In order to reduce the influence of time-difference-of-arrival measurement error on localization accuracy of time-difference-of-arrival-based four-satellite localization, we first introduce the frequency-difference-of-arrival information to the existing four-satellite time-difference-of-arrival localization algorithm and propose a time-difference-of-arrival/frequency-difference-of-arrival joint four-satellite localization method. The time-difference-of-arrival/frequency-difference-of-arrival localization method can improve the localization accuracy significantly as compared with time-difference-of-arrival localization method. We also derive the geometric dilution of precision of four-satellite localization for precision factor analysis. The simulation results show that, as compared with time-difference-of-arrival localization, absolute position measurement accuracy has little influence on time-difference-of-arrival/frequency-difference-of-arrival localization accuracy. Under the same conditions, the localization accuracy of four-satellite time-difference-of-arrival/frequency-difference-of-arrival is better than that of four-satellite time-difference-of-arrival. And time-difference-of-arrival/frequency-difference-of-arrival localization improves the distribution uniformly of geometric dilution of precision regarding the diamond configuration.

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timedifferenceofarrival measurement error uniformly diamond configuration frequencydifferenceofarrival information timedifferenceofarrivalfrequencydifferenceofarrival joint foursatellite localization geometric dilution of precision absolute position measurement accuracy precision factor

Guo Xiansheng,Lu Haoran,Zhang Yan,Zeng Botao,Guo Yebo,.Study on joint passive localization using time difference of arrival and frequency difference of arrival to improve the accuracy of four-satellite localization. 9 (),.

Guo Xiansheng,Lu Haoran,Zhang Yan,Zeng Botao,Guo Yebo,"Study on joint passive localization using time difference of arrival and frequency difference of arrival to improve the accuracy of four-satellite localization" 9

Guo Xiansheng,Lu Haoran,Zhang Yan,Zeng Botao,Guo Yebo,"Study on joint passive localization using time difference of arrival and frequency difference of arrival to improve the accuracy of four-satellite localization"