A Moving Source Localization Method Using TDOA, FDOA and Doppler Rate Measurements

Dexiu HU  Zhen HUANG  Xi CHEN  Jianhua LU  

IEICE TRANSACTIONS on Communications   Vol.E99-B   No.3   pp.758-766
Publication Date: 2016/03/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.2015EBP3355
Type of Manuscript: PAPER
Category: Sensing
passive localization,  FDOA,  TDOA,  Doppler rate,  

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This paper proposes a moving source localization method that combines TDOA, FDOA and doppler rate measurements. First, the observation equations are linearized by introducing nuisance variables and an initial solution of all the variables is acquired using the weighted least squares method. Then, the Taylor expression and gradient method is applied to eliminate the correlation between the elements in the initial solution and obtain the final estimation of the source position and velocity. The proposed method achieves CRLB derived using TDOA, FDOA and doppler rate and is much more accurate than the conventional TDOA/FDOA based method. In addition, it can avoid the rank-deficiency problem and is more robust than the conventional method. Simulations are conducted to examine the algorithm's performance and compare it with conventional TDOA/FDOA based method.