Browsing by Author "Skoblikov, Sergii"

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    DoA estimation with reflectarray according to single pixel camera principle
    (IEEE, 2015) Skoblikov, Sergii; Ibrahim, Mohamed; Römer, Florian; S. Thomä, Reiner; Del Galdo, Giovanni
    This paper suggests using a tunable reflectarray as a hardware source of Sensing Functions (SFs) for Direction of Arrival (DoA) estimation based on Compressed Sensing (CS). Reflectarray is much more scalable than a conventional antenna array. This higher scalability can be exploited to build a measurement hardware with large aperture and high number of degrees of freedom. We introduce the simplified reflectarray propagation model, based on which we propose a number of possible measurement architectures, for each of them we show how the Sensing Matrix (SM) will be defined. Finally, a typical non-sparse beampattern is obtained using numeric simulation.
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    Numerical Assessment of Reflectarray Applicability to CS-based DoA Estimation
    (IEEE, 2015) Skoblikov, Sergii; Ibrahim, Mohamed; Römer, Florian; S. Thomä, Reiner
    This paper examines the performance of tunable reflectarray for Direction of Arrival (DoA) estimation based on Compressed Sensing (CS). Using a reflectarray lifts the limitation on array size compared to classical antenna arrays and provides significantly increased number and complexity of the Sensing Functions (SFs), which boosts the performance of the CS. The paper presents the data model of the reflectarray and analyzes its performance in terms of manifold spatial correlation.