2D-DOA Estimation of Noncircular Signals for Uniform Rectangular Array via Noncircular-ESPRIT

Abstract. In this paper, we propose the noncircular estimation signal parameters via rotational invariance techniques (NC-ESPRIT) algorithm as a two-dimension direction of arrival (2D-DOA) estimation algorithm for uniform rectangular array. Compared to conventional circular ESPRIT algorithm, the proposed algorithm exploits the property of noncircular signals through data expansion, so that the array aperture is doubled. Therefore, the angle estimation performance is superior to that of the circular ESPRIT algorithm. Moreover the proposed algorithm has no spectral peak searching and the two-dimension angle estimates can be paired automatically. Simulation results illustrate the effectiveness and improvement of the proposed algorithm.

[1]  Jerry M. Mendel,et al.  Applications of cumulants to array processing - I. Aperture extension and array calibration , 1995, IEEE Trans. Signal Process..

[2]  L. Scharf,et al.  Statistical Signal Processing of Complex-Valued Data: The Theory of Improper and Noncircular Signals , 2010 .

[3]  Jean Pierre Delmas,et al.  Stochastic Crame/spl acute/r-Rao bound for noncircular signals with application to DOA estimation , 2004, IEEE Transactions on Signal Processing.

[4]  M. Viberg,et al.  Two decades of array signal processing research: the parametric approach , 1996, IEEE Signal Process. Mag..

[5]  Florian Roemer,et al.  Efficient 1-D and 2-D DOA Estimation for Non-Circular Sourceswith Hexagonal Shaped Espar Arrays , 2006, 2006 IEEE International Conference on Acoustics Speech and Signal Processing Proceedings.

[6]  Zhang Xiaofei,et al.  A Novel DOA estimation Algorithm Based on Eigen Space , 2007, 2007 International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications.

[7]  Antonio Cantoni,et al.  Derivative constrained optimum broad-band antenna arrays , 1993, IEEE Trans. Signal Process..

[8]  Florian Roemer,et al.  Enhancements of unitary ESPRIT for non-circular sources , 2004, 2004 IEEE International Conference on Acoustics, Speech, and Signal Processing.