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Progress In Electromagnetics Research
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EFFICIENT NEURAL NETWORK APPROACH FOR 2D DOA ESTIMATION BASED ON ANTENNA ARRAY MEASUREMENTS

By M. Agatonovic, Z. Stankovic, I. Milovanovic, N. S. Doncov, L. Sit, T. Zwick, and B. Milovanovic

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Abstract:
In this paper, we present an efficient Artificial Neural Network (ANN)-based model to estimate both azimuth and elevation arrival angles of a signal source. To achieve this goal, the ANN model is constructed using measurement data obtained by a rectangular antenna array in the space-frequency domain. Unlike classical super-resolution algorithms such as 2D MUSIC, the proposed model is capable to account for imperfections of measurement equipment as well as mutual couplings between array elements. The neural model has been verified for several angular positions and frequencies. It is shown that use of ANN model to estimate angular positions of a signal source yields more accurate results when compared to 2D MUSIC. Moreover, the neural model significantly outperforms 2D MUSIC in terms of speed of computation.

Citation:
M. Agatonovic, Z. Stankovic, I. Milovanovic, N. S. Doncov, L. Sit, T. Zwick, and B. Milovanovic, "Efficient Neural Network Approach for 2D DOA Estimation Based on Antenna Array Measurements," Progress In Electromagnetics Research, Vol. 137, 741-758, 2013.
doi:10.2528/PIER13012114
http://www.jpier.org/PIER/pier.php?paper=13012114

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