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Cox, P.B. (author), Coutiño, M.A. (author), van Rossum, W.L. (author)Efficient clutter filtering for pulsed radar systems remains an open issue when employing pulse-to-pulse modulation and irregular pulse interval waveforms within the coherent processing interval. The range and Doppler domain should be jointly processed for effective filtering leading to a large computational overhead. In this paper, the joint...conference paper 2023
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Aiello, S. (author), Buis, E.J. (author), van der Knaap, F.G.P. (author)The optical data transport system of the KM3NeT neutrino telescope at the bottom of the Mediterranean Sea will provide more than 6000 optical modules in the detector arrays with a point-to-point optical connection to the control stations onshore. The ARCA and ORCA detectors of KM3NeT are being installed at a depth of about 3500 m and 2500 m,...article 2023
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Dol, H.S. (author), Blom, K. (author), Sotnik, D. (author), Nisssen, J. (author), Otnes, R. (author), Komulainen, A. (author), Campagnaro, F. (author)This paper reports on the results achieved in the European Defence Agency (EDA) project Smart Adaptive Longand Short-range underwater Acoustic network (SALSA), that was running from November 2018 to November 2022. SALSA was a European defence cooperation between The Netherlands (lead nation), Germany, Norway, Sweden and Finland. The objective...conference paper 2023
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Tous, L. (author), Govaert, J. (author), Harrison, S. (author), Carrière, C. (author), Barth, V. (author), Giglia, V. (author), Buchholz, F. (author), Chen, N. (author), Halm, A. (author), Faes, A. (author), Nogay, G. (author), Quest, H. (author), Roessler, T. (author), Fellmeth, T. (author), Reinwand, D. (author), Stolzenburg, H. (author), Schindler, F. (author), Mittag, M. (author), Morlier, A. (author), Bokalic, M. (author), Brecl, K. (author), Kikelj, M. (author), Topic, M. (author), Kester, J.C.P. (author), Wendlandt, S. (author), Galiazzo, M. (author), Voltan, A. (author), Galbiati, G. (author), Ortiga, M.E. (author), Torregrosa, F. (author), Grimm, M. (author), Denafas, J. (author), Radavicius, T. (author), Lukinskas, P. (author), Savisalo, T. (author), Regrettier, T. (author), Gordon, I. (author)The EU crystalline silicon (c-Si) PV manufacturing industry has faced strong foreign competition in the last decade. To strive in this competitive environment and differentiate itself from the competition, the EU c-Si PV manufacturing industry needs to (1) focus on highly performing c-Si PV technologies, (2) include sustainability by design, and...article 2023
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Yilmaz, P. (author), de Wild, J. (author), Aninat, R. (author), Weber, T. (author), Vermang, B. (author), Schmitz, J. (author), Theelen, M. (author)A post-mortem analysis is conducted after potential-induced degradation (PID) of a commercial copper-indium-gallium-selenide (CIGS) photovoltaic module. After PID, the conversion efficiency of the total module decreased by 62%. Electroluminescence images of the module show that the edges of the modules were much more affected by the PID than the...article 2023
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Calvi, L. (author), van Zandvoort, R. (author), Leufkens, L. (author), Hupperetz, J.F.B. (author), Habets, R. (author), Mann, D. (author), Meulendijks, N. (author), Verheijen, M.A. (author), Elen, K. (author), Hardy, A. (author), Van Bael, M.K. (author), Buskens, P. (author)The switching performance of W/VO2 nanoparticles in thermochromic glass laminates was investigated. W/VO2 powder was prepared, and displayed a phase transition temperature and switching enthalpy of 20.9 °C and 37.5 ± 0.2 J g-1, respectively. Using wet bead milling, the particle size was reduced from 24 ± 2 um to 120 ± 10 nm. In the same process,...article 2023
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Villa, S. (author), Aninat, R. (author), Yilmaz, P. (author), Kingma, A. (author), Dziechciarz, M. (author), van den Berg, J. (author), Bakker, K. (author), Theelen, M. (author)Moisture ingress is known to be one of the most frequent and detrimental causes of photovoltaic (PV) modules degradation. In an original approach, the present work applies the full analytic capability of lab-scale equipment to characterize a commercial Cu(In,Ga)(Se,S)2 (CIGS) module that degraded in the field due to moisture ingress. By...article 2023
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Mann, D. (author), Calvi, L. (author), Yeung, C.P.K. (author), Habets, R. (author), Elen, K. (author), Hardy, A. (author), Van Bael, M.K. (author), Buskens, P. (author)Thermochromic window coatings represent a promising technology to improve the energy efficiency of buildings in intermediate climates. With the technology approaching market introduction it is important to investigate its performance limits within smart windows and to identify existing development challenges. Here we analyze the theoretical...article 2023
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Song, Y. (author), Wolny, M. (author), Li, C. (author), Addis Mekonnen, K. (author), Ribeiro Barbio Correa, C. (author), Spiegelberg, M. (author), Tangdiongga, E. (author), Raz, O. (author)In this paper, we propose a compact optical wireless receiver based on micro-lens and photodiode array flip-chipped on a glass interposer. With simulation models and experiments, we verify the performance of two optical wireless communication receivers assembled based on this structure with gigabit and high-speed photodiodes. First, co...article 2023
