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Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers (1994)
Pacific Grove, CA, USA
Oct. 31, 1994 to Nov. 2, 1994
ISSN: 1058-6393
ISBN: 0-8186-6405-3
pp: 682-687
M.D. Zoltowski , Sch. of Electr. Eng., Purdue Univ., West Lafayette, IN, USA
M. Haardt , Sch. of Electr. Eng., Purdue Univ., West Lafayette, IN, USA
ABSTRACT
UCA-ESPRIT is a previously developed closed form algorithm for use in conjunction with a uniform circular array (UCA) that provides automatically paired source azimuth and elevation angle estimates. 2D DFT Beamspace ESPRIT is presented as an algorithm providing the same capabilities for a uniform rectangular array (URA). In the final stage of the algorithm, the real and imaginary parts of the i-th eigenvalue of a matrix yield the respective direction cosines of the i-th source relative to the two array axes. In addition to the reduction in computational complexity facilitated by operation in a reduced dimension beamspace, 2D DFT Beamspace ESPRIT is efficiently formulated in terms of real-valued computation throughout. Simulation results are presented verifying the efficacy of the method.<>
INDEX TERMS
computational complexity, direction-of-arrival estimation, discrete Fourier transforms, eigenvalues and eigenfunctions, matrix algebra
CITATION

M. Zoltowski, M. Haardt and C. Mathews, "Closed-form 3D angle estimation with rectangular arrays via DFT Beamspace ESPRIT," Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers(ACSSC), Pacific Grove, CA, USA, 1995, pp. 682-687.
doi:10.1109/ACSSC.1994.471539
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