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PIER PIER B PIER C PIER M PIER Letters
2013-03-12
Efficient Neural Network Approach for 2D DOA Estimation Based on Antenna Array Measurements
By
Marija Agatonovic,

    Dr. Marija Agatonovic

    Faculty of Electronic Engineering

    University of Nis

    Serbia

    Homepage

Zoran Stankovic,

    Dr. Zoran Stankovic

    Faculty of Electronic Engineering

    University of Niš

    Serbia

    Homepage

Ivan Milovanovic,

    Dr. Ivan Milovanovic

    Singidunum University

    Serbia

    Homepage

Nebojsa Doncov,

    Prof. Nebojsa Doncov

    Faculty of Electronic Engineering

    University of Niš

    Serbia

    Homepage

Leen Sit,

    Dr. Leen Sit

    Institut für Hochfrequenztechnik und Elektronik

    Karlsruhe Institute of Technology

    Germany

    Homepage

Thomas Zwick,

    Dr. Thomas Zwick

    Institute of Radio Frequency Engineering and Electronics (IHE)

    Karlsruhe Institute of Technology

    Germany

    Homepage

Bratislav Milovanovic

    Professor Bratislav Milovanovic

    Faculty of Electronic Engineering

    University of Niš

    Serbia

    Homepage

Progress In Electromagnetics Research, Vol. 137, 741-758, 2013
doi:10.2528/PIER13012114
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
Marija Agatonovic, Zoran Stankovic, Ivan Milovanovic, Nebojsa Doncov, Leen Sit, Thomas Zwick, and Bratislav 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
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