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Engineering Index Analysis of Localization Algorithm for Dual-satellite Passive Geolocation Using TDOA and FDOA

Ning Long

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Abstract

By computing the measurement precision of TDOA(Time Difference of Arrival) and FDOA(Frequency Difference of Arrival),TDOA and FDOA′s change rate caused by satellite′s movement,this paper puts forward that the best signal sampling time is 10～100 ms in Dual-satellite Passive Geolocation System using TDOA and FDOA.Further more,localization precision of engineering realization is deduced.Simulation results show that localization precision is about 1～3 km.The research and conclusion can provide reference for demonstration and analysis of localization precision index of dual-satellite passive geolocation system.

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What this paper is about

By computing the measurement precision of TDOA(Time Difference of Arrival) and FDOA(Frequency Difference of Arrival),TDOA and FDOA′s change rate caused by satellite′s movement,this paper puts forward that the best signal sampling time is 10～100 ms in Dual-satellite Passive Geolocation System using TDOA and FDOA.Further more,localization precision of engineering realization is deduced.Simulation results show that localization precision is about 1～3 km.The research and conclusion can provide reference for demonstration and analysis of localization precision index of dual-satellite passive geolocation system.

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Available abstract

By computing the measurement precision of TDOA(Time Difference of Arrival) and FDOA(Frequency Difference of Arrival),TDOA and FDOA′s change rate caused by satellite′s movement,this paper puts forward that the best signal sampling time is 10～100 ms in Dual-satellite Passive Geolocation System using TDOA and FDOA.Further more,localization precision of engineering realization is deduced.Simulation results show that localization precision is about 1～3 km.The research and conclusion can provide reference for demonstration and analysis of localization precision index of dual-satellite passive geolocation system.

Key concepts: FDOA, Multilateration, Geolocation, Computer science, Satellite, Realization (probability), Sampling (signal processing), Algorithm

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