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Direction and polarisation estimation using polarised cylindrical conformal arrays

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3 Author(s)
L. Zou ; School of Electronic Engineering, University of Electronic Science and Technology of China, No. 2006, Xiyuan Road, High-Tech Zone(West), Chengdu 611731, People's Republic of China ; J. Lasenby ; Z. He

In this study, the authors describe two-dimensional direction finding and signal polarisation estimation from a cylindrical conformal array consisting of directional and polarised antenna elements. Firstly, a simple and general transformation procedure, based on the mathematical framework of geometric algebra, is presented for arbitrary conformal arrays with polarised and directional antennas. Subsequently, the authors utilise the symmetry of cylindrical arrays to estimate signal parameters via rotational invariance techniques. The authors show how to iteratively estimate the azimuth and elevation angles of the incident signal, as well as its polarisation. To illustrate the versatility of this method, the results of simulations on a 3×4 cylindrical conformal array are shown and discussed.

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IET Signal Processing  (Volume:6 ,  Issue: 5 )