APPLICATION OF THE NEWTON METHOD TO IMPROVE THE ACCURACY OF TOA ESTIMATION WITH THE BEAMFORMING ALGORITHM AND THE MUSIC ALGORITHM | Zendy

JoonHo Lee | Zendy; Yeong-Seok Jeong | Zendy; SungWoo Cho | Zendy; Woon-Young Yeo | Zendy; Kristofer S. J. Pister | Zendy

Open Access

APPLICATION OF THE NEWTON METHOD TO IMPROVE THE ACCURACY OF TOA ESTIMATION WITH THE BEAMFORMING ALGORITHM AND THE MUSIC ALGORITHM

Author(s) -

JoonHo Lee,

Yeong-Seok Jeong,

SungWoo Cho,

Woon-Young Yeo,

Kristofer S. J. Pister

Publication year - 2011

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 89

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier10112608

Subject(s) - multiple signal classification , computer science , estimation , algorithm , beamforming , telecommunications , engineering , antenna (radio) , systems engineering

In this paper, a numerical method for improving the performance of the beamforming algorithm and the MUSIC algorithm for TOA (Time-of-arrival) estimation is presented. It has been shown that the conventional beamforming algorithm and the MUSIC algorithm can be used for time delay estimation. Using the beamforming algorithm and the MUSIC algorithm for TOA estimation, the initial estimate for the TOA is obtained. To improve the accuracy of the TOA estimation, we apply the Newton iteration to the initial estimate. The initial estimates obtained from the beamforming algorithm and the MUSIC algorithm are updated to obtain the flnal estimates which are more accurate than the initial estimates in terms of the RMSE (Root Mean Square Error). To flnd the TOA which maximizes the beamforming spectrum or the MUSIC spectrum, we flnd

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