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Thermal-Aware Synthesis of 5G Base Station Antenna Arrays: An Overview and a Sparsity-Based ApproachAslan, Y. (author), Puskely, J. (author), Janssen, J. H. J. (author), Geurts, Marcel (author), Roederer, A.G. (author), Yarovoy, Alexander (author)Heat removal capabilities and radiation performances of several sparse antenna array topologies are studied for cooling enhancement in 5G millimeter-wave base station antennas. Both electromagnetic and thermal aspects are jointly considered for the first time in array layout optimization and a novel connection between layout sparsity and thermal...journal article 2018
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Oude Nijhuis, A.C.P. (author), Thobois, L.P. (author), Barbaresco, F. (author), De Haan, S. (author), Dolfi Bouteyre, A. (author), Kovalev, D. (author), Krasnov, O.A. (author), Vanhoenacker-Janvier, D. (author), Wilson, R. (author), Yarovoy, Alexander (author)This article presents the prospects of measurement systems for wind hazards and turbulence at airports, which have been explored in the Ultrafast Wind Sensors (UFO) project. At France’s Toulouse–Blagnac Airport, in situ, profiling, and scanning sensors have been used to collect measurements, from which wind vectors and turbulence intensities are...journal article 2018
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Wang, J. (author), Yarovoy, Alexander (author)In this paper, sampling design of three-dimensional (3-D) synthetic array (i.e., synthetic volume array) for microwave imaging is considered. Generally, the spatial sampling criteria for one- or two-dimensional arrays can be determined based on some narrowband/ultrawideband array theories. However, for 3-D arrays, where antennas are located in a...journal article 2018
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Bogdanovic, N. (author), Driessen, J.N. (author), Yarovoy, Alexander (author)We consider a target selection problem for multitarget tracking in a multifunction radar network from a gametheoretic perspective. The problem is formulated as a noncooperative game. The radars are considered to be players in this game with utilities modeled using a proper tracking accuracy criterion and their strategies are the observed...journal article 2018
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A Linear Method for Shape Reconstruction based on the Generalized Multiple Measurement Vectors ModelSun, S. (author), Kooij, B.J. (author), Yarovoy, Alexander (author), Jin, T. (author)In this paper, a novel linear method for shape reconstruction is proposed based on the generalized multiple measurement vectors (GMMV) model. Finite difference frequency domain (FDFD) is applied to discretized Maxwell’s equations, and the contrast sources are solved iteratively by exploiting the joint sparsity as a regularized...journal article 2018
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Wang, J. (author), Aubry, P.J. (author), Yarovoy, Alexander (author)Ground penetrating radar imaging from the data acquired with arbitrarily oriented dipole-like antennas is considered. To take into account variations of antenna orientations resulting in spatial rotation of antenna radiation patterns and polarizations of transmitted fields, the full-wave method that accounts for the near-, intermediate-, and...journal article 2018
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Wang, J. (author), Aubry, P.J. (author), Yarovoy, Alexander (author)In this communication, a novel approach to rotated antenna array topology design is proposed for fully polarimetric short-range imaging. The rotated antenna array proposed acquires two co-pol and one cross-pol signals in terms of the “local” polarization basis by means of three antenna pairs. Then, the fully polarimetric signals in a global...journal article 2018
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Petrov, N. (author), le Chevalier, F. (author), Yarovoy, Alexander (author)This paper deals with the problem of coherent radar detection of fast moving targets in a high range resolution mode. In particular, we are focusing on the spiky clutter modeled as a compound Gaussian process with rapidly varying power along range. Additionally, a fast moving target of interest has a few range cells migration within the coherent...journal article 2018
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Sun, S. (author), Kooij, B.J. (author), Yarovoy, Alexander (author)The linear shape reconstruction method based on the generalized multiple measurement vectors model is a newly proposed approach which is able to effectively retrieve the morphological information of dielectric/metallic scatterers with competitive imaging resolution. In this letter, we have extended this approach to quantitative inversion, and...journal article 2018
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Sun, S. (author), Kooij, B.J. (author), Yarovoy, Alexander (author)In this paper, a linear model based on multiple measurement vectors' model is proposed to formulate the inverse scattering problem of highly conductive objects at one single frequency. Considering the induced currents that are mostly distributed on the boundaries of the scatterers, joint sparse structure is enforced by a sum-of-norm...journal article 2018
