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Multi-signal Localization Technique for Dual-satellite Geolocation System Using TDOA and FDOA

Wang Qin-guo

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Abstract

By computing and analysing cross ambiguity function of multi-signals,the feasibility of same frequency multi-signal localization in dual-satellite passive geolocation system using TDOA(time difference) and FDOA(frequency difference) is proved.Further more,a formula to compute the number of resolving same frequency multisignal at one time is put forward in dual-satellite passive geolocation system.In succession,the same frequency multi-signal′s resolving power for the satellite system is estimated and the same frequency multi-signal′s cross ambiguity function figure is presented.Finally, a high effect realization method for multi-signal localization is brought forward in which signal number is first estimated and local area′s cross ambiguity function is then computed.The method has been validated in engineering.

About this research paper

What this paper is about

By computing and analysing cross ambiguity function of multi-signals,the feasibility of same frequency multi-signal localization in dual-satellite passive geolocation system using TDOA(time difference) and FDOA(frequency difference) is proved.Further more,a formula to compute the number of resolving same frequency multisignal at one time is put forward in dual-satellite passive geolocation system.In succession,the same frequency multi-signal′s resolving power for the satellite system is estimated and the same frequency multi-signal′s cross ambiguity function figure is presented.Finally, a high effect realization method for multi-signal localization is brought forward in which signal number is first estimated and local area′s cross ambiguity function is then computed.The method has been validated in engineering.

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Available abstract

By computing and analysing cross ambiguity function of multi-signals,the feasibility of same frequency multi-signal localization in dual-satellite passive geolocation system using TDOA(time difference) and FDOA(frequency difference) is proved.Further more,a formula to compute the number of resolving same frequency multisignal at one time is put forward in dual-satellite passive geolocation system.In succession,the same frequency multi-signal′s resolving power for the satellite system is estimated and the same frequency multi-signal′s cross ambiguity function figure is presented.Finally, a high effect realization method for multi-signal localization is brought forward in which signal number is first estimated and local area′s cross ambiguity function is then computed.The method has been validated in engineering.

Key concepts: FDOA, Multilateration, Geolocation, Ambiguity function, SIGNAL (programming language), Computer science, Satellite, Satellite system

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Multi-signal Localization Technique for Dual-satellite Geolocation System Using TDOA and FDOA — Research Paper | ScholarLens