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Theory of angle estimation using a multiarm spiral antenna

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2 Author(s)
R. P. Penno ; Dept. of Electr. & Comput. Eng., Dayton Univ., OH, USA ; K. M. Pasala

An analysis of angle estimation using a single aperture, multimode spiral is presented. It is demonstrated that in addition to the classical Comparison method, modern parameter estimation techniques such as Multiple Signal Classification (MUSIC) and MLM (Maximum Likelihood Method) can be applied to multimode antenna technology for angle estimation. These techniques, coupled with the advent of digital receivers make possible the elimination of the mode-forming network. Results of computer simulations show that these new approaches give lower bias and variance, and also extend coverage toward boresight compared with the traditional Comparison method

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IEEE Transactions on Aerospace and Electronic Systems  (Volume:37 ,  Issue: 1 )