A Hybrid UCA-RARE/Root-MUSIC Approach for 2-D Direction of Arrival Estimation in Uniform Circular Arrays in the Presence of Mutual Coupling

Goossens, Roald; Rogier, Hendrik

doi:10.1109/tap.2007.891848

Cited by 107 publications

(73 citation statements)

References 15 publications

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“…1, we have plotted the cumulative distribution functions (cdfs) of log 10 (θ − θ) 2 with θ andθ in degrees, obtained by the M-C method and by the SCM (for Q = 44 quadrature points and for the three actual DOAs [20…”

Section: Numerical Resultsmentioning

confidence: 99%

Stochastic Framework for Evaluating the Effect of Displaced Antenna Elements on DOA Estimation

Inghelbrecht

Verhaevert

Hecke

et al. 2017

Antennas Wirel. Propag. Lett.

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Abstract-We establish a statistical framework for investigating the influence of correlated random displacements of antenna elements in a uniform circular antenna array (UCA) on the distribution of direction-of-arrival (DOA) estimates. More specifically, we apply a stochastic collocation method for modeling the sparse UCA root-MUSIC-DOA estimates as polynomial expansions of the random displacements. Compared to Monte-Carlo simulations, this approach yields a speedup of about 40 for the case of a displacement of two antenna elements.

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Section: Numerical Resultsmentioning

confidence: 99%

Stochastic Framework for Evaluating the Effect of Displaced Antenna Elements on DOA Estimation

Inghelbrecht

Verhaevert

Hecke

et al. 2017

Antennas Wirel. Propag. Lett.

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“…THE PROPOSED DIRECTIONAL-OF-ARRIVAL TECHNIQUE FOR SP MOBILE STATIONS The estimation of the source angular components (i.e. azimuth and elevation) requires a planar array including the two-orthogonal uniform linear array (the L-shaped array) [12], the rectangular array [13], and the uniform circular array (UCA) [14][15][16][17][18]. Among these array structures, the UCA has gained attention due to its symmetry in detecting angles over 360 degrees in the azimuth plane [19].…”

Section: Stratospheric Cellular Systemmentioning

confidence: 99%

A Novel Location Determination Technique for Traffic Control and Surveillance using Stratospheric Platforms

Albagory¹,

Nofal²,

El-Zoghdy³

2013

IJACSA

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Abstract-This paper presents a new technique for location determination using the promising technique of stratospheric platform (SP) flying at altitudes 17-22 km high and a suitable Direction-of-Arrival technique (DOA). The SP system is preferable due to its superior communication performance compared to conventional terrestrial and satellite systems. The proposed technique provides central information about accurate locations for mobile stations which is very important for traffic control and rescue operations at emergency situations. The DOA estimation in this technique defines the user location using high resolution DOA technique such as MUSIC which provides an accuracy comparable to the Global Positioning System (GPS) technique but without the need for GPS receivers. Several scenarios for users' locations determination are examined to define the robustness of the proposed technique.

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“…However, in practice, MUSIC algorithm has strict requirements with the placement of array elements, which has a great influence on DOA estimation accuracy, resolution and stability [8]. As a symbolic plane array, the uniform circular array (UCA) can provide both azimuth and elevation information ranging from 0° to 360° and also has other excellent performance such as circular symmetry properties [9][10][11][12][13][14]. Utilizing array manifold directly, the algorithm proposed in [15] could estimate the 2-D DOAs of a single extended signal combining least-squares (LS) method with weighted total LS (WTLS), which leads to a better performance.…”

Section: Introductionmentioning

confidence: 99%

A Novel DOA Estimation Algorithm Using Array Rotation Technique

et al. 2014

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Abstract:The performance of traditional direction of arrival (DOA) estimation algorithm based on uniform circular array (UCA) is constrained by the array aperture. Furthermore, the array requires more antenna elements than targets, which will increase the size and weight of the device and cause higher energy loss. In order to solve these issues, a novel low energy algorithm utilizing array base-line rotation for multiple targets estimation is proposed. By rotating two elements and setting a fixed time delay, even the number of elements is selected to form a virtual UCA. Then, the received data of signals will be sampled at multiple positions, which improves the array elements utilization greatly. 2D-DOA estimation of the rotation array is accomplished via multiple signal classification (MUSIC) algorithms. Finally, the Cramer-Rao bound (CRB) is derived and simulation results verified the effectiveness of the proposed algorithm with high resolution and estimation accuracy performance. Besides, because of the significant reduction of array elements number, the array antennas system is much simpler and less complex than traditional array. OPEN ACCESSFuture Internet 2014, 6 156

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A Hybrid UCA-RARE/Root-MUSIC Approach for 2-D Direction of Arrival Estimation in Uniform Circular Arrays in the Presence of Mutual Coupling

Cited by 107 publications

References 15 publications

Stochastic Framework for Evaluating the Effect of Displaced Antenna Elements on DOA Estimation

Stochastic Framework for Evaluating the Effect of Displaced Antenna Elements on DOA Estimation

A Novel Location Determination Technique for Traffic Control and Surveillance using Stratospheric Platforms

A Novel DOA Estimation Algorithm Using Array Rotation Technique

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