Searched for: author%3A%22van+Rossum%2C+W.L.%22
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Cox, P.B. (author), van Rossum, W.L. (author)
Recent advances in digital beam forming for phased arrays in combination with digital signal processing should enable the development of multibeam radar in a bistatic configuration. In the bistatic setting, the pulse travelling outward from the transmitter should be followed or “chased” by the receiver. During transmission, depending on the...
conference paper 2020
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van Rossum, W.L. (author), Anitori, L. (author)
In this article a novel waveform based on agile (or irregular) pulse intervals is presented as a potential approach to simultaneously resolve both range and Doppler ambiguities using a single burst in radar measurements containing very far away and/or very fast targets. The paper shows that, the combination of irregularly spaced transmitted...
conference paper 2020
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de Wit, J.J.M. (author), van Rossum, W.L. (author)
A sensor network has been developed consisting of four RF nodes that automatically set up a network organization and synchronize wirelessly. In the system bistatic backscatter and forward scatter radar measurements are combined. For detection of small and slow targets, like humans, suppression of the background including the direct signals...
conference paper 2018
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de Wit, J.J.M. (author), van Rossum, W.L. (author)
Through-wall radar offers capabilities that allow an important contribution to inside-building awareness, such as target detection and tracking. However, reliable radar tracking of people inside a building is not a trivial task. In monostatic operation, radar measures the backscatter from people inside a building. The backscatter of people is...
conference paper 2017
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de Wit, J.J.M. (author), van Rossum, W.L. (author), Blacknell, D. (author), Muff, D. (author)
article 2017
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van Rossum, W.L. (author), de Wit, J.J.M. (author)
Through-wall radar allows for remote intelligence of building interiors including stand-off detection and tracking of persons inside a building. However, reliable radar tracking of people inside a building is not trivial. Conventional, monostatic through-wall radar measures the backscatter of moving people. The backscatter from a human is...
article 2017
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van Rossum, W.L. (author), Anitori, L. (author), van Dorp, P. (author), de Wit, J.J.M. (author), Harmanny, R.I.A. (author)
conference paper 2017
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Bekers, J. (author), Van Rossum, W.L. (author), Jacobs, S. (author), Heiligers, M.J.C. (author), Anitori, L. (author), Stolp, E. (author), Cifola, L. (author), Podt, M. (author)
conference paper 2016
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de Wit, J.J.M. (author), van Rossum, W.L. (author)
Automated extraction of building features is a great aid in synthesizing building maps from radar data. In this paper, a model-based method is described to detect and classify canonical scatters, such as corners and planar walls, inside a building. Once corners and walls have been located, a building map can be synthesized. To detect and...
article 2016
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Anitori, L. (author), van Rossum, W.L. (author), Huizing, A.G. (author)
In this paper we present some preliminary results on antenna array extrapolation for Direction Of Arrival (DOA) estimation using Sparse Reconstruction (SR). The objective of this study is to establish wether it is possible to achieve with an array of a given physical length the performance (in terms of accuracy, resolution and sidelobe level) of...
conference paper 2015
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van Rossum, W.L. (author), Caro Cuenca, M. (author)
An algorithm developed for optical images has been applied to radar data. The algorithm, Behavior Subtraction, is based on capturing the dynamics of a scene and detecting anomalous behavior. The radar application is the detection of small surface targets at sea. The sea surface yields the expected stable background dynamics, while a surface...
conference paper 2014
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van Rossum, W.L. (author), Nennie, F. (author), Deiana, D. (author), van der Veen, A.J. (author), Monni, S. (author)
The electrical properties of tissues samples are required for investigation and simulation purposes in biomedical applications of EM sensors. While available open literature mostly deals with ex-vivo characterization of isolated tissues, knowledge on dielectric properties of these tissues in their original environment is essential for an...
conference paper 2014
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Caro Cuenca, M. (author), Dheenathayalan, P. (author), van Rossum, W.L. (author), Hoogeboom, P. (author)
SAR interferometry (InSAR) requires coherent radar reflections to measure ground displacements. Howev-er, natural coherent reflectors are not always available due to changes in the scattering properties of the ground, e.g., growing vegetation. Furthermore, the opportunistic nature of InSAR measurements can limit its use for infrastructure...
conference paper 2014
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Otten, M.P.G. (author), van Rossum, W.L. (author), van der Graaf, M.W. (author), Vlothuizen, W.J. (author), Tan, R.G. (author)
An X-band Digital Array Synthetic Aperture Radar for a Short Range Tactical UAV is presented. The Frequency Modulated Continuous Wave radar principle in combination with digital beam forming over 24 receive channels is used to achieve low power and advanced imaging SAR capabilities on small platform. Novel SAR imaging modes are discussed, and...
conference paper 2014
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Otten, M.P.G. (author), van Rossum, W.L. (author), Tan, R. (author), Vlothuizen, W.J. (author), de Wit, J.J.M. (author)
A lightweight radar system, suitable for use on board small airborne platforms, has been built and tested. The radar system comprises a digital receive array, offering full beam forming flexibility at the cost of high data rates and heavy processing loads. In this paper, the requirements and architecture for multi-channel SAR processing are...
conference paper 2013
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de Wit, J.J.M. (author), van Rossum, W.L. (author), Miller, R.J. (author), Hyde, L. (author)
Radar systems suitable for stand-off mapping of building structures and through-wall surveillance allow covert reconnaissance of buildings and surveillance of people inside in support of e.g. police raids or search and rescue operations. In this paper the operational concept will be outlined for a multifunction radar system capable of stand-off...
conference paper 2013
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Anitori, L. (author), van Rossum, W.L. (author), Otten, M.P.G. (author), Maleki, A. (author), Baraniuk, R. (author)
In this paper the performance of a combined Constant False Alarm Rate (CFAR) Compressive Sensing (CS) radar detector is investigated Using the properties of the Complex Approximate Message Passing (CAMP) algorithm, it is demonstratedthat the behavior of the CFAR processor can be separated from that of the non-linear l1-norm recovery, thus...
conference paper 2013
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Anitori, L. (author), van Rossum, W.L. (author), Otten, M.P.G. (author), Maleki, A. (author), Baraniuk, R. (author)
In this paper we investigate the performance of a combined Compressive Sensing (CS) Constant False Alarm Rate (CFAR) radar processor under different interference scenarios using both the Cell Averaging (CA) and Order Statistic (OS) CFAR detectors. Using the properties of the Complex Approximate Message Passing (CAMP) algorithm, we demonstrate...
conference paper 2013
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Belfiori, F. (author), Monni, S. (author), van Rossum, W.L. (author), Hoogeboom, P. (author)
The design of passive coherent location radar, which exploits broadcasting transmitters of opportunity in the very high frequency (VHF) radio bandwidth, is presented. Here, the authors primarily focus on the system set-up and on the digital pre-processing steps. Emphasis is given to the antenna section analysis. The eight-element circular array,...
article 2012
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van Rossum, W.L. (author), de Wit, J.J.M. (author), Tan, R.G. (author)
At TNO an innovative concept to obtain inside building awareness with stand-off, through-the-wall radar has been developed: SAPPHIRE. The system concept exploits particular phase behavior in the 3D radar data to extract dominant scatterers inside a building. These scatterers can be reconstructed from the data using an overcomplete dictionary and...
conference paper 2012
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