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Sun, S. (author), Kooij, B.J. (author), Yarovoy, Alexander (author)Cross-correlated contrast source inversion (CC-CSI) is a nonlinear iterative inversion method that is proposed recently for solving the inverse scattering problems. In CC-CSI, a cross-correlated error is constructed and introduced to the cost functional, which improves the inversion ability when compared to the classical design of the cost...journal article 2018
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Feng, Ruoyu (author), Uysal, Faruk (author), Aubry, P.J. (author), Yarovoy, Alexander (author)In this study, the authors propose a novel direction of arrival (DoA) estimation algorithm called ‘multiple-input–multiple-output (MIMO)–monopulse’ by combining the monopulse approach with MIMO radar. Monopulse is fast and accurate angle estimation algorithm, which has been well developed for tracking radar. The application of the monopulse...journal article 2018
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Xu, S. (author), Yarovoy, Alexander (author)This paper investigates the joint range, Doppler and Direction-of-Arrival (DOA) estimation with a wideband phased array in the presence of phase residual which brought by the range-Doppler couplings. 3D MUSIC algorithm is adopted and a compensation approach is proposed to eliminate the influence of the phase residual on the estimation...conference paper 2018
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Feng, Ruoyu (author), Uysal, Faruk (author), Yarovoy, Alexander (author)A novel target azimuth estimation algorithm called ”MIMO-Monopulse” is proposed by combining monopulse approach with multiple-input multiple-output (MIMO) radar. Chebyshev and Zolotarev weighting are applied to synthesis sum and difference pattern of MIMO-monopulse. A new visualization method for monopulse ratio is discussed. Finally, the...conference paper 2018
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Xu, S. (author), Wang, J. (author), Yarovoy, Alexander (author)Radar imaging using ultra-wideband (UWB) automotive radar is investigated. To overcome poor cross-range resolution of traditional beamforming (BF) algorithms, super resolution technique is applied for the Direction of Arrival (DOA) estimation. Both super-resolution algorithm and conventional BF method are used to process experimental data...conference paper 2018
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Wang, J. (author), Aubry, P.J. (author), Yarovoy, Alexander (author)A matrix-pencil based wavenumber-domain multiband fusion approach is proposed for improved microwave imaging. The suggested fusion approach is based on the fact from the Born approximation that the wavenumber-domain signal in a given scattering direction can be represented as a sum of the same number of contributions over the whole bandwidth....conference paper 2018
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Kabakchiev, H. (author), Behar, V. (author), Garvanov, I. (author), Kabakchieva, D. (author), Kabakchiev, K. (author), Rohling, H. (author), Kulpa, K. (author), Yarovoy, Alexander (author)In this paper, the possibility of GPS-based Forward Scatter Radar (GPS FSR), where satellites are exploited as sources of signals, to detect falling cosmic objects is examined. It is known that in FSR systems, the signal re-reflected by falling cosmic objects as masked by a much stronger direct signal. The goal of the article is to evaluate...conference paper 2018
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Wangkheimayum, Kajengkhombi (author), Krasnov, O.A. (author), Yarovoy, Alexander (author)A simplified polarimetric model for radar signal scattering on wind turbines (WT) is proposed, which can be used for interpretation of observation in time and Doppler domains. This model uses representation of real WT as slowly rotating linear wire structures. The earlier proposed model has been extended to more general cases of WT with...conference paper 2018
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Kabakchiev, C. (author), Garvanov, I. (author), Behar, V. (author), Kabakchiev, A. (author), Kabakchieva, D. (author), Rohling, H. (author), Kulpa, K. (author), Yarovoy, Alexander (author)In this paper, by comparing the GPS shadow parameters of the same cars obtainedf om the same satellites and recorded by the two different systems under the same conditions, the Stereo dual GNSSfi ont end (NSL's) and the GPS recording system of the Colorado University, we assess indirectly the capabilities of the new system for FSR...conference paper 2018
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Schöpe, M.I. (author), Driessen, J.N. (author), Yarovoy, Alexander (author)In this paper, waveforms for MIMO phased array radar to enhance cross-range resolution are investigated. The problem of high sidelobes in range created by the use of Hybrid Codes with a single waveform and spatial coding is considered and a method to reduce these sidelobes by the use of Golay sequences as spatial codes is proposed. It is shown...conference paper 2018