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has been cited by the following article:

• TITLE: Passive Localization Using Time Difference of Arrival and Frequency Difference of ArrivalWC

  AUTHORS: Xiansheng Guo, Yan Zhang, Botao Zeng

  KEYWORDS: Four-Satellite Localization, TDOA (Time Difference of Arrival), FDOA (Frequency Difference of Arrival), GDOP (Geometric Dilution of Precision), Passive Localization

  JOURNAL NAME: Journal of Computer and Communications, Vol.6 No.1, December 29, 2017

  ABSTRACT: In order to improve the accuracy and engineering feasibility of four-Satellite localization system, the frequency difference measurement is introduced to the four-Satellite TDOA (Time Difference of Arrival) localization algorithm. The TDOA/FDOA (Frequency Difference of Arrival) localization algorithm is used to optimize the GDOP (geometric dilution of precision) of four-Satellite localization. The simulation results show that the absolute position measurement accuracy has little influence on TDOA/FDOA localization accuracy as compared with TDOA localization. Under the same conditions, TDOA/FDOA localization has better accuracy and its GDOP shows more uniform distribution in diamond configuration case. The localization accuracy of four-Satellite TDOA/FDOA is better than the localization accuracy of four-Satellite TDOA.