Abstract
This paper proposes a new sparse array geometry for 2-D (azimuth and elevation) direction-of-arrival (DOA) estimation. The proposed array geometry is V-shaped sparse array, and it is composed of two linear portions which are crossing each other. The degrees of freedom of the sparse array are enhanced by sparse sampling property. In this respect, V-shaped coprime (VCA) and V-shaped nested array (VNA) structures are developed. VCA can resolve both azimuth and elevation angles up to MN sources with \(2M + N -1\) sensors in each portion, and the total number of sensors is \(4M+2N-3\). VNA can resolve \(O(N^2)\) sources with 2N sensors. Instead of 2-D grid search, the proposed method computes 1-D search for azimuth and elevation angle estimation in a computational efficient way. In order to solve the pairing problem in 2-D scenario, the cross-covariance matrix of two portion is utilized and 2-D paired DOA estimation is performed. The performance of the proposed method is evaluated with numerical simulations, and it is shown that the proposed array geometries VCA and VNA can provide much less sensors as compared to the conventional coprime planar arrays.
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Y.I. Abramovich, D.A. Gray, A.Y. Gorokhov, N.K. Spencer, Positive-definite toeplitz completion in doa estimation for nonuniform linear antenna arrays. I. Fully augmentable arrays. IEEE Trans. Signal Process. 46(9), 2458–2471 (1998)
Y.I. Abramovich, N.K. Spencer, A.Y. Gorokhov, Positive-definite toeplitz completion in doa estimation for nonuniform linear antenna arrays. II. Partially augmentable arrays. IEEE Trans. Signal Process. 47(6), 1502–1521 (1999)
Y.Y. Dong, C.X. Dong, Y.T. Zhu, G.Q. Zhao, S.Y. Liu, Two-dimensional doa estimation for l-shaped array with nested subarrays without pair matching. IET Signal Process. 10(9), 1112–1117 (2016)
Y.Y. Dong, C.X. Dong, W. Liu, H. Chen, G.Q. Zhao, 2-D DOA estimation for l-shaped array with array aperture and snapshots extension techniques. IEEE Signal Process. Lett. 24(4), 495–499 (2017)
Y.Y. Dong, C.X. Dong, J. Xu, G.Q. Zhao, Computationally efficient 2-D DOA estimation for l-shaped array with automatic pairing. IEEE Antennas Wirel. Propag. Lett. 15, 1669–1672 (2016)
A.M. Elbir, L-shaped coprime array structures. IEEE Signal Process. Lett. (under review)
T. Filik, T.E. Tuncer, Uniform and nonuniform v-shaped planar arrays for 2-D direction-of-arrival estimation. Radio Sci. 44(5), n/a-n/a (2009). (RS5006)
B. Friedlander, A.J. Weiss, Direction finding in the presence of mutual coupling. IEEE Trans. Antennas Propag. 39(3), 273–284 (1991)
P. Hyberg, M. Jansson, B. Ottersten, Array interpolation and bias reduction. IEEE Trans. Signal Process. 52(10), 2711–2720 (2004)
P. Hyberg, M. Jansson, B. Ottersten, Array interpolation and DOA MSE reduction. IEEE Trans. Signal Process. 53(12), 4464–4471 (2005)
C.G. Khatri, C. Radhakrishna Rao, Solutions to some functional equations and their applications to characterization of probability distributions. Sankhy Indian J. Stat. Ser. A (1961-2002) 30(2), 167–180 (1968)
C.L. Liu, P.P. Vaidyanathan, Remarks on the spatial smoothing step in coarray music. IEEE Signal Process. Lett. 22(9), 1438–1442 (2015)
R.O. Nielsen, Azimuth and elevation angle estimation with a three-dimensional array. IEEE J. Ocean. Eng. 19(1), 84–86 (1994)
P. Pal, P.P. Vaidyanathan, Nested arrays: a novel approach to array processing with enhanced degrees of freedom. IEEE Trans. Signal Process. 58(8), 4167–4181 (2010)
P. Pal, P.P. Vaidyanathan, Coprime sampling and the musicalgorithm, in 2011 Digital Signal Processing and Signal Processing Education Meeting (DSP/SPE), pp. 289–294 (2011)
S.U. Pillai, Y. Bar-Ness, F. Haber, A new approach to array geometry for improved spatial spectrum estimation. Proc. IEEE 73(10), 1522–1524 (1985)
R.O. Schmidt, Multiple emitter location and signal parameter estimation. IEEE Trans. Antennas Propag. 34(3), 276–280 (1986)
P. Stoica, R.L. Moses., Spectral Analysis of Signals (2005)
N. Tayem, K. Majeed, A.A. Hussain, Two-dimensional doa estimation using cross-correlation matrix with l-shaped array. IEEE Antennas Wirel. Propag. Lett. 15, 1077–1080 (2016)
T.E. Tuncer, T.K. Yasar, B. Friedlander, Direction of arrival estimation for nonuniform linear arrays by using array interpolation. Radio Sci. 42(4), RS4002 (2007)
T.E. Tuncer, B. Friedlander, Classical and Modern Direction-of-Arrival Estimation (Academic Press, Cambridge, 2009)
M. Wax, T. Kailath, Detection of signals by information theoretic criteria. IEEE Trans. Acoust. Speech Signal Process. 33(2), 387–392 (1985)
Q. Wu, F. Sun, P. Lan, G. Ding, X. Zhang, Two-dimensional direction-of-arrival estimation for co-prime planar arrays: a partial spectral search approach. IEEE Sens. J. 16(14), 5660–5670 (2016)
Y. Yang, Z. Zheng, H. Yang, J. Yang, Y. Ge., A novel 2-d doa estimation method via sparse l-shaped array, in 2016 2nd IEEE International Conference on Computer and Communications (ICCC), pp. 1865–1869 (2016)
Z. Yang, L. Xie, On gridless sparse methods for line spectral estimation from complete and incomplete data. IEEE Trans. Signal Process. 63(12), 3139–3153 (2015)
W. Zheng, X. Zhang, H. Zhai, Generalized coprime planar array geometry for 2-D DOA estimation. IEEE Commun. Lett. 21(5), 1075–1078 (2017)
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Elbir, A.M. V-Shaped Sparse Arrays for 2-D DOA Estimation. Circuits Syst Signal Process 38, 2792–2809 (2019). https://doi.org/10.1007/s00034-018-0991-5
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DOI: https://doi.org/10.1007/s00034-018-0991-5