Searched for: subject%3A%22Impulse%255C+response%22
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document
Goel, Saransh (author)
This research investigates the impact of multipath signals in UWB communications and explores their potential to improve localization accuracy of tags using the additional information captured in the Channel Impulse Response (CIR). While traditional localization typically relies on multiple anchors, this study focuses on using a single anchor...
master thesis 2024
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Yu, W. (author)
We are surrounded by all kinds of sounds at all times. What we hear varies with the physical environment and our position. Room impulse responses (RIRs) characterize the effect of the environment on a sound produced by a source. A first goal of this dissertation is to analyze RIRs and investigate how to extract environmental information from...
doctoral thesis 2024
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González, Rodrigo A. (author), Tiels, Koen (author), Oomen, T.A.E. (author)
Sampling in control applications is increasingly done non-equidistantly in time. This includes applications in motion control, networked control, resource-aware control, and event-based control. Some of these applications, like the ones where displacement is tracked using incremental encoders, are driven by signals that are only measured when...
journal article 2024
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Azimullah, Joshua (author)
A novel approach for determining the optimal location of a sound source within an acoustic environment is proposed. This approach involves the application of Importance Sampling to improve the efficiency of the existing method of acoustic ray-tracing for finding the frequency response at various listening locations. The results of this study do...
bachelor thesis 2023
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Chen, Qinyu (author), Chang, Yaoxing (author), Kim, Kwantae (author), Gao, C. (author), Liu, Shih Chii (author)
Keyword spotting (KWS) is an important task on edge low-power audio devices. A typical edge KWS system consists of a front-end feature extractor which outputs mel-scale frequency cepstral coefficients (MFCC) features followed by a back-end neural network classifier. KWS edge designs aim for the best power-performance-area metrics. This work...
conference paper 2023
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Zhang, H. (author), Berkhout, M. (author), Makinwa, K.A.A. (author), Fan, Q. (author)
This article presents a digital-input class-D amplifier (CDA) achieving high dynamic range (DR) by employing a chopped capacitive feedback network and a capacitive digital-to-analog converter (DAC). Compared with conventional resistive-feedback CDAs driven by resistive or current-steering DACs, the proposed architecture eliminates the noise...
journal article 2023
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Khosravi, M. (author), Smith, R. S. (author)
In this article, we consider the problem of system identification when side-information is available on the steady-state gain (SSG) of the system. We formulate a general nonparametric identification method as an infinite-dimensional constrained convex program over the reproducing kernel Hilbert space (RKHS) of stable impulse responses. The...
journal article 2023
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Eland, E.N. (author), Mehrotra, Shubham (author), Karmakar, S. (author), van Veldhoven, Robert (author), Makinwa, K.A.A. (author)
Zoom ADCs combine a coarse SAR ADC with a fine delta-sigma modulator (?SM) to efficiently obtain high energy efficiency and high dynamic range. This makes them well suited for use in various instrumentation and audio applications. However, zoom ADCs also have drawbacks. The use of over-ranging in their fine modulators may limit SNDR, large...
book chapter 2023
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Yu, W. (author), Kleijn, W.B. (author)
We describe a new method to estimate the geometry of a room and reflection coefficients given room impulse responses. The method utilizes convolutional neural networks to estimate the room geometry and multilayer perceptrons to estimate the reflection coefficients. The mean square error is used as the loss function. In contrast to existing...
journal article 2021
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Zaccà, V.G. (author), Martínez-Nuevo, Pablo (author), Møller, Martin Bo (author), Martinez, Jorge (author), Heusdens, R. (author)
Accurate sound field reproduction in rooms is often limited by the lack of knowledge of the room characteristics. Information about the room shape or nearby reflecting boundaries can, in principle, be used to improve the accuracy of the reproduction. In this paper, we propose a method to infer the location of nearby reflecting boundaries from...
conference paper 2020
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Tronchin, Lamberto (author), Merli, Francesca (author), Manfren, Massimiliano (author), Nastasi, B. (author)
During the renovation of auditoria and concert halls, the acoustic quality is normally evaluated from measurements of impulse responses. One possibility for evaluating the acoustic quality from the measurements (the simulations) consists of convolving anechoic music with the measured (or simulated) impulse responses. In this way, a psycho...
journal article 2020
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Liu, J. (author), Isufi, E. (author), Leus, G.J.T. (author)
In graph signal processing, signals are processed by explicitly taking into account their underlying structure, which is generally characterized by a graph. In this field, graph filters play a major role to process such signals in the so-called graph frequency domain. In this paper, we focus on the design of autoregressive moving average ...
conference paper 2018
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Jarquin Laguna, A. (author), Tsouvalas, A. (author)
The importance of transient analysis in hydraulic networks has been well recognized due to abrupt changes in flow or pressure introduced by valve closures or component failures. Therefore, accurate and robust numerical models are necessary to analyse the travelling pressure waves as a result of such sudden changes. This paper presents the...
journal article 2014
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Jarquin Laguna, A. (author), Tsouvalas, A. (author)
The importance of transient analysis in hydraulic networks has been well recognized due to abrupt changes in flow or pressure introduced by valve closures or component failures. Therefore, accurate and robust numerical models are necessary to analyse the travelling pressure waves as a result of such sudden changes. This paper presents the...
journal article 2014
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Van der Horst, T. (author)
The dynamics of systems can be analysed by combining the dynamics of its components. This method is generally know as dynamic substructuring. It allows for efficient computation of the dynamics of structures that would otherwise be to complex to determine. Most dynamic substructuring approaches use the frequency domain for the re-assembling of...
master thesis 2014
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Jarquin Laguna, A. (author), Tsouvalas, A. (author)
The importance of transient analysis in hydraulic networks has been well recognized due to abrupt changes in flow or pressure introduced by valve closures or component failures. Therefore, accurate and robust numerical models are necessary to analyse the travelling pressure waves as a result of such sudden changes. This paper presents the...
journal article 2014
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Martínez Castañeda, J.A. (author)
The "telephone'' model has been, for the last one hundred thirty years, the base of modern telecommunications with virtually no changes in its fundamental concept. The arise of smaller and more powerful computing devices have opened new possibilities. For example, to build systems able to give to the user the illusion of being talking to the...
doctoral thesis 2013
document
Veling, E.J.M. (author)
journal article 2010
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