2-D PAIRED DIRECTION-OF-ARRIVAL ANGLE ESTIMATION WITH TWO PARALLEL UNIFORM LINEAR ARRAYS

Date

2011-06-01

Author

Filik, Tansu
Tuncer, Temel Engin

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Pairing problem for the azimuth and elevation angles of multiple sources is an important problem in two dimensional (2-D) direction-of-arrival (DOA) estimation. In this paper, a new technique is proposed for fast and automatically paired 2-D DOA estimation. This technique uses the magnitude and phase of the eigenvalues of the rotational transformation matrix of the ESPRIT algorithm. A special array geometry is chosen in order to take advantage of the ESPRIT method. The proposed technique is used in two different ways. In one case, array geometry is selected as two parallel uniform linear arrays (PULA). In the second approach, a virtual PULA is generated by using array interpolation. These two cases are compared in terms of the 2-D DOA estimation. While the PULA composed of the physical elements is a robust structure, virtual PULA has the advantage of decreasing the number of antennas and the following hardware. Several experiments are done and it is shown that both of the cases solve the pairing problem in 2-D DOA estimation effectively.

Subject Keywords

2-D direction-of-arrival (DOA) estimation, Pairing problem, Two parallel uniform linear arrays (PULAs), ESPRIT, Array interpolation

URI

https://hdl.handle.net/11511/55601

Journal

INTERNATIONAL JOURNAL OF INNOVATIVE COMPUTING INFORMATION AND CONTROL

Collections

Department of Electrical and Electronics Engineering, Article

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Uniform and Non-Uniform V-shaped Arrays for 2-D DOA Estimation Filik, Tansu; Tuncer, Temel Engin; Yasar, T. Kaya (2008-04-22) In this study, a new method for optimum design of uniform and non-uniform V-shaped arrays is presented for azimuth and elevation angle estimation. The proposed design method finds an optimum angle between the linear sub-arrays of the V-array by using the Cramer-Rao Bound (CRB) where statistical coupling effect between azimuth and elevation angle estimation is considered This method can be used to obtain directional and isotropic angle performances for uniform and non-uniform V-arrays. For non-uniform isotro...
Uniform and nonuniform V-shaped planar arrays for 2-D direction-of-arrival estimation Filik, T.; Tuncer, Temel Engin (American Geophysical Union (AGU), 2009-09-22) In this paper, isotropic and directional uniform and nonuniform V-shaped arrays are considered for azimuth and elevation direction-of-arrival (DOA) angle estimation simultaneously. It is shown that the uniform isotropic V-shaped arrays (UI V arrays) have no angle coupling between the azimuth and elevation DOA. The design of the UI V arrays is investigated, and closed form expressions are presented for the parameters of the UI V arrays and nonuniform V arrays. These expressions allow one to find the isotropi...

Citation Formats

T. Filik and T. E. Tuncer, “2-D PAIRED DIRECTION-OF-ARRIVAL ANGLE ESTIMATION WITH TWO PARALLEL UNIFORM LINEAR ARRAYS,” INTERNATIONAL JOURNAL OF INNOVATIVE COMPUTING INFORMATION AND CONTROL, pp. 3269–3279, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/55601.