design an...conference paper 2022
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Petrov, N. (author), Yarovoy, Alexander (author)This paper presents a new method of automotive MIMO radar self-calibration which uses targets of opportunity embedded in road infrastructure, such as road signs and traffic lights. While conventional offline calibration of a phased array antenna requires accurate knowledge of the positions of calibration targets relative to the radar, such...conference paper 2022
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Petrov, N. (author), Yarovoy, Alexander (author)The calibration of a collocated MIMO radar is addressed by means of independent calibration of transmit and receive arrays. The solutions for both arrays' elements gain and phase terms only and the full coupling matrix estimation are presented. The proposed solution significantly improves over the conventional calibration of the virtual array...conference paper 2022
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Domhof, J.F.M. (author), Kooij, J.F.P. (author), Gavrila, D. (author)We address joint extrinsic calibration of lidar, camera and radar sensors. To simplify calibration, we propose a single calibration target design for all three modalities, and implement our approach in an open-source tool with bindings to Robot Operating System (ROS). Our tool features three optimization configurations, namely using error...journal article 2021
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Petrov, N. (author), Krasnov, O.A. (author), Yarovoy, Alexander (author)This paper presents an analysis of a new method of automotive radar self-calibration which uses targets of opportunity. While conventional offline calibration of a phased array antenna requires accurate knowledge of the positions of calibration targets relative to the radar, such information is not available in a dynamic scenario. To...journal article 2021
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van der Stoep, A.W. (author), Grzelak, L.A. (author), Oosterlee, C.W. (author)We discuss a competitive alternative to stochastic local volatility models, namely the Collocating Volatility (CV) framework, introduced in [L. A. Grzelak (2019) The CLV framework-A fresh look at efficient pricing with smile, International Journal of Computer Mathematics 96 (11), 2209-2228]. The CV framework consists of two elements, a ...journal article 2020
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Yousefzadeh, B. (author), Makinwa, K.A.A. (author)This article presents a BJT-based temperature-to-digital-converter (TDC) that achieves ±0.25 °C 3 sigma -inaccuracy from -40 °C to +180 °C after a heater-assisted voltage calibration (HA-VCAL). Its switched-capacitor (SC) ADC employs two sampling capacitors and, thus, the minimum number of critical sampling switches, which minimizes the...journal article 2020
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Galatro, L. (author)As the number of wireless applications increases every year, overcrowding the RF/microwave spectrum, research community and industry are gradually starting to dedicate more attention to the less exploited (sub)millimeter wave spectrum, spanning from 30 GHz to 1 THz. While the high frequency and large available bandwidth of the latter promises...doctoral thesis 2019
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Ricciardella, F. (author), Polichetti, Tiziana (author), Vollebregt, S. (author), Alfano, Brigida (author), Massera, Ettore (author), Sarro, Pasqualina M (author)Limitations such as lack of detected stationary signal and slow signal recovery after detection currently affect graphene-based chemi-sensors operating at room temperature. In this work, we model the behavior of a sensor in a test chamber having limited volume and simulating the environmental conditions. From this model, we mathematically derive...journal article 2019
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Jatiningrum, D. (author)Fault-Tolerant Flight Control (FTFC) systems reconfigure aircraft flight control laws to help restore a controlled flight and preserve acceptable performance under systemfaults. A typical approach to achieve fault tolerance is using inertial sensor measurementswhich can provide robustness to abrupt changes in the aircraft dynamics. This method...doctoral thesis 2018
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Mier Escurra, G.A. (author), Mor, A. R. (author), Vaessen, P.T.M. (author)Nowadays, the use of several methods for the measurement of space charges in dielectrics has become more relevant. The availability of different space charge measurement methods brings the necessity of calibration and characterization of measurement equipment to reach standardized measurements. In this paper, a method is presented to apply known...journal article 2018
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Nijzink, R.C. (author), Almeida, S. (author), Pechlivanidis, I. G. (author), Capell, R. (author), Gustafssons, D. (author), Arheimer, B. (author), Parajka, J. (author), Freer, J. (author), Han, D. (author), Wagener, T. (author), van Nooijen, R.R.P. (author), Savenije, Hubert (author), Hrachowitz, M. (author)The calibration of hydrological models without streamflow observations is problematic, and the simultaneous, combined use of remotely sensed products for this purpose has not been exhaustively tested thus far. Our hypothesis is that the combined use of products can (1) reduce the parameter search space and (2) improve the representation of...journal article 2018