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Thompson, D. (author), Squicciarini, G. (author), Zhang, J. (author), Lopez Arteaga, I. (author), Zea, E. (author), Dittrich, M.G. (author), Jansen, H.W. (author), Arcas, K. (author), Cierco, E. (author), Magrans, F.X. (author), Malkoun, A. (author), Iturritxa, E. (author), Guiral, A. (author), Stangl, M. (author), Schleinzer, G. (author), Martin Lopez, B. (author), Chaufour, C. (author), Wändell, J. (author)The noise produced during a train pass-by originates from several different sources such as propulsion noise, noise from auxiliary equipment, aerodynamic noise and rolling noise. The rolling noise is radiated by the wheels and the track and is excited by the wheel and rail unevenness, usually referred to as roughness. The current TSI Noise...article 2018
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Sertlek, H.Ö. (author), Binnerts, B. (author), Ainslie, M.A. (author)Sound mapping over large areas can be computationally expensive because of the large number of sources and large source-receiver separations involved. In order to facilitate computation, a simplifying assumption sometimes made is to neglect the sound speed gradient in shallow water. The accuracy of this assumption is investigated for ship...article 2016
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TNO Informatie- en communicatietechnologie (author), Djapic, R. (author), Leus, G. (author), van der Veen, A.J. (author), Trindade, A. (author)Ultra-wideband (UWB) wireless communication systems are based on the transmission of extremely narrow pulses, with a duration inferior to a nanosecond. The application of transmit reference(TR) to UWB systems allows to side-step channel estimation at the receiver, with a tradeoff of the effective transmission bandwidth, which is reduced by the...article 2006