Searched for: subject:"process"
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document
Liu, J. (author), Isufi, E. (author), Leus, G.J.T. (author)
In the field of signal processing on graphs, graph filters play a crucial role in processing the spectrum of graph signals. This paper proposes two different strategies for designing autoregressive moving average (ARMA) graph filters on both directed and undirected graphs. The first approach is inspired by Prony's method, which...
journal article 2018
document
Zheng, Fangfang (author), van Zuylen, H.J. (author), Liu, Xiaobo (author)
Urban travel times are rather variable as a result of a lot of stochastic factors both in traffic flows, signals, and other conditions on the infrastructure. However, the most common way both in literature and practice is to estimate or predict only expected travel times, not travel time distributions. By doing so, it fails to provide full...
journal article 2017
document
Wang, F. (author), van Halem, D. (author), Liu, G. (author), Lekkerkerker-Teunissen, K. (author), van der Hoek, J.P. (author)
H2O2 residuals from advanced oxidation processes (AOPs) may have critical impacts on the microbial ecology and performance of subsequent biological treatment processes, but little is known. The objective of this study was to evaluate how H2O2 residuals influence sand systems with an emphasis on dissolved organic carbon (DOC) removal, microbial...
journal article 2017
document
Liu, X. (author), Markine, V.L. (author), Shevtsov, I. (author), Dollevoet, R.P.B.J. (author)
The continuous increasing demand of public transportation capacity requires the railway network operating in tight schedule. The high transporting volumes not only aggravate the degradation of railway infrastructure but also shorten the time for maintenance. Well-arranged infrastructure maintenance contributes to the budget reduction and...
conference paper 2015
document
Liu, P. (author), Groves, R.M. (author), Benedictus, R. (author)
Optical coherence elastography (OCE) has been applied to the study of microscopic deformation in biological tissue under compressive stress for more than a decade. In this paper, OCE has been extended for the first time, to the best of our knowledge, to deformation measurement in a glass fiber composite in the field of nondestructive testing. A...
journal article 2014
document
Liu, P. (author), Groves, R.M. (author), Benedictus, R. (author)
Based on a customized time-domain optical coherence tomography (OCT) system, a series of signal processing approaches have been designed and reviewed. To improve demodulation accuracy and image quality, demodulation approaches such as median filter, Hilbert transform, and envelope detector were investigated with simulated as well as experimental...
journal article 2013
Searched for: subject:"process"
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