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Ortiz Lizcano, J.C. (author), Villa, S. (author), Zhou, Y. (author), Frantzi, G. (author), Vattis, K. (author), Calcabrini, A. (author), Yang, G. (author), Zeman, M. (author), Isabella, O. (author)Herein, the application of a comprehensive modeling framework that can help optimize the design of multilayered optical filters for coloring photovoltaic (PV) modules is presented based on crystalline silicon solar cells. To overcome technical issues related to the implementation of color filters (CFs) on PV modules, like glare and color...article 2023
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Atanasov, A.N. (author), Oude Alink, M.S. (author), van Vliet, F.E. (author)We present a general analytical solution for the active input impedances of a given N-port impedance network as a function of the loading of its ports by either active or passive devices. To demonstrate the simplicity and ease of use of our approach, we derive the input impedance equations of a conventional balanced power amplifier (BPA) and the...article 2023
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Aghaei, M. (author), Fairbrother, A. (author), Gok, A. (author), Ahmad, S. (author), Kazim, S. (author), Lobato, K. (author), Oreski, G. (author), Reinders, A. (author), Schmitz, J. (author), Theelen, M.A.H. (author), Yilmaz, P. (author), Kettle, J. (author)The degradation of photovoltaic (PV) systems is one of the key factors to address in order to reduce the cost of the electricity produced by increasing the operational lifetime of PV systems. To reduce the degradation, it is imperative to know the degradation and failure phenomena. This review article has been prepared to present an overview of...article 2022
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Bui, T.C. (author), Singh, R. (author), OFarrell, T. (author), Scarano, G. (author), David, J.P.R. (author), Biagi, M. (author)Multi-primary modulation scheme has the potential to provide robust visible light communication links and mitigate any color fluctuations by providing identical chromaticity modulation alphabets. This work describes constellation optimization technique for multi-primary modulation (MPM), which shows that using different power levels for the...article 2022
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Blom, K.C.H. (author), Dol, H.S. (author), Berning, F. (author), van Walree, P.A. (author)For underwater acoustic modems to operate in a time-varying environment, in-mission adaptation is desirable. A physical layer has been designed that supports mechanisms for ad-hoc configuration changes based on (in-situ and indirectly obtained) channel and noise conditions. Coded preambles are used to instruct the receiver of a configuration...conference paper 2022
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Leva, S. (author), Ogliari, E. (author), Ott, M.G.C. (author), Aninat, R. (author), Yilmaz, P. (author)CIGS (CuInGaSe2) solar cells are electronic devices that directly transform sunlight into electricity and fall into the category of thin film photovoltaic devices. Currently, this type of solar cell has reached the record in photovoltaic conversion efficiency of around 23.35%. However, the maturity of a PV technology also requires reliability...conference paper 2022
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Korevaar, C.W. (author), Boschma, J.J. (author), den Breeje, R. (author), Ebert, J. (author)Optical feeder links (OFLs) benefit from the vast amount of bandwidth available in the THz-regime of the electro-magnetic spectrum, and could enable future terabit-per-second satellite systems. This study assesses the end-to-end performance of analog coherent OFLs for digital video broadcasting (DVB) applications, employing phase modulation (PM)...conference paper 2022
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Bekers, D.J. (author)In this paper we revisit and generalize the Multi-Tone Sinusoidal Frequency Modulation (MTSFM), which has been used in the past decade for various Radar and Sonar applications including optimal transmit waveform design, modelling non-linear frequency modulation, high-duty cycle sensors . In its original form, the MTSFM describes a phase...conference paper 2022
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ruben Vogt, M. (author), Riechelmann, S. (author), Gracia-Amillo, A.M. (author), Driesse, A. (author), Kokka, A. (author), Maham, K. (author), Karha, P. (author), Kenny, R. (author), Schinke, C. (author), Bothe, K. (author), Blakesley, J. (author), Music, E. (author), Plag, F. (author), Friesen, G. (author), Corbellini, G. (author), Riedel-Lyngskar, N. (author), Valckenborg, R. (author), Schweiger, M. (author), Herrmann, W. (author)The IEC 61853 standard series aims to provide a standardized measure for photovoltaic (PV) module energy rating, namely the Climate Specific Energy Rating (CSER). For this purpose, it defines procedures for the experimental determination of input data and algorithms for calculating the CSER. However, some steps leave room for interpretation...article 2022
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Soppe, W. (author), Kingma, A. (author), Roosen, D. (author)This paper describes mechanical degradation experiments carried out to simulate possible bending effects of flexible CIGS modules when mounted on flexible floaters on sea. In an offshore environment the PV modules are subjected to millions of deformations per year. It is concluded that the strain induced by the bending can lead to serious...conference paper 2022
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Yamaguchi, S. (author), van Aken, B.B. (author), Stodolny, M.K. (author), Loffler, J. (author), Masuda, A. (author), Ohdaira, K. (author)System voltages can cause significant degradation in photovoltaic modules. Polarization-type potential-induced degradation (PID) is accompanied by decreases in the short-circuit current density and the open-circuit voltage. The system voltage causes a polarization and surface charge accumulation, increasing the interface recombination. The...article 2021