Searched for: subject%3A%22Radar%255C+imaging%22
(1 - 10 of 10)
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Ehlers, Svenja (author), Klein, Marco (author), Heinlein, A. (author), Wedler, Mathies (author), Desmars, Nicolas (author), Hoffmann, Norbert (author), Stender, Merten (author)
Accurate short-term predictions of phase-resolved water wave conditions are crucial for decision-making in ocean engineering. However, the initialization of remote-sensing-based wave prediction models first requires a reconstruction of wave surfaces from sparse measurements like radar. Existing reconstruction methods either rely on...
journal article 2023
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Yuan, S. (author), Fioranelli, F. (author), Yarovoy, Alexander (author)
The problem of high-resolution direction-of-arrival (DOA) estimation based on a limited amount of snapshots in automotive multiple-input multiple-output (MIMO) radar has been studied. The number of snapshots is restricted to minimize target spread/migration in range and/or Doppler domains. A computationally efficient approach for side-looking...
journal article 2023
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Zhao, Yubin (author), Yarovoy, Alexander (author), Fioranelli, F. (author)
The need for technologies for Human Activity Recognition (HAR) in home environments is becoming more and more urgent because of the aging population worldwide. Radar-based HAR is typically using micro-Doppler signatures as one of the main data representations, in conjunction with classification algorithms often inspired from deep learning...
journal article 2022
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Yuan, S. (author), Aubry, P.J. (author), Fioranelli, F. (author), Yarovoy, Alexander (author)
The ambiguity problem of targets in Doppler beam sharpening (DBS) with forward-looking radar is considered. While DBS is proposed earlier to improve the angular resolution of the radar while keeping the antenna aperture size limited, such a solution suffers from ambiguities in the case of targets positioned symmetrically with respect to the...
journal article 2022
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Fioranelli, F. (author), Zhu, S. (author), Roldan Montero, I. (author)
Linked to the increasing availability of datasets for radar-based human activity recognition (HAR), in this Student Highlights contribution, we report on a classification project that a group of 23 graduate students performed at TU Delft. The students were asked to work in groups of 2-3 members and to use the publicly available University of...
journal article 2022
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Bristogiannis, Yperion (author)
The offshore industry can increase safety and efficiency during offshore operation by predicting actual wave induced ship-motions minutes ahead of time. By only using on-board equipment, such as the navigational radar, it is possible to deterministically predict incoming waves since the phase resolved<br/>description of the waves can be acquired...
master thesis 2021
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Fasoula, A. (author), Driessen, H. (author), Van Genderen, P. (author)
Taking into account sparsity of the reflectivity function of several radar targets of interest, efficient low-complexity automatic target recognition (ATR) systems can be designed. Such ATR systems would be based on two-dimensional (2D) spatial target models of low dimensionality, where critical information on the radar target signature is...
journal article 2010
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Slob, E.C. (author), Sato, M. (author), Olhoeft, G. (author)
During the past 80 years, ground-penetrating radar (GPR) has evolved from a skeptically received glacier sounder to a full multicomponent 3D volume-imaging and characterization device. The tool can be calibrated to allow for quantitative estimates of physical properties such as water content. Because of its high resolution, GPR is a valuable...
journal article 2010
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Savelyev, T. (author), Zhuge, X. (author), Yang, B. (author), Aubry, P. (author), Yarovoy, A. (author), Ligthart, L. (author), Levitas, B. (author)
This paper presents an experimental investigation of two approaches to short-range radar imaging at microwaves by means of ultra-wideband (UWB) technology. The first approach represents a classical synthetic aperture radar (SAR) that employs a transmit–receive antenna pair on mechanical scanner. The second one makes use of a multiple input...
journal article 2010
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Savelyev, T.G. (author), Yarovoy, A.G. (author), Ligthart, L.P. (author)
This paper presents a 3-D imaging technique for an ultra-wideband (UWB) ground penetrating radar (GPR) with a single transmit antenna and a linear receive array. The video impulse GPR working in the frequency band of 0.3–3 GHz has been designed in IRCTR for landmine detection, i.e., for a near-field application. Installed on a vehicle it can...
journal article 2008
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