Closed-form 3D angle estimation with rectangular arrays via DFT Beamspace ESPRIT
- 17 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 1 (10586393) , 682-687
- https://doi.org/10.1109/acssc.1994.471539
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.Keywords
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