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General Information
Prof. Adrian Olaru
University Politehnica of Bucharest, Romania
I'm happy to take on the position of editor in chief of IJMO. It's a journal that shows promise of becoming a recognized journal in the area of modelling and optimization. I'll work together with the editors to help it progress.
IJMO 2015 Vol.5(4): 290-294 ISSN: 2010-3697
DOI: 10.7763/IJMO.2015.V5.476

Doppler Correction to Improve TS-ESPRIT Algorithm Used in NULA

Youssef Fayad, Caiyun Wang, and Qunsheng Cao

Abstract—In this paper a modified ESPRIT algorithm based on time subspace (T-ESPRIT) and spatial subspace of estimate 1D-DOA (elevation) of a radiated source to increase the estimation accuracy with low computational load is introduced. Firstly, this algorithm treats with non uniform linear (NULA) array as a multiple sub-uniform linear arrays (ULA) with the common reference point, and the T-ESPRIT method is applied within each sub-ULA. Secondly, in order to increase the estimation accuracy, the estimated DOA is corrected with Doppler frequency (fd) which induced by target movement. Moreover, the proposed algorithm is combined the refined T-ESPRIT method with time differential of arrival (TDOA) technique to form TS-ESPRIT algorithm which calculates an optimum DOA. The estimated results are better than the traditional ESPRIT methods leading to the estimator performance enhancement.

Index Terms—DOAE, t-esprit, Doppler frequency, TDOA.

Youssef Fayad and Qunsheng Cao are with College of Electronic and Information Engineering, Nanjing University of Aeronautics& Astronautics, Nanjing 210016, China (e-mail: yousseffyad@nuaa.edu.cn, qunsheng@nuaa.edu.cn).
Caiyun Wang is with College of Astronautics Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China (e-mail: wangcaiyun@nuaa.edu.cn)


Cite: Youssef Fayad, Caiyun Wang, and Qunsheng Cao, "Doppler Correction to Improve TS-ESPRIT Algorithm Used in NULA," International Journal of Modeling and Optimization vol. 5, no. 4, pp. 290-294, 2015.

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